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Orthopaedic Wiki

Trigger Finger & de Quervain

Trigger finger: stenosing tenosynovitis of flexor tendon sheath (A1 pulley). Symptoms: painful clicking/locking of finger; risk in diabetics, RA. De Quervain: stenosing tenosynovit...

General | 👁 4 | 2 weeks ago

Modular Mega-prosthesis — Knee

Used after wide resection of distal femur/proximal tibia tumors. Modular systems allow intraoperative flexibility and immediate stability. Expandable designs used in children to ac...

Tumor | 👁 3 | 2 weeks ago

Foot & Ankle — Hallux Valgus

Lateral deviation of great toe with medial eminence (bunion). Risk factors: female gender, footwear, ligamentous laxity, pes planus. Clinical: pain, callosities, overlapping toes....

General | 👁 3 | 2 weeks ago

Biopsy Principles in MSK Oncology

Biopsy is critical for diagnosis but must follow strict oncological principles. Plan biopsy with final surgery in mind; incision should be longitudinal and in line with resection....

Tumor | 👁 5 | 2 weeks ago

Osteosarcoma — Diagnosis & Treatment

Most common primary malignant bone tumor in adolescents (after myeloma overall). Sites: metaphysis of long bones—distal femur, proximal tibia, proximal humerus. X‑ray: sunburst per...

Tumor | 👁 6 | 2 weeks ago

Chondrosarcoma — Grades & Surgery

Second most common primary malignant bone tumor after osteosarcoma, usually >40 years. Common sites: pelvis, femur, humerus, ribs. Graded histologically (I–III); dedifferentiated a...

Tumor | 👁 5 | 2 weeks ago

Osteoid Osteoma — Night Pain & RFA

Benign osteoblastic tumor

Tumor | 👁 4 | 2 weeks ago

Musculoskeletal Infections — Algorithm

Spectrum: cellulitis, abscess, septic arthritis, osteomyelitis. Principles: Early recognition, debridement, targeted antibiotics, stabilization, soft‑tissue cover. Diagnosis algori...

General | 👁 4 | 2 weeks ago

Bone & Joint Infections in HIV

HIV patients prone to bacterial (Staph aureus), mycobacterial (TB), fungal infections. Salmonella is a classic cause of osteomyelitis in HIV, especially with sickle cell disease. C...

General | 👁 3 | 2 weeks ago

Distal Radius — Colles/Smith/Barton

Colles: extra-articular, dorsal tilt; Smith: extra-articular, volar tilt; Barton: intra-articular rim fracture. Clinical deformities: dinner-fork (Colles), garden-spade (Smith). St...

Trauma | 👁 11 | 2 weeks ago

Scaphoid Fracture — Diagnosis & Treatment

Most common carpal fracture, usually waist (70%). Blood supply retrograde to proximal pole → high risk of AVN. Clinical: anatomical snuffbox tenderness, pain on axial loading of th...

Trauma | 👁 6 | 2 weeks ago

Charcot Arthropathy — Neuroarthropathy

Neuropathic osteoarthropathy due to sensory/autonomic neuropathy—diabetes most common cause. Eichenholtz stages: I (fragmentation), II (coalescence), III (remodeling). Sanders–Fryk...

General | 👁 4 | 2 weeks ago