– Anatomy: – lateral compartment – plantar muscles of the foot: – origin: – lateral condyle of tibia, head and proximal 2/3 of lateral surface of fibula, intermuscular septa and adjacent fascia; – course: – peroneus longus … Read more
– See: – Lateral Compartment – Anatomy: – origin: distal 1/3 of the anterior surface of the fibula and adjacent intermuscular septum; – insertion: dorsal surface of the base of the 5th metatarsal; – action: dorsiflexes and everts the foot at the ankle; – nerve supply: peroneal, L4, L5, S1 (see innervation) – synergist: extensor … Read more
– See: neuropathic disorders and neuropathic ulceration – Discussion: – neuropathies may be either acute or chronic; – acute: – Guillain Barre syndrome: best known acute neuropathy; – vasculitic neuropathy: – random involvement of … 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 … 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
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 … Read more
– See: – Carpal Instability – Ligaments of the Wrist – Discussion: – perilunate dislocation pattern provides a whole spectrum of wrist sprains, fractures, dislocations; – types of perilunate dislocations (in order of frequency): – transscaphoid-perilunate … Read more
– Technique for Surgical Neck Frx: – use 2.5 mm terminally threaded AO Schanz pins; – following appropriate reduction, one pin is inserted thru lateral arm, at a point 8 cm distal to acromion in order to avoid axillary nerve; – second pin is inserted … 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 … Read more