"ORTHOPEDICS" FMGE Past 5 Years IMP PYQs by Dr. Jambukeswaran | Flashback 2023

Understanding Colles Fracture and Its Displacement

Patient Presentation and Initial Assessment

• A 60-year-old female patient presents with pain and swelling in the left wrist after a fall on an outstretched hand, indicating a potential fracture.

• The examination reveals a dinner fork deformity, prompting questions about the specific displacement associated with this type of fracture.

Displacement Types in Colles Fracture

• The discussion focuses on six classical displacements relevant to Colles fractures, emphasizing the need to understand these for effective treatment.

• The primary displacement responsible for the dinner fork deformity is identified as proximal and dorsal displacement of the radius.

Six Classical Displacements of Colles Fracture

• A mnemonic "DILS" is introduced to remember the six displacements:

• Dorsal tilt

• Dorsal displacement

• Impaction

• Lateral tilt

• Lateral displacement

• Supination

Treatment Protocol: Colles Cast

• The treatment of choice for a Colles fracture is a below-elbow POP cast applied in palmar flexion and ulnar deviation.

• Proper positioning during casting helps neutralize various displacements:

• Traction reduces impaction.

• Palmar flexion addresses dorsal tilt/displacement.

• Ulnar deviation corrects lateral tilt/displacement.

Differentiating Between Fractures

• If there were ventral tilt and ventral displacement instead, it would indicate a Smith fracture rather than a Colles fracture.

Identifying Osteochondroma in Adolescents

Case Study: Adolescent Patient Presentation

• A case involving a 17-year-old boy presenting with a painless lump on the medial aspect of his right knee raises diagnostic considerations.

Radiographic Findings

• X-ray analysis shows growth emanating from the metaphysis of the femur, suggesting an outward pedicle formation typical of certain bone tumors.

Diagnosis Conclusion

Understanding Osteochondroma and Its Implications

Introduction to Osteochondroma

• The speaker introduces osteochondroma, also known as exostosis, and encourages viewers to subscribe and engage with the channel.

Key Characteristics of Osteochondroma

• Osteochondroma is identified as the most common benign bone tumor, frequently appearing in medical entrance exams.

• It originates from spongy bone tissue and is covered by a cartilaginous cap; "chondro" refers to cartilage in its name.

Radiological Appearance

• X-rays may show a smaller size of osteochondroma compared to its actual size during surgical removal due to the cartilaginous cap not being visible on radiographs.

• The practical point emphasized is that the tumor's size appears larger when excised than what is seen on an X-ray.

Pathogenesis and Demographics

• The development of osteochondromas in children is attributed to abnormal activity in the cambium layer of the periosteum, which plays a crucial role in growth.

• Most commonly occurs during growth periods, with a male preponderance; it arises specifically from the metaphysis.

Symptoms and Pain Causes

• Typically asymptomatic; 99% of patients do not experience symptoms. When pain does occur, it can be due to:

• Bursitis associated with osteochondroma.

• Fracture of the tumor itself.

• Malignant transformation (rare).

• Nerve compression caused by the tumor.

Treatment Options

• Excision is noted as the treatment of choice for osteochondromas. Complete removal followed by biopsy is essential due to potential malignant transformation.

Identifying Deformities Associated with Rheumatoid Arthritis

Clinical Presentation

• A case study presents an elderly patient with a deformity characterized by flexion at distal interphalangeal joints and hyperextension at proximal interphalangeal joints—identified as swan neck deformity.

Differential Diagnosis

• The speaker clarifies that this deformity indicates rheumatoid arthritis rather than conditions like osteomalacia or osteoarthritis.

Understanding Joint Nodules

• In contrast, nodules associated with osteoarthritis are described: Heberden's nodes appear at distal interphalangeal joints while Bouchard's nodes appear at proximal interphalangeal joints.

Common Deformities in Rheumatoid Arthritis

• Typical deformities include:

• Swan neck deformity (flexion/hyperextension pattern).

• Boutonnière deformity (buttonhole appearance).

• Hitchhiker’s thumb (deviation patterns).

EZ Deformity and Related Conditions

Understanding EZ Deformity

• The term "EZ deformity" refers to ulnar deviation of the metacarpophalangeal joint, accompanied by radial deviation at the proximal interphalangeal joint. This condition is sometimes referred to as a "piano key hand."

• The "piano key hand" is characterized by ulnar deviation and spread-out fingers, resembling the motion of a pianist's hands on a keyboard.

Telescoping Fingers and Associated Conditions

• Telescoping fingers are associated with two primary conditions: rheumatoid arthritis and psoriatic arthritis. These should be noted for multiple-choice questions (MCQs).

Wind-Swept Deformity in Lower Limbs

• A classical wind-swept deformity occurs when one knee exhibits genu valgum while the other shows genu varum, resembling limbs affected by wind.

• Spread-out toes in lower limbs are termed "Torchlight deformity." Sudden onset flat foot can indicate tibialis posterior insufficiency, which may also suggest underlying rheumatoid arthritis.

Key Deformities and Their Radiological Features

• Baker's cyst can occur alongside knee joint issues; it is often linked to rheumatoid arthritis.

• The buttonhole or botanius deformity affects the proximal interphalangeal joint, while square neck deformity impacts digital joints.

Radiological Signs of Rheumatoid Arthritis

• Two critical radiological signs for diagnosing rheumatoid arthritis include symmetrical joint space narrowing and periarticular osteoporosis.

• Symmetrical joint space narrowing indicates rheumatoid arthritis, whereas asymmetrical narrowing suggests osteoarthritis.

Summary of Key Points for Diagnosis

• Remember that symmetrical joint space narrowing correlates with rheumatoid arthritis diagnosis; asymmetrical narrowing points towards osteoarthritis.

Diagnosis of Hand Pathology

X-ray Findings and Initial Diagnosis

• An X-ray of the hand reveals an osteolytic area in the proximal phalanx of the index finger, indicating a potential pathology.

• The osteolytic area is located within the cancellous bone and does not protrude outside, ruling out certain types of tumors.

Differential Diagnoses Considered

• Osteosarcoma is excluded as it typically occurs around the knee joint rather than in the fingers.

• Other tumors like giant cell tumor and Ewing's sarcoma are also ruled out for similar reasons; they commonly affect long bones near joints.

Correct Diagnosis: Enchondroma

• The correct diagnosis is identified as enchondroma, characterized by internal destruction of bone rather than external protrusion (as seen in osteochondroma).

• Enchondromas are precancerous conditions with potential for malignancy, primarily affecting individuals aged 10 to 50 years.

Characteristics and Treatment

• Common sites for enchondromas include the little finger and ring finger; classical X-ray findings show lytic lesions with calcification.

• Treatment involves curettage with wall cauterization due to high recurrence rates; caution is advised regarding pathological fractures post-treatment.

Management of Hip Fractures in Elderly Patients

Patient Presentation

• An 80-year-old female presents after a trivial fall at home, experiencing pain in her left hip and inability to walk.

Clinical Assessment

• Examination reveals a shortened and externally rotated left lower limb, raising suspicion for a neck of femur fracture.

Diagnostic Imaging Insights

• X-ray confirms a classical neck of femur fracture; this finding necessitates immediate management considerations.

Recommended Management Approach

• Hemiarthroplasty is recommended as the treatment of choice due to age-related factors and risk of avascular necrosis associated with internal fixation methods.

Rationale Behind Treatment Choice

• In elderly patients with complete fractures, hemiarthroplasty provides better outcomes compared to other fixation techniques that may not be effective due to osteoporosis.

Complications Awareness

Gardens Classification of Fractures

Overview of Gardens Classification

• The Gardens classification categorizes fractures into four grades: Grade 1, Grade 2, Grade 3, and Grade 4. Each grade indicates the severity and displacement of the fracture.

Detailed Breakdown of Grades

• Grade 1: Incomplete fracture with no displacement; the fracture line is present but not complete.

• Grade 2: Complete but undisplaced fracture; the fracture is fully through but remains aligned.

• Grade 3: Complete and partially displaced; alignment is disturbed, affecting the trabecular pattern.

• Grade 4: Complete and totally displaced; significant misalignment leading to a high risk of avascular necrosis (AVN).

Trabecular Patterns in Fractures

• Understanding trabecular patterns is crucial for assessing fractures. Key areas include:

• Acetabular trabecular pattern

• Femoral head trabecular pattern

• Neck of femur trabecular pattern

Treatment Modalities Based on Garden's Type

• For Garden Type 1, conservative management such as hip spica or cancellous screw fixation is recommended.

• For Garden Type 2, treatment involves dynamic hip screw fixation due to its complete yet undisplaced nature.

• For Garden Types 3 and 4, prosthetic replacement options are necessary, including hemiarthroplasty or total hip replacement.

Prosthetic Replacement Options

• Hemiarthroplasty replaces only the femoral head if acetabulum integrity is maintained.

• Total hip replacement involves replacing both the femoral head and acetabulum when damage occurs. Bipolar prostheses are preferred for reduced wear on acetabulum.

Clinical Case Discussion

Scaphoid Fracture Presentation

• A patient presents with swelling in the anatomical snuff box after a fall on an outstretched hand, indicating a likely scaphoid fracture—common among young adults.

Management Considerations

Common Fractures and Their Management

Overview of Common Fractures

• The most common fractures in different age groups include:

• Supracondylar fractures in children.

• Clavicle fractures in newborns.

• Scaphoid fractures in young adults.

• Colles' fractures in the elderly.

Diagnosis of Scaphoid Fracture

• A patient with swelling and tenderness in the anatomical snuff box after a fall may have a scaphoid fracture.

• The cast used for immobilization is known as a scaphoid cast, which resembles a tumbler holding position.

Clinical Features and Tests

• Classical clinical features of scaphoid fracture include pain and swelling at the anatomical snuff box.

• Watson's test involves ulnar deviation followed by radial deviation, causing severe pain if a fracture is present.

Imaging and Complications

• An oblique wrist view (scaphoid view) is essential for diagnosing scaphoid fractures; MRI can detect hairline fractures not visible on X-rays.

• The waist of the scaphoid is the most common site for fracture, with potential complications including avascular necrosis due to compromised blood supply.

Treatment Protocol

• Maximum immobilization duration for scaphoid fractures can be up to 10 weeks to prevent avascular necrosis, which has a risk rate of about 40%.

• For undisplaced fractures, treatment typically involves immobilization with a scaphoid cast. Displaced fractures may require open reduction internal fixation using a Herbert screw.

Understanding Avascular Necrosis

Fracture Diagnosis and Treatment of the Patella

Overview of Patellar Fractures

• The diagnosis is identified as a fracture of the patella, specifically a transverse fracture. Treatment options are discussed, emphasizing that patellectomy is not necessary unless it’s a severely comminuted fracture.

• A cylinder cast is recommended for immobilization in cases of undisplaced fractures; however, this case presents with displacement greater than two millimeters, indicating conservative management is not viable.

Treatment Options for Patellar Fractures

• Tension band wiring with K-wire is highlighted as the appropriate surgical intervention for displaced fractures. This method utilizes K-wires to stabilize the fracture site effectively.

• The classification of patellar fractures includes transverse (most common), comminuted (second most common), and rare oblique types. Displacement criteria are defined based on the gap between fragments: less than two millimeters indicates an undisplaced fracture.

Surgical Techniques and Principles

• For undisplaced fractures, conservative treatment involves using a cylinder cast for six weeks. In contrast, surgery involving circumferential tension band wiring is indicated for displaced fractures.

• The tension band principle operates by compressing the fracture site during flexion, which aids in healing and achieving excellent results post-surgery.

Complications and Considerations Post-Surgery

• If a patella becomes severely comminuted beyond reconstruction capabilities, patellectomy may be required. This procedure has specific implications regarding knee function post-operation.

• After patellectomy, patients can perform most activities normally but may experience limitations in full knee extension (last 10 degrees). This condition is referred to as extensor lag or quadriceps lag.

Diagnosis of Wrist Swelling

Clinical Presentation

• A case study discusses a 30-year-old male presenting with progressive swelling around his wrist over three months. Previous procedures may have been performed due to visible scarring.

Diagnostic Imaging Insights

• An X-ray reveals an osteolytic lesion in the distal radius area. Identifying whether lesions are osteolytic or osteosclerotic helps narrow down potential diagnoses.

Differential Diagnosis

Osteoclastoma and Clubfoot Management

Osteoclastoma Overview

• The discussion begins with the identification of a sclerotic lesion, emphasizing that while femur is commonly affected, osteoclastoma can occur in any bone. Key features include periosteal reaction and osteosclerosis.

• The speaker notes that osteogenic sarcoma is a metaphysical tumor, contrasting it with osteochondroma. They assert that the answer to a related question is indeed osteoclastoma.

• A warning is given about repeated exam questions regarding this topic over the past five years, indicating the importance of recognizing patterns in examination content.

• Radiological features of osteoclastoma are highlighted: expanded and thinned cortex without periosteal new bone formation distinguishes it from other tumors like osteogenic sarcoma.

• The classical "soap bubble" appearance on X-rays due to thin septae within the lesion is emphasized as a hallmark feature of osteoclastoma.

Treatment Protocol for Osteoclastoma

• Surgical excision is identified as the treatment of choice for giant cell tumors (osteoclastomas), reinforcing its significance in management strategies.

Congenital Talipes Equinovarus (CTEV)

Identification and Pathogenesis

• A case study involving a six-week-old child with clubfoot (CTEV) introduces key management considerations. CTEV resembles a golf club in appearance.

• The speaker discusses commonality between genders, noting that CTEV occurs more frequently in boys compared to developmental dysplasia of the hip (DDH), which is more common in girls.

• The most accepted hypothesis for CTEV's development involves primary germ cell defects in the talus leading to congenital talonavicular dislocation.

Classical Deformities

• Four classical deformities associated with CTEV are outlined: equinus at the ankle, forefoot adduction, and varus at subtalar joint. These deformities guide treatment approaches.

Age-Wise Treatment Protocol

• An age-wise treatment protocol for managing CTEV is introduced, simplifying complex information into four stages based on age groups from birth to ten years and above.

Management Steps

1. Birth to 8 Weeks:

• Manipulation by mothers under guidance from physiotherapists or orthopedicians using methods like Ponseti's technique.

2. 8 Weeks to 5 Years:

• If manipulation fails after eight weeks, surgical intervention becomes necessary involving soft tissue release procedures.

3. 5 Years to 10 Years:

• Further interventions may be required depending on individual cases; specifics were not detailed but imply continued monitoring and potential surgery if needed.

4. 10 Years and Above:

Tissue Release Procedures and Management of CTEV

Overview of Tissue Release Procedures

• The procedure known as the Turquoise procedure involves soft tissue release, specifically targeting 13 structures to alleviate tightness caused by equinus at the ankle.

• Post-surgical correction is expected within a timeframe of eight weeks to five years; if not corrected by five years, further soft tissue procedures are deemed ineffective.

Bony Reshaping Techniques

• If CTEV (Congenital Talipes Equinovarus) persists beyond five years, bony reshaping techniques such as the Delvin Evans procedure may be necessary to reshape the talus and calcaneum.

• For cases neglected beyond ten years, options are limited to triple arthrodesis, which fuses three specific joints: the calcaneus and two others.

Treatment Timeline for CTEV

• A structured timeline for treatment includes:

• Birth to eight weeks: Manipulation using Poinsetti's method.

• Eight weeks to five years: Soft tissue procedures like the Turquoise procedure.

• Five to ten years: Bony reshaping via Delvin Evans procedure.

• Beyond ten years: Triple arthrodesis.

Clinical Case Discussion

• A clinical scenario presented involves a six-week-old child with deformity; manipulation and casting are recommended as initial management steps.

• Emphasis on Poinsetti's method as the treatment of choice for early-stage CTEV in infants.

Ankylosing Spondylitis Diagnosis

Patient Presentation

• A case study discusses a 34-year-old male with progressive lower back pain and morning stiffness lasting six months, improving with exercise—indicative of ankylosing spondylitis.

Diagnostic Imaging

• X-ray findings reveal classical features consistent with "bamboo spine," confirming a diagnosis of ankylosing spondylitis rather than other conditions like psoriatic arthritis or tuberculosis.

Key Diagnostic Criteria

• Important criteria include:

• Inflammatory backache lasting over three months that improves with activity but worsens at rest.

• Limitation in lumbar movement in both frontal and sagittal planes.

• Chest expansion limitations due to rib cage involvement.

Confirmation of Diagnosis

An Overview of Hip Dislocations and Related Conditions

Case Study: Posterior Hip Dislocation

• A young male involved in a road traffic accident presents with a shortened, internally rotated left leg, indicating potential hip dislocation. The classical attitude observed is flexion, adduction, and internal rotation of the hip.

• Examination reveals a positive vascular sign of North; the femoral artery pulsation is absent, suggesting posterior dislocation of the hip. A plain radiograph confirms that the femur head is out of the acetabulum and positioned posteriorly.

• The typical presentation for posterior dislocation includes flexion shortening and internal rotation. In contrast, anterior dislocation shows lengthening and external rotation with the femur head positioned anterior to the acetabulum. Vascular signs differ based on dislocation type.

• There are three types of hip dislocations:

• Posterior (most common)

• Anterior (second most common)

• Central (least common), where the head enters the pelvic cavity due to acetabular floor fracture. Understanding these distinctions aids in diagnosis and treatment planning.

• Dashboard injuries are identified as a primary cause for posterior hip dislocations when knees collide against a dashboard during an accident while seated with hips flexed at 90 degrees. This mechanism highlights important clinical considerations in trauma cases involving vehicle accidents.

Diagnostic Imaging Insights

• While X-rays are typically sufficient for diagnosing hip dislocations, CT scans may be employed to rule out associated acetabular fractures that could be missed on standard imaging techniques. This emphasizes the importance of thorough evaluation in suspected cases of complex injuries.

• Radiographic differences between anterior and posterior dislocations include:

• Anterior: Head appears larger as it is fully visible.

• Posterior: Head appears smaller due to being obscured by the acetabulum.

This practical distinction can aid clinicians in making accurate diagnoses based on imaging findings alone.

Treatment Approaches

• Closed reduction under anesthesia is established as the treatment of choice for managing hip dislocations, with various methods available including:

• Simpson's gravity method

• Allis traction method

• Vigilos method

These techniques should be studied further for detailed understanding and application in clinical practice.

Case Study: Avascular Necrosis Diagnosis

• A nine-year-old boy presents with pain and limping over six months; examination reveals mild wasting of his right thigh along with limited abduction and internal rotation due to pain—key indicators pointing towards avascular necrosis or Perthes disease rather than other conditions like developmental dysplasia or slipped capital femoral epiphysis which have different presentations.

Understanding Avascular Necrosis and Pelvic Fractures

Diagnosis of Avascular Necrosis

• The discussion begins with the science of hormonal imbalance, ruling out slipped capital femoral epiphysis due to normal height and weight. The X-ray findings indicate a "mushroom-shaped head," which is characteristic of certain conditions.

• The "sagging rope sign" is introduced as a classical indicator of Perthes disease, an idiopathic avascular necrosis affecting the femur's head.

• Clinical examination reveals decreased range of movement, particularly in adduction, abduction, and internal rotation due to severe pain associated with Perthes disease.

• The altered shape of the femoral head causes sharp pain when it rubs against the acetabulum during movement.

Types of Splints for Radial Nerve Palsy

• An "up splint" is identified as a treatment method for radial nerve palsy, which can be either dynamic or static.

• Static up splints immobilize the wrist in flexion to prevent contracture while allowing some flexibility; they can be made from various materials like plaster or silicone.

• Dynamic cock-up splints allow active flexion while using springs to return the hand to extension when relaxed. This method is considered superior for conservative management.

Understanding Pelvic Fractures

• A case study presents an X-ray showing a pelvic fracture after a fall from height. The separation between pubic rami indicates an open book type pelvic injury.

• Open book fractures are characterized by significant displacement between pubic rami, contrasting with normal alignment where they should be closer together.

Clarification on Fracture Terminology

• Distinction made between open book fractures and other types such as Chauffeur's fracture (radial styloid fracture), emphasizing that these terms are often confused but refer to different injuries.

• Various synonyms for Chauffeur's fracture are provided: Hutchinson’s fracture and backfire fracture highlight common terminology used in clinical settings.

Classification of Pelvic Fractures

Pelvic Fracture Classification and Clinical Signs

Types of Pelvic Fractures

• Type A: Stable fractures with minor cracks in the superior and inferior pubic rami; pelvis remains stable.

• Type B: Rotationally unstable but vertically stable; significant risk of bleeding, categorized as life-threatening.

• Subtype B1: Known as external rotation instability, often referred to as an "open book" pelvic fracture.

Specific Fracture Types

• Malgagni Fracture: Characterized by extensive fractures on one side of the pelvis visible on X-ray.

Median Nerve Injury Assessment

Clinical Examination Findings

• When a patient with a right forearm fracture is asked to make a fist, inability to flex the index finger indicates median nerve injury, known as the "pointing index."

• The "pointing index" is associated with median nerve injury; it can be tested using the Ashworth clasp test.

Additional Signs of Median Nerve Injury

• Ephtam Deformity: Occurs due to paralysis of abductor pollicis brevis; patients cannot abduct their thumb properly.

• Pen Test: Assesses ability to touch an object (e.g., pen); failure indicates median nerve dysfunction.

• O Sign: Patients unable to form a perfect circle with their fingers suggest median nerve impairment.

Supraspinatus Tendinitis and Painful Arc Syndrome

Understanding Supraspinatus Tendinitis

• Involves inflammation of the rotator cuff muscles, particularly supraspinatus.

• Painful Arc Syndrome characterized by:

• Initial 60 degrees of shoulder movement being painless.

• Movement between 60 to 120 degrees causing significant pain.

• Above 120 degrees again being painless.

Tuberculosis of the Hip Staging

Patient Presentation and Diagnosis

• A patient presents with hip pain and true limb shortening diagnosed as tuberculosis of the hip.

Staging Overview

• The disease stage is identified as advanced arthritis without subluxation based on symptoms like severe pain and limb shortening.

Babulkar and Pandey Staging System

• Stage I: Synovitis – inflamed synovium leading to fluid accumulation in the joint.

• Stage II: Early Arthritis – initial degenerative changes begin.

• Stage III: Late or Advanced Arthritis – more severe degeneration occurs.

Understanding Stages of Hip Joint Conditions

Stage One: Sine of I

• The hip joint exhibits a position of flexion, abduction, and external rotation to accommodate excessive fluid accumulation.

• This stage allows for increased limb length due to the positioning, indicating the body's response to manage excess fluid.

Stage Two: Early Arthritis

• If untreated, the condition progresses to early arthritis characterized by articular cartilage damage.

• In this stage, hip flexion shifts to a position of internal rotation and adduction, leading to apparent shortening of the limb.

• X-ray findings reveal narrowing of the joint space and a 50% reduction in range of motion across all directions.

Stage Three: Advanced Arthritis

• Significant destruction occurs in the articular surface; true shortening is observed as flexion and internal rotation increase.

• X-rays show severe subchondral erosion and destruction; gross restriction in movement is noted.

Stage Four: Pathological Dislocation

• This stage involves gross destruction of the femoral head or superior acetabular margin leading to pathological dislocation.

• A classical example is "traveling acetabulum," where the femur may protrude medially through a destroyed acetabulum.

Clinical Cases Related to Hip Injuries

Case Study: Road Traffic Accident

• A young man presents with shortened leg post-road traffic accident; examination reveals potential nerve injury.

Nerve Injury Insights

• Dashboard injuries commonly lead to posterior dislocation of the hip; X-rays typically show displacement behind or above the acetabulum.

• The sciatic nerve is most commonly affected in posterior dislocations while femoral nerve involvement occurs in anterior dislocations.

Saturday Night Palsy Explained

Understanding Saturday Night Palsy

• Characterized by inability to extend wrists after prolonged pressure on radial nerve during sleep (often under alcohol influence).

Neuropraxia Classification

• Neuropraxia represents transient motor paralysis without anatomical damage. It’s part of Sedans classification from 1943 which includes three types:

• Neuropraxia

• Axonotmesis

• Neurotomesis

Nerve Injury and Recovery Mechanisms

Understanding Neuropraxia

• The nervous system shows no anatomical damage despite physiological disruption; complete recovery is expected.

• Neuropraxia, a temporary loss of function without structural damage, can recover fully within 8 weeks.

• Examples include "crutch palsy" and "Saturday night palsy," which are forms of neuropraxia.

Classification of Nerve Injuries

• Sedgwick's classification outlines different types of nerve injuries, with neurotmesis being the most severe.

• Neurotmesis involves complete loss of axonal continuity and has the worst prognosis for recovery.

Orthotic Devices in Treatment

Use of Foot Abduction Orthosis

• The "put abduction orthosis" (also known as Steenbeek's brace) is used to prevent relapse in congenital talipes equinovarus (CTEV).

• In resource-limited settings, alternatives like wooden scales may be used effectively instead of expensive braces.

Application Protocol

• The orthosis should maintain foot abduction at 70 degrees full-time for the first three months, then only at night for four years.

• Current practices may vary from traditional protocols; however, adherence to guidelines is crucial for effective treatment.

Charcot's Arthropathy: A Diabetic Complication

Clinical Presentation

• A case study discusses a 67-year-old diabetic patient with knee swelling and minimal pain, indicative of Charcot's arthropathy.

Pathophysiology and Causes

• Charcot's joint disease results from abnormal pain sensation due to long-standing neuropathy; diabetes mellitus is the most common cause.

• Other causes include syphilis, leprosy, spinal cord injuries, and syringomyelia.

Radiological Features in Charcot’s Joint Disease

X-ray Findings

Osteolysis and Joint Conditions

Key Features of Joint Conditions

• Distended, sclerosed, dislocated, and disorganized joints can be identified through imaging. Osteolysis indicates complete absorption of bone structure.

• Classical X-ray features of Charcot joints include debris or loose bodies within the joint space, indicating significant damage.

Nerve Injuries and Orthotic Devices

• The median nerve is commonly injured in specific clinical scenarios; this is referred to as "pointing index" in Asna's classification.

• Identification of orthotic devices such as Taylor's brace is crucial; it provides support for conditions like paraspinal muscle spasms or vertebral fractures.

Orthotic Braces: Indications and Uses

Types of Braces

• Taylor's brace is indicated for patients with severe dorsal lumbar pain or spinal instability due to conditions like TB spine.

• Ash braces provide anterior support to maintain a hyperextended position for correcting kyphosis.

Specific Applications

• Milwaukee's brace treats congenital scoliosis, while Boston braces are traditional thoracolumbosacral orthoses used primarily in children.

• Both Milwaukee and Taylor’s braces are versatile but have specific applications based on patient age and condition severity.

Hip Dislocation Diagnosis

Clinical Presentation

• A 30-year-old male presents with left hip pain post-road traffic accident; examination reveals characteristic positions indicating anterior dislocation (flexion, abduction, external rotation).

Mechanisms of Injury

• Anterior dislocations often result from dashboard injuries during car accidents; posterior dislocations may occur from violent impacts.

Kippel-Feil Syndrome Overview

Identifying Characteristics

• Kippel-Feil syndrome is characterized by low hairline and short neck due to congenitally fused cervical vertebrae.

Differential Diagnosis

Shoulder Congenitally Elevated Scapula

Overview of Sprengel's Shoulder

• Sprengel's shoulder is characterized by a congenitally elevated scapula on one side, often associated with Klippel-Feil syndrome. This condition results in the scapula being positioned at a higher level than normal.

Diagnosis of Patellar Fracture

Identification and Classification

• A 25-year-old male presented with pain and swelling in the right knee; radiographs confirmed a patellar fracture. The diagnosis is straightforward as it shows two separate poles indicative of this injury.

Types of Patellar Fractures

• Patellar fractures are classified into undisplaced and displaced types, with transverse fractures being the most common (85%). Comminuted fractures follow as the next most common type.

Imaging Techniques for Patella Visualization

Skyline View Technique

• The preferred imaging technique to visualize the patella is the Skyline View, where the patient lies prone, allowing for optimal X-ray beam positioning from above. This view helps detect even minor cracks or fractures in the patella.

Galeazzi Fracture Diagnosis

Characteristics of Galeazzi Fracture

• The X-ray reveals a fracture in the lower third of the radius along with disruption of the distal radial joint, confirming a Galeazzi fracture—defined as a fracture of the lower third radius accompanied by distal radial joint subluxation.

Montage and Smith Fractures Explained

Definitions and Differences

• Montague fracture: Upper third ulna fracture with proximal radial joint dislocation.

• Smith fracture: Reverse Colles' fracture characterized by an extra-articular distal radial fracture that presents dorsal tilt and displacement. Intra-articular variants are termed Barton fractures.

Radio-sensitivity in Bone Tumors

Ewing Sarcoma Insights

• Ewing sarcoma is noted as highly radio-sensitive among bone tumors, effectively shrinking upon radiation treatment before definitive surgical management is pursued. It typically arises from endothelial cells within bone marrow, predominantly affecting individuals aged 10 to 20 years old.

X-Ray Features of Ewing Sarcoma

Characteristic Appearances

• Classical X-ray signs include "onion peel" appearance due to periosteal reaction resembling layers of an onion; other notable appearances include "matheten" appearance and "cracked rice" appearance which may be relevant in image-based questions regarding this tumor type.

Chondrosarcoma Diagnosis via Imaging

Identifying Popcorn Calcification

Compartment Syndrome and Orthopedic Emergencies

Understanding Compartment Syndrome

• The discussion begins with classical X-ray features of tumors, specifically mentioning "industrial scalloping" and "popcorn calcification."

• A case study is presented involving a young male patient with a right tibial shaft fracture from a road traffic accident, now experiencing severe leg pain and absent distal pulse.

• The symptoms lead to the diagnosis of compartment syndrome, also known as workman's ischemia, which is classified as an orthopedic emergency requiring immediate intervention.

Emergency Management

• The recommended emergency procedure for compartment syndrome is fasciotomy. This involves making a 10 cm incision to relieve pressure and allow for revascularization.

• Normal intra-compartment pressure ranges from 10 to 20 mmHg; pressures exceeding 30 mmHg indicate compartment syndrome necessitating urgent action.

Sequestrum in Osteomyelitis

• A case of a young girl with thigh swelling and discharging sinus reveals the presence of sequestrum (dead bone), which can emerge through an epithelial-lined sinus.

• Key terms are defined:

• Sequestrum: dead bone that has lost blood supply.

• Involucrum: new bone formation around the sequestrum.

• Cloaca: openings in the bone allowing discharge.

Types of Sequestra

• Various types of sequestra are discussed based on shape and consistency:

• Pencil-like or circular in infants,

• Conical in amputation cases,

• Feathery in syphilis,

• Color indicators such as black for fungal infections or green for Pseudomonas.

Tuberculosis Affecting the Hip Joint

Common Areas Affected by Tuberculosis

• Discussion shifts to tuberculosis affecting the hip joint, identifying four common areas:

• Acetabular roof (most affected),

• Femoral head epiphysis,

• Femoral neck metaphysis,

• Greater trochanter.

Diagnosis Related to Giant Cell Tumors

• A biopsy image shows multinucleated giant cells at the knee joint, leading to a likely diagnosis of osteoclastoma (giant cell tumor).

• Differential diagnoses include aneurysmal bone cyst, characterized by blood vessel involvement indicated by hemoglobin presence.

Stages of Bone Healing and Fluorosis

Understanding Bone Healing Stages

• The area is described as deformable but not displaceable, indicating the patient is in the soft callus stage of fracture healing.

• Sir John Chanley identified several stages of bone healing: impaction, induction, hematoma formation, soft callus formation, hard callus formation, consolidation, and remodeling.

• Hunter's staging reiterates that during the soft callus stage, the bone remains deformable but not displaceable.

Characteristics of Fluorosis

• X-ray findings in patients with fluorosis include osteous sclerosis and generalized sclerosis; these changes are particularly noted in endemic areas like Dharmapuri and Salem districts in Tamil Nadu.

• Key features of skeletal fluorosis on X-rays include:

• Generalized osteosclerosis

• Ossification of ligaments and tendons

• Osteophytosis (excessive new bone formation)

Diagnosis and Treatment Insights

• In cases of suspected skeletal fluorosis, an X-ray of the forearm can reveal ossification of the interosseous membrane—a characteristic finding.

• A mother brings her newborn to a doctor due to limited abduction of the thigh accompanied by a click sound during examination—indicative of congenital hip dislocation or developmental dysplasia.

Congenital Dislocation Hip Management

• The clicking sound during hip abduction suggests a positive Ortolani test for congenital dislocation hip.

• The prescribed treatment involves using a Pavlik harness to maintain proper hip positioning while allowing some movement to prevent further dislocation.

Congenital Radial-Ulnar Synostosis

• A child exhibits flexion ability but lacks pronation/supination due to fused radius and ulna—diagnosed as congenital radial-ulnar synostosis.

Take Down Procedure in Congenital Radial Synostosis

Overview of the Take Down Procedure

• The take down procedure involves cutting and leaving a raw surface area, which may lead to synostosis. To mitigate this risk, fat from the forearm is placed between the fragments.

Importance of Fat Placement

• The inclusion of fat serves as a barrier that prevents synostosis during the healing process after the take down procedure.

Conclusion of Discussion

• The speaker concludes a five-year discussion on congenital radial synostosis, expressing hope that the class will be beneficial for listeners.

Encouragement for Students