– 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
– Discussion: – includes lamina, pedicles, spinous processes, including supraspinous and intraspinous ligaments, ligamentum flavum, & facet capsules; – Clay Shoveler’s fx – Ligamentous Instability: – consists of combined role of right & left Facet Joint & lateral masses in resisting compression; – ligamentous complex in posterior motion segment resists … 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: – AP view – Carpal height & Carpal height ratio – Clenched Fist AP – Radial Inclination – Radial Length & Width – Ulnar Variance – X-ray for Distal Radius Frx – Discussion: – AP View is prefered for … Read more
– See: Multisegmented Hook Instrumentation – Discussion: – reduction of retropulsed bone from the canal requires that posterior longitudinal ligament be intact to provide tension; – when distracted, ligament pulls bone out of the canal anteriorly toward the body; – this technique is generally … 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 deep fascia is incised … Read more
– Discussion: – evaluation of the painful hip replacement and exam for THR loosening: – heterotopic ossification: – post op AP & lateral x-rays should include entire length of stem & cement mass; – femur and cement column are inspected carefully and compared w/ previous films for changes indicating component loosening, stem … 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