Relationship between range of motion and femoral rollback in total knee arthroplasty
Abstract
Methods: The study included 38 knees of 31 patients (26 female and 5 male) with primary knee arthrosis who underwent TKA. The posterior cruciate ligament (PCL) was sacrificed in 24 knees in the PS group and preserved in 14 in the CR group. Mean follow-up was 30.6 months. Patients were submitted to fluoroscopic lateral evaluation for ROM and femoral rollback assessment.
Results: Average ROM of the CR group was 106.43±9º and 105.43±11.7º for the PS group (p=0.78). Average femoral rollback was 10.5±9.7 mm and was significantly lower in the CR group (5.8±6.5 mm) than the PS group (13.2±10.5 mm) (p=0.026615). While there was no correlation between the femoral rollback and ROM for CR prostheses (p=0.78 and r=0.8), there was a significant correlation for PR prostheses (p=0.01 and r=0.49) with regression pointing to an increase of 0.545 degrees ROM for each unit of femoral rollback.
Conclusion: Despite increase in femoral rollback and its relation with ROM in PS TKA, there were no differences in ROM between CR and PS TKA.
Keywords
References
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Details
Primary Language
English
Subjects
Health Care Administration
Journal Section
Research Article
Authors
Lúcio Honório de Carvalho Jr
This is me
Eduardo Frois Temponi
This is me
Luiz Fernando Machado Soares
This is me
Matheus Jacques Braga Gonçalves
This is me
Publication Date
March 14, 2014
Submission Date
April 13, 2014
Acceptance Date
-
Published in Issue
Year 2014 Volume: 48 Number: 1