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Semin Musculoskelet Radiol 2016; 20(01): 043-051
DOI: 10.1055/s-0036-1579711
Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.

Rupture of the Posterior Cruciate Ligament: Preoperative and Postoperative Assessment

Anagha P. Parkar
1   Department of Radiology, Haraldsplass Deaconess Hospital, Bergen, Norway
,
Andrea Alcalá-Galiano
2   Department of Radiology, University Hospital 12 de Octubre, Madrid, Spain
› Institutsangaben
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Publikationsdatum:
14. April 2016 (online)

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Abstract

Posterior cruciate ligament (PCL) ruptures are not common, but reconstruction is increasing because PCL-deficient knees are prone to develop osteoarthritis. Preoperative MRI may confirm a total or partial disruption of PCL fibers. An overstretched PCL is often mistaken for an intact PCL while the knee is functionally PCL deficient, resulting in false-negative MRI reports. Posterior translation of the medial condyle is a useful indirect sign on imaging. Preoperative stress radiographs are used to quantify the degree of PCL deficiency, and posterior translation determines whether to treat conservatively or with surgery. Early postoperative imaging is performed to evaluate tunnel placement and fixation devices. Late postoperative imaging is performed to assess graft rupture, arthrofibrosis, or tunnel widening. Pre- and postoperative imaging plays an important part in planning and treating functionally PCL-deficient knees and PCL ruptures.

Keywords

PCL rupture - stress radiographs - postoperative imaging - CT - MRI
 

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