Ortho Oracle - orthopaedic operative atlas

Lauge Hansen Classification

– Discussion: – theory based on reproduction of frx patterns in cadavera; – rationale was to guide closed treatment of fractures about the ankle; – initial position of the foot is either supination or pronation;       – supination of foot places tension on lateral structures of ankle;       – pronation places … Read more

Latissimus Dorsi

– origin: broad aponeurosis that originates on the spinous processesof the lower 6 thoracic and all lumbar vertebrae;          posterior crest of ilium, posterior surface  of sacrum, lower 3 or 4 ribs, and an attachment of the tip of the scapula; – insertion: flat tendon that twists upon itself to insert into the intertubercular groove of … Read more

Lateral Retinacular Release

– See: Retinacular Release for TKR:  – Discussion:      – see lateral anatomy of the knee and blood supply to the knee;      – lateral release detaches patella from lateral soft tissue structures, including lateral retinaculum, fibers from tensa fascia lata muscle, & joint capsule;           – a successful release should release the lateral … Read more

Lateral stenosis

– Discussion:     – involves impingment of nerve roots lateral to the thecal sac, as they pass thru the neural foramina;     – anatomically there is compression from medial aspect of hypertrophic superior articular facet,     – often associated with facet joint arthropathy (superior articular process enlargement) and disc disease;     … Read more

Lateral Radiograph of the Ankle

– Radiographic Findings:     – ankle frx:           – fibula overlaps posterior aspect of tibia, but posterior tubercle of tibia can still be seen;           – posterior subluxation of talus in mortise may be assoc w/ posterior lip frx or posterior talofibular ligament tear;     … Read more