– See: Equinovarus: – Discussion: – most common problem; – in those w/ diplegia, it is bilateral & almost always flexible in child under three years; – diff dx: toe walking – Exam: – it is essential that the ankle and hindfoot be held in varus while … Read more
Discussion (see also: role of ankle and subtalar joint in gait) normally, during the transition from foot flat to heel off, the foot dorsiflexes as the body moves forward; gait consequences of equinus contracture: patient may adopt a toe to toe gait pattern or a toe to heel gait pattern (premature forefoot loading) reduced propulsion … Read more
(see also: Sub-Talar Fusion, Tibial-Talar-Calcaneal Fusion Discussion and Outcomes: optimal position for fusion see gait and role of ankle joint in gait ref: Ankle arthrodesis. Long-term follow-up with gait analysis. Exam: perform an Allen test for the foot vasculature; note function of posterior tibial pulse while the dorsalis pedis pulse is occluded and vice versa; … Read more
– See: Sub-Talar Fusion Tibial-Talar-Calcaneal Fusion – Discussion: – for pts w/ well-aligned fusion, walking gait in appropriate shoe is almost normal; – expect 16% decrease in gait velocity and 3 % increase in oxygen consumption; – running … Read more
– Anatomy: – PCL is approximately twice as strong and twice as thick as the normal ACL (therefore less commonly injured); – size: 13 mm, its length, 38 mm, (approximates that of ACL); – origin: – PCL originates from the antero-lateral aspect of … Read more
– Discussion: – sesamoid bone w/ in quadriceps tendon; – cartilaginous posterior surface is divided by a rounded vertical ridge into a larger, lateral portion for articulation w/ lateral condyle of femur and smaller medial portion for articulation w/ medial condyle of femur; – w/ increasing knee flexion, contact … Read more
– See: Ligaments of the Wrist – Anatomy of TFCC: – consists of articular disc (triangulyar fibrocartilage), meniscus homologue (lunocarpal), ulnocarpal ligament, dorsal & volar radioulnar ligament, and ECU sheath; – it originates from firm attachments on medial border of distal radius and inserts into the base of the ulnar styloid; … Read more
– See: role of knee joint in locomotion and mechanical axis – Discussion: – bones forming the knee joint are femur, tibia, & patella; – both left and right femurs converge toward knee and each tibia is nearly vertical, femur and tibia meet angle of some 5-12 deg; … Read more
– See: Biomechanics of the ACL: – Discussion: – length of 38 mm (range 25 to 41 mm) – width of 10 mm (range 7 to 12 mm) – made up of multiple collagen fascicles; – surrounded by an endotendineum – microspocially: interlacing fibrils … Read more
– See: – Total Hip Replacement Menu: – total hip in DDH – acetabular component menu: – crowe classification – Anatomic Position – Discussion: – w/ low dislocation, attempts should be made for antatomic placement, but should also be considered w/ high dysplastic dislocation; – long term success … Read more