– Discussion: – Anatomy and Function of PCL: – mechanism of injury: – fall on a flexed knee with plantar flexed ankle; – associated injuries: – ACL and collateral ligament injury (knee dislocation); – when PCL injury occurs w/ MCL … Read more
– Discussion: – dx is made when there is posterior instability on exam and a bone fragment was seen on x-ray; – MRI allows determination of the anatomy of the tear (ie femoral or tibial origin); – tibial avulsions: – tibial avulsions … Read more
– See: Posterior Approach to the Humerus; – Discussion: – considered to be the most versatile approach to the elbow; – most surgeons use straight longitudinal incision, which avoids olecranon tip, by shifting the incision slightly laterally or medially; – Variations of Posterior Approach: – Transolecranon Osteotomy … Read more
– Discussion: (see TKR menu) – posterior capsular ligament has three parts; (see posterior oblique ligament) – one overlies each femoral condyle and a third, shorter section passes between them; – these three parts normally limit extension provided that the depths of the prosthetic surfaces and the cement are … Read more
– Diff Dx: – Achilles Tendonitis – Achilles Tendinosis – Os Trigonum / Posterior Impingement – Posterior Talar Process Fracture – FHL Tendonitis – Peroneal Tendonitis – Tibialis Posterior Tendonitis – Deltoid Ligament Sprain – Osteochondral Lesions of … Read more
– See: Posterior Approach for Pelvic Frx – Indications for Use: – isolated posterior wall & posterior column frxs; – allows access to posterior column and posterior wall only, but exposure is limited proximally by superior gluteal vessels and greater trochanter; – isolated transverse frx (as well … Read more
– See: – Anterior Approach to Humerus – Posterior Approach to the Elbow; – Plate Fixation of the Humerus; – Indications: – Distal Third Humeral Fractures: – Humeral Mid-Shaft Frx are also amenable to the posterior approach if the formal approach is modified (see below); … Read more
– Discussion: – S shaped skin incision is made, extending along the posterior border of biceps and its tendon on the upper lateral side of popliteal fossa, then transversely across the fossa and finally along lower medial side of fossa posterior to semitendinosus tendon; – skin flaps are retracted and the … Read more
– Discussion: – commonly results from: – frx of throracolumbar spine treated non-operatively, esp when posterior ligamentous complex has been disrupted; – fractures treated by laminectomy w/o fusion (or w/ failed fusion); – children who have had extensive laminectomies, … Read more
– Radiographic Evaluation: – hyper-extension lateral view: – allows assessment of percentage of impingement by intercondylar roof; – a line is drawn thru the center of the tibial tunnel and a line is drawn tangential to the slope of the intercondylar roof; … Read more