Discussion: – peroneal nerve – peroneal palsy following TKR – nerve injury – discussion: – peroneal nerve palsy may lead to severe disability w/ foot drop and paresthesias; – note that in contrast to other types of nerve palsies, peroneal palsy may … Read more
– See: Peroneus Longus / Peroneus Brevis: – Discussion: – acute dislocation occurs by sudden forced dorsiflexion w/ concomitant eccentric contraction of the peroneal muscles; – classic teaching that the tendon dislocation occurs from a combination of dorsiflexion and eversion (like skiing), where as other authors feel that the injury occurs from dorsiflexion and inversion … Read more
– Discussion: – largest branch of the posterior tibial artery is peroneal artery arising high in leg and coursing downward in posterior compartment lateral to and deeper than the posterior tibial artery; – lies in the deep posterior compartment, just medial to fibula, just posterior to tibialis posterior, and just anterior … Read more
– See: – Innerv. Musc. Lower Limb – Innervation of the Leg and Foot: – Anatomy: – common peroneal nerve is derived from (L4, L5, S1, S2) as a part of the sciatic nerve; – posterior component, supplies short head of biceps femoris in thigh, crosses posterior to lateral head of gastrocnemius, and becomes subQ behind … Read more
– See: TKR Menu: – Peroneal Nerve and Peroneal Nerve Palsy – Nerve Injury from THR – Discussion: – peroneal nerve palsy following TKR usually presents acutely but in some cases there will be a delayed presentation; – risk factors: – use of epidural anesthesia; … Read more
– See: Classic osteosarcoma – Discussion: – uncommon variant of classic osteosarcoma; – primarily affects young adults; – presents as an enlarging, painless mass growing on surface of the bone; – most frequently seen in anterior proximal tibia & the posterior surface of the distal femur; – … Read more
– See: – Adult Condylar Fractures – Pediatric Elbow Injuries – Discussion: – in children, supracondylar frxs typically remains extra-articular & involves thin bone between coronoid fossa & olecranon fossa of distal humerus; – frx line angles from anterior distal point to posterior prox site; – in adults, supracondylar frx of humerus may be intra-articular; … Read more
– See: – Casting of Tibial Fractures – Distal Tibial Fracture – Intercondylar Eminence Fracture – Proximal Tibial Physeal Fractures – Proximal Tibial Metaphyseal Fractures – Tibial Tuberosity Fractures – Pediatric Ankle and Distal Tibia Fractures: – … Read more
– See: Osteochondral Frx – Discussion: – type of osteochondral frx of the patella which results from high impact jumping activities – mechanism: eccentric contraction of the quadriceps on the flexed knee; – occurs when the inferior pole of the patella of a child or … Read more
– See: Adult Pronation External Rotation Frx – Distal Tibia: – SH type II frx of distal tibial physis is most common pattern: – metaphyseal fragment is characteristically localized on lateral side or posterolaterally; – lateral or posterior displacement is also present; – SH type I frx … Read more