A 45-year-old patient presents with shoulder pain after a fall, with tenderness over the acromion and limited abduction. The patient has a history of rotator cuff tendinopathy and is on NSAIDs. Which neurovascular structure is most at risk during surgical repair of the acromioclavicular joint? The injury involves the clavicular attachment of the deltoid and trapezius muscles, with potential damage to the nerve passing around the surgical neck of the humerus. What is the next step in management? A) Perform surgical fixation of the acromioclavicular joint immediatelyB) Assess for axillary nerve injury and consider MRI for rotator cuff assessmentC) Administer corticosteroids and schedule for conservative therapyD) Start physical therapy focusing on shoulder stabilizationE) Evaluate for possible brachial plexus injury and refer for nerve conduction studies

A 38-year-old woman reports persistent pain and swelling in the anterior elbow after a fall. Examination reveals tenderness over the olecranon and limited extension. She has a history of rheumatoid arthritis and is on corticosteroids. Which ligament stabilizes the medial aspect of the elbow and is most likely compromised? The joint's stability depends on the congruence of the trochlear notch with the trochlea of the humerus, reinforced by this ligament. What is the next step? A) Schedule for surgical repair of the ulnar collateral ligamentB) Begin physiotherapy to improve range of motionC) Order MRI to evaluate for ligament rupture and joint congruenceD) Perform elbow joint aspiration to rule out infectionE) Administer anti-inflammatory medication and advise rest

A 50-year-old male with a history of gout presents with acute pain and swelling in the dorsum of the hand, involving the metacarpophalangeal joints. He is on allopurinol and colchicine. Which joint surface feature is most palpable at the base of the thumb, and what is its clinical significance? The joint's stability involves the saddle-shaped facet of the first metacarpal articulating with the trapezium. What is the next step in management? A) Perform radiography to confirm joint degenerationB) Evaluate the palmar surface of the first metacarpal for osteophytesC) Assess for swelling over the trapezium for bursitisD) Administer corticosteroid injection into the carpometacarpal jointE) Palpate the tubercle of the scaphoid to assess for fracture or arthritis

A 60-year-old patient reports numbness and tingling over the dorsum of the hand, especially the thumb, index, and middle fingers. The patient has a history of repetitive wrist movements. Nerve conduction studies show slowed conduction velocity in the posterior interosseous nerve. Which joint's movement is primarily affected, and what is the clinical implication? The joint involved is biaxial, allowing flexion/extension and radial/ulnar deviation, with the fibrocartilaginous disc separating it from the distal radioulnar joint. What is the next step? A) Assess for wrist instability and order MRI of the radiocarpal jointB) Refer for surgical decompression of the nerveC) Evaluate for carpal tunnel syndrome and median nerve compressionD) Perform physical examination for ligament laxity and joint stabilityE) Administer wrist splinting and NSAIDs for inflammation

A 55-year-old woman with osteoarthritis reports pain localized to the palmar aspect of the fingers, with deformity of the proximal interphalangeal joints. She is on NSAIDs and physiotherapy. Which joint's ligamentous support is most critical for preventing lateral deviation during flexion? The joint is a hinge with a saddle-shaped trochlear notch of the ulna articulating with the trochlea of the humerus, stabilized by collateral ligaments. What is the next step? A) Start corticosteroid injections into the PIP jointsB) Advise splinting to prevent deformity progressionC) Order radiographs to evaluate joint space narrowingD) Assess the ulnar collateral ligament for integrity and stabilityE) Perform surgical joint debridement if conservative measures fail

A 42-year-old patient presents with pain and swelling in the palm, especially over the metacarpophalangeal joints, with morning stiffness. He has a history of psoriasis. The palmar surface of the hand shows thickening of the skin and nodules. Which joint feature is most palpable at the base of the fingers, and what is its significance? The joint is a condyloid joint allowing flexion, extension, and limited abduction/adduction, with the head of the metacarpal articulating with the proximal phalanx. What is the next step? A) Assess for boutonnière deformity and deformity correctionB) Administer disease-modifying antirheumatic drugs (DMARDs)C) Order radiographs to evaluate joint erosion and deformityD) Palpate the dorsal aspect of the MCP joints for swelling and nodulesE) Perform physical therapy focusing on finger mobility

A 65-year-old male with a history of gout reports acute pain in the interphalangeal joint of the big toe, with redness and swelling. He is on urate-lowering therapy. Which ligament stabilizes the lateral side of the toe joint, and what is its role? The joint is a hinge allowing flexion and extension, with the collateral ligaments providing lateral stability. What is the next step? A) Administer colchicine and advise rest and elevationB) Assess for ligament rupture and order ultrasound for soft tissue evaluationC) Schedule for surgical removal of tophi if conservative therapy failsD) Perform joint aspiration to confirm gouty crystalsE) Start antibiotics if infection is suspected

A 48-year-old patient reports pain and stiffness in the wrist, with difficulty gripping objects. Examination reveals swelling over the dorsal aspect and decreased range of motion. The joint involved is a biaxial joint with fibrocartilaginous disc separating it from the distal radioulnar joint. Which nerve is most at risk during surgical intervention? The joint allows flexion/extension and radial/ulnar deviation, with the posterior interosseous nerve supplying the dorsal wrist. What is the next step? A) Administer corticosteroid injections into the wrist jointB) Refer for nerve conduction studies to confirm nerve injuryC) Evaluate for nerve compression and plan for nerve decompression if neededD) Order MRI to assess for ligament tears and joint degenerationE) Start wrist immobilization and NSAIDs