– 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: – 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
– 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
– Discussion: – see: limb development and physeal anatomy; – leg length discrepancy leads to awkward gait, & pelvic obliquity. – treatment of limb length inequality, requires an ability to predict leg length discrepancy at skeletal maturity; – differential diagnosis of limb length inequality – … Read more
– See: Methods to Etimate Growth Potenital – Arrest of the Growth Plate / Epiphysiodesis: – disruption of contra-lateral (normal) distal femora or proximal tibial growth plates is indicated when future discrepancies are < 5.1 cm at maturity; – references: – Closed shortening of the femur … Read more
– Discussion: – the ligaments of Humphrey and Wrisberg are meniscofemoral ligaments which run from the posterior horn of the lateral meniscus to the lateral aspect of the medial femoral condyle; – these ligaments are named based on their location in relation to the PCL; … Read more
– See: Tibial Plateau Frx Menu, Rim Fractures – Ligaments: – 60% of plateau frx will have ligamentous instability; – MCL accounted for 55%, LCL injuries for 22%, & combined cruciate & collateral injuries for 23% of lesions. – these may have poor prognosis; – Exam: – w/ isolated … Read more
– See: Limb Lengthening Fixators Post Op Care in the Ilizarov Method: (by Dr. Mangal Parihar) distraction histiogenesis – Discussion: – lengthening thru the proximal tibia, tends to drift into valgus and procurvatum, and therefore consider presetting distraction in 5 deg of varus; … Read more