Abstract
This report describes a unique case of bilateral total knee arthroplasty necessitating revision of the polyethylene insert, which showed prominent marks on the tibial post resulting from repeated seiza-style sitting. The patient presented 7 years postoperatively with knee pain and flexion disturbance due to continuous joint effusion persisting for more than 4 months. Proliferating synovia throughout the joint revealed reactive synovitis to polyethylene particles. The retrieved polyethylene inserts displayed double-concave deformity of the tibial post with burnishing and creep in tibiofemoral articulation. The damage pattern of retrieved polyethylene inserts reflected the data from tibiofemoral contact location obtained using a shape-matching technique in the early postoperative phase. This case provides an example of damage to the polyethylene tibial post caused by a floor-sitting lifestyle and the potential clinical sequelae.
Original language | English |
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Pages (from-to) | 497.e7-497.e10 |
Journal | Journal of Arthroplasty |
Volume | 25 |
Issue number | 3 |
DOIs | |
Publication status | Published - 04-2010 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Orthopedics and Sports Medicine