– See: Biomechanical Role: – Discussion: – ACL tears most often occur during football and basketball in younger patients, and occur most often from skiing injuries in older patients; – substantial anterior tibial shear forces that stress ACL are produced from quadriceps contraction, esp in 0-30 deg of extension; … Read more
– See: – Arteriography – Arterial Trauma – Compartment Syndrome – Knee Dislocation – Popliteal Artery – Reperfusion Injury – Discussion: – note that the worst error to make is to underestimate the need to … Read more
– from Johansen, et al. (1990) Skeletal / soft-tissue injury Low energy (stab; simple fracture; pistol gunshot wound): 1 Medium energy (open or multiple fractures, dislocation): 2 High energy (high speed MVA or rifle GSW): 3 Very high energy (high speed trauma + gross contamination): 4 Limb ischemia … Read more
– See: – meniscal injury – anterior cruciate ligament: – evaluation of ACL injuries: – bone patellar bone reconstruction: – hamstring reconstruction: – allograft reconstruction: – Discussion: … Read more
– Discussion: – see flexion and extension gaps: – quantification of joint line malposition: – joint line position lies about 3 cm distal to the medial femoral epicondyle and 15 mm above the fibular head; – if the opposite knee has … Read more
– Discussion: – accetable reduction: – more than 50% of cortical overlap; – > 10 deg of angulation in any plane is unacceptable – < 5 deg of varus or valgus; – < … Read more
– Discussion: – proximal tibiofibular joint will prevent valgus correction unless fibula is shortened or tibiofibular ligaments are removed; – transection if tibiofibular ligamets: (preferred technique) – performed thru same incision as for osteotomy; – proximal tibiofibular joint capsule is disrupted … Read more
– See: – Ankle Frx – Syndesmotic Injury – Weber C Frx – Discussion: – a proximal fracture of fibula resulting from external rotation; – there are variations in … Read more
– See: Bone Tumor Menu: – Osseous Sarcoma: – occur less often in bone than in soft tissue; – occurs in older patient population & may arise out of Pagets Dz or from a bone infarct (such as sickle cell); – it usually presents as an aggressive stage IIb … Read more
– See: Lumbar Plexus: – Anatomy: – lumbosacral plexus is derived from L4, L5, S1, S2, S3 & S4 roots, each giving rise to anterior and posterior branches; – anterior branches supply flexor muscles of limb, & posterior branches supply extensor and abductor muscles; – superior gluteal nerve (L4 … Read more