– 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
– 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
– Discussion: – indicators for poor outcome: – encroachment of tumor on the popliteal neurovascular bundle; – pathologic fracture with contamination of multiple tissue compartments; – local recurrence from previous surgery The Treatment of Lower Extremity Sarcomas With … Read more
– Discussion: – see: limb development and physeal anatomy; – leg length discrepancy leads to awkward gait, & pelvic obliquity. – treatment of limb length inequality, requires an ability to predict leg length discrepancy at skeletal maturity; – differential diagnosis of limb length inequality – … Read more
– Discussion: – classified pelvic ring injuries simply according to site of injury; – anterior disruption can occur thru either pubic symphysis or pubic rami; – injury may be through the ilium, the SI joint, or the sacrum; – it can involve frx-dislocation of SI joint, which … Read more
– Discussion – principles of treatment are maintenance of ROM & containment of femoral head through the evolution of healing of the epiphysis; – in child > 5 yrs who has more than 1/2 of epiphysis involved, abduction bracing or surgery are methods of treatment currently employed; … Read more
– Discussion: – when the frx is sufficiently oblique & is not comminuted, it can be treated w/ a lag screw to produce intrafragmentary compression, and neutralization plate placed laterally to prevent frx from slippling; – disadvantages of lateral plating: – prominent lateral screws may cause … Read more
– Discussion: Anterior Lesion: – lateral compression injury, contralateral type (Bucket Handle): – bucket handle type of injury is usually caused by direct blow to pelvis; – anterior fracture may be on the opposite side to the posterior lesion (contralateral type) or all four rami may fracture anteriorly; … Read more
– Discussion: – its the most common pelvic fracture pattern; – involves compression injury to sacrum, w/ cancellous impaction; – sacral injury is often not identified & frx pattern is often misidentified as isolated pubic ramus frx; – sacral compression frxs are usually … Read more
– See: Pelvic Fractures – Discussion: – most common form of pelvic fracture; – transverse frx of pubic rami & ipsilateral / contralateral to posterior injury; – LC injuries are described by both their anterior and posterior pathology; – pelvic ring implodes or collapses, & one side rotates … Read more