Prospective randomized trial of standardversushighly crosslinked tibial polyethylene in primary posterior-stabilized total knee arthroplasty
| Autor: | J A O'Dell, Paul F. Lachiewicz |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
musculoskeletal diseases
030222 orthopedics medicine.medical_specialty Osteolysis business.industry Total knee arthroplasty Posterior stabilized medicine.disease Surgery law.invention 03 medical and health sciences 0302 clinical medicine Randomized controlled trial law Radiological weapon medicine Orthopedics and Sports Medicine 030212 general & internal medicine business |
| Zdroj: | The Bone & Joint Journal. :33-39 |
| ISSN: | 2049-4408 2049-4394 |
| DOI: | 10.1302/0301-620x.101b7.bjj-2018-1126.r2 |
| Popis: | AimsThere is insufficient evidence to recommend the use of alternative polyethylene bearings in modular, fixed-bearing total knee arthroplasty (TKA). The purpose of this study was to compare standard polyethylene (SP) and highly crosslinked polyethylene (XLP) tibial liners in posterior-stabilized TKA, with osteolysis as the primary outcome and clinical results and the rate of re-operation as the secondary outcomes.Patients and MethodsThis is a single-surgeon, prospective randomized study involving one design of modular posterior-stabilized TKA. An analysis of 122 TKAs with an SP compression moulded liner and 123 with an XLP liner was performed, with a mean follow-up of six years (2 to 11). Patients were evaluated clinically using the Knee Society score, Lower Extremity Activity Score (LEAS), and the presence of an effusion, and standard radiographs were assessed for radiolucent lines and osteolytic lesions.ResultsOsteolysis was present in four TKAs (3.3%) in the SP group, and no knees in the XLP group (p = 0.06). There were no significant differences between the Knee Society total score, change in total score, knee function score, change in function score, LEAS, and change in LEAS in the two groups. There was a significant difference in the presence of an effusion (10/122 with SP liners, 1/123 with XLP liners; p = 0.02). There was no significant difference in the rate of re-operation between the two groups (p = 0.36). There were no complications related to the XLP liner.ConclusionAt this length of follow-up, there were no advantages and no complications related to the use of this XLP tibial liner. The presence of effusion and small osteolytic lesions was more frequent with SP than XLP liners, but of unknown clinical significance. Cite this article: Bone Joint J 2019;101-B(7 Supple C):33–39 |
| Databáze: | OpenAIRE |
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