– See: Meniscal Tears – Discussion: – vertical longitudinal tear w/ displacement of inner margin – more common in younger pts & are frequently assoc w/ ACL tear; – 3 times more common in the medial as compared to the lat compartment – can produce the classic … Read more
– See: X-rays of the Foot – Broden’s View: – used to better visualize the subtal joint; – pt is supine w/ knee slightly flexed and supported by sandbag; – foot rests on the film cassette with neutral dorsiflexion; – entire lower leg and foot is internally rotated 45 deg; – central beam directed toward … Read more
– Box Cut: – ensure that box cutting jig is placed flush on anterior and distal femoral surfaces; – box cutting jig is centered over the intercondylar notch (or IM drill hole); – if the knee has … Read more
– See Bone Topics: Calcaneus Capitate Clavicle Coracoid Process Femur Fibula Foot Hamate Humerus Lunate Navicular Olecranon Patella Pisiform Radius Sacrum Scaphoid Scapula Sesamoid Bones (Foot) Sesamoid Bones (Hand); Talus Tibia Trapezium Triquetrium Ulna
– Discussion: – there is inherent graft weakness during period after implantation when allograft& autograft tissues undergo necrosis, revascularization, and cellular proliferation; – weakest link initially is graft fixation site; – it is important to achieve strong fixation initially; … Read more
– See: – Bone Patella Bone Allografts – Non Bone Patella Bone Reconstruction – Discussion: – Anatomy of ACL; – ACL Biomechanics; – Graft Tunnel Sites / Isometry: – Graft Biomechical Characteristics: – … Read more
– Discussion: – blood supply to skin around the knee is random (as opposed to axial) – there are multiple small overlapping vessels that are interrupted by multiple small incisions; – random supply is sustained by both intrinsic and extrinsic sources; – intrinsic contributors to … Read more
– Discussion: – see bone circulation: – blood supply to tibial shaft is dervied from nutrient artery & periosteal vessels; – nutrient artery: – arises from posterior tibial artery as it enters into the posterior tibial cortex, distal to the soleal line at the … Read more
– See: – adolescent blounts: – growth plate anatomy – Infantile Blounts Disease: (pathologic tibia vara) – differential diagnosis and examination (see genu varum) – most common form of disease; – growth disorder of medial portion of proximal tibial physis; – … Read more
– Discussion: – ratio between perpendicular distance from lower articular margin of patella to tibial plateau (A) and the length of articular surface of patella (B) (use lateral view w/ knee in at least 30 deg of flexion); – AB ratio in 171 normal knees was 0.80 w/ no gender diff; … Read more