Unhappy Triad of O'Donoghue
The unhappy triad (O'Donoghue triad) is a combined knee injury involving the ACL, MCL, and medial meniscus, classically caused by a valgus contact force on a planted foot...
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Comprehensive guide to Kirschner wire (K-wire) principles in orthopaedic surgery covering wire properties and sizes, biomechanical principles of fixation, insertion techniques, clinical applications by region, tension band wiring principle,...
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The unhappy triad (O'Donoghue triad) is a combined knee injury involving the ACL, MCL, and medial meniscus, classically caused by a valgus contact force on a planted foot...
Tennis elbow = lateral epicondylitis (ECRB tendon origin degeneration). Golfer’s elbow = medial epicondylitis (flexor-pronator origin). Clinical: pain, tenderness,...
Second most common compression neuropathy after CTS; affects ulnar nerve at elbow. Symptoms: paresthesias in ulnar digits, weakness of intrinsic hand muscles. Tests: Tine...
Common in elderly and overhead athletes; supraspinatus most often torn. Clinical: pain, weakness in abduction/external rotation, night pain. Tests: Jobe’s, drop arm, exte...
Mallet: extensor tendon avulsion at DIP → inability to extend. Jersey: FDP avulsion at DIP → inability to flex. Mallet mechanism: forced DIP flexion; Jersey: fo...
Spectrum: acetabular dysplasia to frank dislocation. Risk factors: breech, female, family history, oligohydramnios. Clinical: Ortolani & Barlow tests in neonates; Galeazz...
Idiopathic avascular necrosis of femoral head in children 4–10 yrs. More common in boys; often unilateral. Clinical: limp, hip/knee pain, limited abduction/internal rotat...
SLAP = Superior Labrum Anterior to Posterior tear involving biceps anchor. Mechanism: overhead throwing, fall on outstretched hand. Types I–IV (Snyder classification). Cl...
Most common indication: displaced femoral neck fracture in elderly. Types: unipolar (Austin-Moore, Thompson) vs bipolar prostheses. Advantages: shorter surgery, less bloo...
AVN = ischemic necrosis of femoral head → collapse and arthritis. Risk factors: steroids, alcohol, trauma, sickle cell, Gaucher’s, idiopathic. Ficat staging I–IV; ARCO in...
Indications: medial compartment OA with varus deformity in young active patients. Goal: shift weight-bearing axis laterally to unload medial compartment. Techniques: late...
Cartilage repair technique for focal chondral defects