Abstract
Background: Total knee arthroplasty has been considered as a standard procedure for intractable pain in the end-stage degenerative arthritis of the knee and maintaining range of motion (ROM) to facilitate the ability to perform daily living activities. A majority of studies have reported that the influence of PTS on the range of motion, however controversy exists. Methods: Two hundred patients (400 knees) who underwent simultaneous or staged bilateral knee replacements and who met our inclusion criteria were included for this study. The pre-operative and post-operative knee ROM and PTS were recorded for each patient. Patients followed up at regular interval with minimum follow up of one year. Results: 200 patients that is, 400 knees who underwent posteriorly stabilised TKA were considered. Respective mean ROM and PTS were 106 0 and 7.8 0 preoperatively and 128 0 and 5.7 0 postoperatively. We divided the patients in to group A (post-operative PTS ≤8 0 ) 346 knees, and group B (postoperative PTS >8 0 ) 54 knees and analysed the relation between PTS and ROM. Conclusions: Change in PTS does not have influence on postoperative ROM in posteriorly stabilised TKA. Preoperative range of motion has got significant effect on post op range of motion following TKA.
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