Normal and acutely torn posterior cruciate ligament of the knee at US evaluation: preliminary experience
| Autor: | Bok-Hwan Park, Jose Antonio Bouffard, Rethy K. Chhem, Kil Ho Cho, Étienne Cardinal, Se-Dong Kim, Dong Chul Lee |
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| Rok vydání: | 2001 |
| Předmět: |
Adult
Male medicine.medical_specialty Adolescent Knee Joint Physical examination Knee Injuries Diagnostic aid Asymptomatic Lower limb Posterior margin medicine Humans Radiology Nuclear Medicine and imaging Ultrasonography medicine.diagnostic_test business.industry technology industry and agriculture Magnetic resonance imaging Middle Aged equipment and supplies musculoskeletal system Mr imaging Magnetic Resonance Imaging Surgery medicine.anatomical_structure Posterior cruciate ligament Acute Disease Female Posterior Cruciate Ligament medicine.symptom Nuclear medicine business |
| Zdroj: | Radiology. 219(2) |
| ISSN: | 0033-8419 |
| Popis: | To determine the ultrasonographic (US) findings of normal and acutely torn posterior cruciate ligament (PCL) of the knee and evaluate the usefulness of US in the injured PCL.US images were obtained in 30 knees in 15 asymptomatic volunteers as a control group and in 35 patients clinically suspected of having an acute PCL injury. Only the distal half of the PCL was evaluated. Of the 35 patients, 28 had their PCL status confirmed: 13 had a normal PCL at magnetic resonance (MR) imaging plus clinical examination, and 15 had a torn PCL at either MR imaging and surgery or MR imaging and clinical follow-up.Normal PCLs were homogeneously hypoechoic, with a well-defined posterior border. Torn PCLs were heterogeneously hypoechoic (12 [80%] of 15 patients), with an indistinct posterior margin (11 [73%] of 15 patients). Torn PCLs were significantly thicker (range, 12.0-20.0 mm; mean, 15.6 mm +/- 2.5 [SD]; P.01), as compared with normal PCLs in 13 patients (range, 3.8-5.8 mm; mean, 4.6 mm +/- 1.0; P.01) and in the volunteers (range, 3.7-6.2 mm; mean, 4.5 mm +/- 1.2; P.01).An acutely torn PCL thickens (10 mm), loses its sharply defined posterior border, and has a heterogeneously hypoechoic appearance. US may be useful as a screening examination for patients suspected of having PCL injury and for deciding whether to perform more expensive MR imaging or surgical intervention. |
| Databáze: | OpenAIRE |
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