Ortho Oracle - orthopaedic operative atlas

Posterior Iliac Crest Graft Harvest

– See: Autograft Discussion – PreOp Planning:     – if patient has undergone previous bone graft harvests, consider CT scan to determine amount of remaining bone left in the crest; – Technique:     – ensure that appropriately sized self retaining retractors are available;     – straight longitudinal incision is made over posterior superior … Read more

Posterior Femoral Cutaneous Nerve

– is derived from the Lumbrosacral Plexus – arises from posterior branches of S1, S2 & anterior branches of S2, S3; – travels thru greater sciatic foramen; – accompanies Sciatic Nerve in gluteal region; – continues downward in midline deep to the fascia lata, giving off branches that supply the skin of the posterior thigh.

Posterior Elements: Burst Fracture

– Discussion:     – typically the posterior column remains intact w/ a burst frx;     – w/ severe injury, anterior angulation may damage posterior ligamentous ligament complex, creating an unstable burst frx;     – w/ further axial loading, inferior facets of upper vertebrae wedge apart superior facets and pedicles of the fractured … Read more

Posterior Column of Acetabulum

– See:      – Classification and Column Theory      – Posterior Wall Fractures      – AO Foundation Posterior Column Frx – Discussion:     – posterior column extends from obturator foramen thru posterior aspect of the wt bearing dome              of acetabulum & then obliquely through greater sciatic notch;     – frx of … Read more

Posterior Atlanto-Axial Arthrodesis

– Indications:     – displaced type II dens frx;           – note that if posterior C1-C2 fusion is begin considered for type II dens frx, it is important to ensure that there is not a                  concomitant C1 arch frx; – Anatomy:     – vertebral arteries:           – … Read more