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J Arthroplasty. 2007 Dec;22(8):1092-6.

The role of flexion contracture on outcomes in primary total knee arthroplasty.

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The Center for Hip and Knee Surgery, St. Francis Hospital, Mooresville, Mooresville, Indiana 46158, USA.


This study examined the role that flexion contracture plays in postoperative outcomes after total knee arthroplasty using a retrospective database review. The relationships between preoperative and postoperative knee extension, walking ability, stair climbing ability, Knee Society scores, pain scores, and knee function scores were studied in 5,622 knees. A preoperative flexion contracture was associated with an increased incidence of a persistent postoperative flexion deformity. A postoperative flexion contracture was associated with poorer postoperative results. Furthermore, a postoperative hyperextension deformity of greater than 10 degrees was associated with an increased risk of suboptimal pain and Knee Society scores. Knee extension deformities play a substantial detrimental role in the functional outcome of primary total knee arthroplasty.

[Indexed for MEDLINE]

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