Investigation of multiligamentous knee injury patterns with associated injuries presenting at a level I trauma center.

J Orthop Trauma

R Adams Cowley Shock Trauma Center, Department of Orthopaedics, University of Maryland, Baltimore, MD, USA.

Published: April 2013

Objectives: To characterize multiligamentous knee injury patterns and describe associated morbidities.

Design: Retrospective.

Setting: Level I trauma center.

Patients: One hundred two patients (106 knees) with multiligamentous knee injuries and/or dislocations from 2000 through 2008. Subgroup of 82 knees with appropriate magnetic resonance images available assessed for ligamentous injury patterns.

Intervention: Data obtained from medical records for 106 knees.

Main Outcome Measurements: Presence of arterial injuries, nerve injuries, associated fracture patterns, and whole-body morbidities.

Results: The most common (43%) injury pattern was a combined disruption of the anterior cruciate ligament, posterior cruciate ligament, and posterolateral corner. Twenty-five percent of knees had associated ipsilateral tibial plateau fractures, and 19% had associated ipsilateral femoral fractures. Peroneal nerve injury occurred in 25% of knees, arterial injury in 21%, and compartment syndrome in 16%. An intra-abdominal injury was present in 13% of patients, a severe closed head injury in 10%, and a symptomatic pulmonary embolism in 5%.

Conclusions: Nearly half the multiligamentous knee injuries involved the anterior cruciate ligament, posterior cruciate ligament, and posterolateral corner; one-fourth had associated ipsilateral tibial plateau fractures. The incidence of peroneal nerve injury (25%) was higher than previously reported (20%), whereas the incidence of arterial injury (21%) was comparable to previous reports (19%). Posterolateral corner injuries were more prevalent than previously reported and were highly associated with peroneal nerve injury. We found a substantial incidence of associated morbidities of the whole body. Multiligamentous knee injuries are a marker of concomitant trauma and should be closely evaluated at presentation and during the hospital course to allow for early intervention for life- or limb-threatening comorbidities.

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Source
http://dx.doi.org/10.1097/BOT.0b013e318270def4DOI Listing

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