– See: – Pivot shift – Anterior Cruciate Ligament – Anterolateral Rotatory Instability – Clunk Test – Diagram – Lachman – Losee Test – reverse pivot shift Test – Discussion: – begins w/ the knee in flexion as an external rotation & valgus force are applied; – … Read more
– Discussion: – involves central or peripheral depression of frx of lateral plateau w/o associated lateral wedge fracture; – it usually occurs from minimal impact on weak osteoporotic bone; – commonly affects older age groups (55-60 yrs) w/ marked osteoporosis; – stability of joint is rarely affected & excellent … Read more
– See: – Congenital Deformities of the Hands: – Discussion: – rare anomaly – absence of digit, w/ cleft hand (“lobster claw” hand); – phalanges of middle finger, & sometimes corresponding metacarpal, are absent, & cleft in the plane of the missing digit & metacarpal separates … 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
– See: Midfoot/Forefoot Fractures – Discussion: – anatomy of the midfoot – mechanism: – because 2nd metatarsal is the longest metatarsal proximally, it will often be frxed at its base, with the other metatarsals dislocated; – dorsal capsule of Lisfranc’s … Read more
– See: – Discussion of Limb Lengthening – Limb Lengthening Fixators – Post Op Care in the Ilizarov Method: (by Dr. Mangal Parihar) – management of tibial bone defects – Osteotomy Considerations: – first described by DM Bosworth (SGO 1938), which … Read more
– Discussion of Limb Lengthening: – Distraction Histiogenesis: (osteoclasis): – whether a ring or unilateral fixator is used, there is some evidence that a better regenerate is formed with the use of titanium half pins rather than transfixation wires; – ref: Limb lengthening by callus distraction (callotasis). – … Read more
– Discussion: – PFFD – its impotant to distinguish between lengthening down the anatomic axis and lengthening down the mechanical axis; – lengthening along the anatomic axis will displace the knee medially (displacing the mechanical axis); – lengthening along the mechanical axis does not … Read more
– Theoretical Considerations: – Discussion of Limb Lengthening: – Distraction Histiogenesis: (osteoclasis): – Ilizarov Menu – Technique: – ring characteristics: – w/ the original Ilizarov technique, only two rings (each with drop wires) were used; … Read more
– See: Arthrodesis following TKR: – PreOp Planning for Arthrodesis: – Discussion: – arthrodesis provides potential of a painless, stable base of support but it does so at the expense of knee motion; – optimal position of arthrodesis: – slight valgus, 10 deg of external rotation, … Read more