Acute lateral dislocation of the patella: correlation of ultrasound scanning with operative findings

Trikha, S. P.; Acton, D.; O'reilly, M. A. R.; Curtis, Mark J.; Bell, Jonathan

doi:10.1016/s0020-1383(02)00382-0

Cited by 37 publications

(17 citation statements)

References 10 publications

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“…20 Acutely, osteochondral and chondral fractures of the medial facet of the patella and/or the lateral femoral condyle can be a common finding on radiographs, MRI, ultrasound, arthroscopy, and open procedures (Figs 1-4). 5,12,16,18,23,38,46,49,52,55,56,64,65,67,68 The incidence of articular cartilage injuries and osteochondral fractures based on arthroscopy and open procedures is much more prevalent than found on initial radiographs. 42,49,64 Over the long term, acute patellar dislocations can result in patellar instability, pain, recurrent dislocations, decreased level of sporting activity, and patellofemoral arthritis.…”

mentioning

confidence: 99%

First-time Traumatic Patellar Dislocation

Stefancin

Parker²

2007

Clinical Orthopaedics and Related Research

432

364

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Acute patellar dislocations can result in patellar instability, pain, recurrent dislocations, decreased level of sporting activity, and patellofemoral arthritis. The initial management of a first-time traumatic patellar dislocation is controversial with no evidence-based consensus to guide decision making. Most first-time traumatic patellar dislocations have been traditionally treated nonoperatively; however, there has been a recent trend in initial surgical management. We performed a systematic review of Level I-IV studies to make evidence-based medicine recommendations on how a clinician should approach the diagnosis and treatment of a first-time traumatic dislocation. More specifically we answer the primary question of when initial treatment should consist of operative versus closed management. Based on the review of 70 articles looking at study design, mean followup, subjective and validated outcome measures, redislocation rates, and long-term symptoms, we recommend initial nonoperative management of a first-time traumatic dislocation except in several specific circumstances. These include the presence of an osteochondral fracture, substantial disruption of the medial patellar stabilizers, a laterally subluxated patella with normal alignment of the contralateral knee, or a second dislocation, or in patients not improving with appropriate rehabilitation.

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confidence: 99%

First-time Traumatic Patellar Dislocation

Stefancin

Parker²

2007

Clinical Orthopaedics and Related Research

432

364

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“…14 The effectiveness of ultrasonography to evaluate the medial stabilizers of the knee has been well documented, where the medial retinaculum appears as a distinct fibrillar echogenic structure with a bilaminar or trilaminar appearance. [15][16][17] Magnetic resonance imaging is also frequently used in the evaluation of patellar dislocation and associated injury to the medial stabilizing structures. 1,18 Other injuries frequently manifested on imaging include hemarthrosis, bone contusion of the anterolateral aspect of the lateral femoral condyle, and the inferomedial patella.…”

Section: Discussionmentioning

confidence: 99%

Patellar Dislocation in a 16-Year-Old Athlete With Femoral Trochlear Dysplasia

Cho

Haun

Morrell

et al. 2009

Journal of Manipulative and Physiological Therapeutics

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“…MRI is not always readily available, and in our unit we have recently shown that ultrasound shows the state of the soft tissue restraints of the patella following lateral dislocation. 10 In this case, no further imaging was sought as there was a clear anatomical abnormality warranting operatic repair.…”

Section: Discussionmentioning

confidence: 99%