RELATIONSHIP BETWEEN PATELLAR HEIGHT AND RANGE OF MOTION AFTER TOTAL KNEE ARTHROPLASTY.

Authors :: Júnior LH
Soares LF
Gonçalves MB
Pereira ML
Lessa RR
Costa LP
Source :: Revista brasileira de ortopedia [Rev Bras Ortop] 2015 Nov 17; Vol. 46 (4), pp. 408-11. Date of Electronic Publication: 2015 Nov 17 (Print Publication: 2011).
Publication Year :: 2015
Abstract: Unlabelled: To evaluate whether, after total knee arthroplasty, there is any correlation between patellar height and range of motion (ROM) achieved by patients six months after the operation.<br />Methods: Forty-five patients who underwent total knee arthroplasty were assessed at least 12 months after the operation (total of 54 knees). The maximum and minimum ROM of all the knees was recorded under fluoroscopy, along with patellar height according to the Blackburne and Peel ratio. Two possible correlations were evaluated: patellar height and ROM; and patellar height and ROM variation from before to after the operation.<br />Results: A correlation was found between patellar height and postoperative ROM (p = 0.04). There was no correlation between patellar height and ROM variation (p = 0.182).<br />Conclusion: After total knee arthroplasty, the lower the patella is, the worse the ROM is.

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