Ortho Oracle - orthopaedic operative atlas

Data Trace Editor

Lunate

          – Acute Ligament Tear – Repair Technique   – Blood Supply to the Wrist   – Carpal Instability   – Differential Diagnosis   – Kienbock’s disease   – Luno-Triquetral Coalition   – Perilunate Dislocations   – Scapholunate Instability   – Vascularity of the Lunate   – X-ray findings – Discussion: … Read more

Lunate Implant

– Discussion:     – lunate shaped spacer implant made of silicone, vitallium, acrylic, or rolled-tendon is inserted into theresulting space to prevent migration of             other carpal bones;     – due to the high rate of synovitis, most surgeons are now reluctant to use lunate implants; – Technical Considerations:     – dorsal approach is … Read more

Lunotriquetral Dissociation

– See: Triquetrium – Lunotriquetral Dissociation:     – ulnar side carpal instability;     – involves disruption of lunotriquetral & volar radiolunotriquetral ligaments & attentuation or rupture of dorsal radiotriquetral attachments;     – w/ a isolated tear of the LT interosseous ligament, there will be only a small amount of increased motion, however, … Read more

Lupus Anticoagulant

– See: Antiphospholipid Antibodies- Discussion: – is antibody acting on phospholipid of prothrombin activator complex causing an in vitro anticoagulant effect that paradoxically is associated with thrombosis in vivo; – patients may demonstrate venous and arterial thrombosis and thrombocytopenia; – there is no agreement as to which group of tests is more sensitive to measure … Read more

Lumbar Burst Fractures

– See:       – Burst Fractures       – Lumbar vertebrae: – Discussion:     – typical injury pattern for burst frxs varies w/ anatomic level;     – L1 to L3 pedicles are frequently comminuted or detached;     – L4 to L5 frx usually present a consistent pattern:     … Read more

Lumbar Plexus

– Anatomy:     – primary ventral rami of five lumbar nerves and of first four sacral nerves combine to form the lumbar (L1, L2, L3, L4) & lumbosacral            (L4, L5, S1, S2, S3, S4) plexuses, each giving rise to anterior and posterior branches;           – anterior branches supply flexor … Read more

Lumbar Scoliosis

– See: Fusion to Sacrum: – Indications for Rx:       – curves > 40-45 deg;       – documented progression;       – marked imbalance with a shift to one side;       – substantial pain; – Operative Considerations:     – attempt to increase lordosis compared with that noted … Read more

Lumbar Stenosis

– Discussion:     – spinal stensosis is a narrowing of the lumbar spinal canal and/or neural foramina;     – results in compression of the cauda equina and lumbar nerve roots, producing neural root ischemia and neurogenic claudication;     – compression of neural structures also compresses vascular supply of nerves so that symptoms are predominately those of … Read more

Lumbar Vertebrae

– Discussion:     – their heights are less than their horizontal diameters;     – pedicles are relatively short and project from the upper half of body;     – laminae are thick & droop below level of pedicles but do not overlap;     – spinous process is hatchet-shaped and projects horizontally, with … Read more