The Hip - book

Transverse Carpal Ligament

– Discussion:     – transverse carpal ligament, is a heavy band of fibers which runs between hamate & pisiform medially to scaphoid and trapezium laterally, and forms fibrous sheath which contains carpal tunnel anteriorly within fibro-osseous tunnel;     – posteriorly, tunnel is bordered by carpal bones, and transports median nerve & finger flexor … Read more

Trans-scaphoid Perilunate Dislocation

– Discussion:     – often more stable than pure perilunate dislocation if waist frx is transverse and the scapholunate ligament has remained intact;     – it is usually more unstable than an isolated scaphoid frx because of ligament damage;     – consider internal fixation for the scaphoid frx and a capsular repair … Read more

TKR Femoral Cuts: Anterior, Posterior, Chamfer Cuts

– Theoretical Considerations:     – distance from posterior reesction plane to anterior resection plane must equal the internal dimension of femoral component being used;            – this cut must be made at a distance from the anterior cut equal to inner anterior-posterior dimension of femoral component used;       … Read more

Timing of Surgery in Orthopaedic Patients with Brain Injury

– see: anesthesia menu – Discussion:     – assessment of perfusion: damage control orthopaedics     – the most common situation is how to manage the femur fracture in the brain injured patient;         – some authors have expressed concern that intraoperative hypoxia and hypotension may commonly occur w/ early IM nail stabilization; … Read more

Thumb Swan Neck Deformity

– See:     – Phalangeal Injury     – Finger Swan Neck Deformity – Discussion:     – this deformity is more common in OA than in RA;     – deformity results from CMC joint dz (where as boutonniere deformity is mainly at MCP joint);     – result is erosion of articular … Read more

Thumb CMC Joint Instability

– See:          CMC Joint Arthritis          CMC Instability in the Metacarpals          Dislocations of the Thumb MP Joint – Discussion:     – dorsal instability is usually due to disruption of the dorsal radial ligament;           – dorsal-radial ligaments connects the trapezium to the dorsal radial side of the … Read more

Thoracic Outlet Syndrome

– See: Vascular Problems of the Upper Extremity: – Discussion: – thoracic outlet space is created by the clavicle, first rib, subclavius muscle, costoclavicular ligament, and anterior scalene muscle; – most often affects subclavian artery, vein, and lower trunk (C8 & T1) of brachial plexus; – both the subclavian artery and the brachial plexus traverse … Read more

TFCC Repair

– Discussion:     – indicated primary for traumatic peripheral ulnar sided TFCC tears;     – negative predictive factors for successful repair include concomitant ulnocarpal impaction syndrome (associated w/ degenerative tears) and peripheral radial tears (due to the relative avasucularity of the disc in this region;            – some surgeons feel … Read more