Ortho Oracle - orthopaedic operative atlas

Tibia and Fibula

Management of Fibula in HTO

– Discussion:     – proximal tibiofibular joint will prevent valgus correction unless fibula is shortened or tibiofibular ligaments are removed;     – transection if tibiofibular ligamets: (preferred technique)            – performed thru same incision as for osteotomy;            – proximal tibiofibular joint capsule is disrupted … Read more

Malignant Fibrous Histiocytoma

– See: Bone Tumor Menu: – Osseous Sarcoma:     – occur less often in bone than in soft tissue;     – occurs in older patient population & may arise out of Pagets Dz or from a bone infarct (such as sickle cell);     – it usually presents as an aggressive stage IIb … Read more

Losee Test

– 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

Lobster Hand

– 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

Lisfranc’s Fracture / TarsoMetatarsal Injuries

– 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 joint, lacking sufficienct reenforcement, will to support the load and will collapse, resulting in dorsal … Read more