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Patella dislocation - ligament Observation •...

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Learning Issue: patellar Instability (dislocation) Name: Michael Holmes efinition Patellofemoral instability and malalignment indicates that the patella is tilted laterally or predisposed to lateral subluxation,, usually because of one or more anatomical factors. Patellar subluxation and dislocation may occur with minimal trauma, patella alta, a shallow trochlear groove, a relatively flat patellar undersurface, a laterally tipped patella, laxity in ligaments, and hypermobility of patella. ifferential ACL tear, MCL tear, medial menisci tear, petallofemoral pain syndrome athophysi Subluxation or dislocation causes tearing of the medial retinaculum and medial patellofemoral ligament, leading to pain, hemarthrosis, and loss of knee motion. gns and Symptom Symptoms Pain, hearing a pop Signs Deformity in knee look for physical Special tests Patellar apprehension Palpation Tenderness on medial retinaculum Tenderness proximal to medial femoral epicondyle (Medial Patellofemoral
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Unformatted text preview: ligament) Observation • Malalignment (genu valgum, femoral anteversion, tibial torsion, patella alta) iagnostic Testing X-ray • AP, Lateral, and axial patellofemoral views are necessary edication Treatmen Acute • Compressive dressing • Splint with knee in extension • Aspiration with significant effusion First 24 hours • Oral analgesics • Ice • Modified weight bearing Evaluate every 2 weeks • Progressive therapy 6 weeks • End immobilization • Removal of loose bodies if present on radiograph Surgery • If conservative treatment fails uestions Patient Describe the MOI, did you hear a pop, and do you have knee pain? relates to Patient has knee pain following a football injury. 1. Sources: Griffin LY. Essentials of Musculoskeletal Care. 3rd ed.: American Academy of Orthopaedic Surgeons.; 2005: 541-545....
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Patella dislocation - ligament Observation •...

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