– Discussion: – distal epiphysis includes entire articular surface of distal end of femur & serves as origin of part of gastrocnemius muscle; – epiphyseal center of distal aspect of femur is present at birth in newborns, & it expands rapidly to fill both condylar regions. … 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: Lisfranc’s Frx – Anatomy: – proximal end of the second metatarsal is tightly recessed between first and third cuneiforms; – this mortise configuration effectively locks entire tarsometarsal complex, preventing medial or lateral translation; – no significant dislocation of metatarsals or cuneiforms can occur unless this bone is disrupted; – for this reason, pure transmetatarsaltarsal … 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 – Normal Variants – Development of Atlas: – Atlantooccipital disassociation – Jefferson frx – Discussion: – C1 has no central body – C1 vertebra is ring of bone w/ large lateral masses that provide only two … Read more
Anatomy & Sites of Compression of Cubital Tunnel – Discussion: – cubital tunnel extends from medial epicondyle to olecranon; – it serves as the major contraint for the ulnar nerve as it passes behind the elbow; – w/ flexion the cubital tunnel becomes taunt, and with extension the cubital tunnel becomes lax; – aponeurotic roof … Read more
– See – Arterial Menu – Cruciate Anastomosis – Discussion: – anastomoses between: – superior & inferior gluteal arteries and medial & lateral circumflex; – deep circumflex artery & ascending lateral circumflex femoral – … Read more
– Discussion: – anatomic axis of femur is approx 6 deg of valgus from mechanical axis or 9 deg of valgus from vertical axis w/ variations according to body habitus; – anatomic axis of tibia is in approx 2-3 deg of varus from mechanical axis; – lines … Read more
– vascular supply to the humeral head – Two Part Articular Segment Displacement: – fracture plane is through the anatomic (not surgical neck); – anatomic neck represents the old eiphyseal plate; – surgical neck represents the weakened area below the tuberosities and head approximately 2 cm distal to the … Read more
– Amputations in the Diabetic Patient – Above the Knee Amputation: – AKA prosthetics – Basic Science: – Below Knee Amputation: – amputation following fractures of the tibia – pediatric BKA: – BKA prosthetics – prosthetic feet – Foot and Ankle Amputation – Syme’s Amputation – Transmetatarsal Amputation – Chopart Amputations – Pediatric Amputations – … Read more