Long-Term (Up to 27 Years) Prospective, Randomized Study of Mobile-Bearing and Fixed-Bearing Total Knee Arthroplasties in Patients <60 Years of Age With Osteoarthritis.

The Journal of Arthroplasty
Young-Hoo KimYoung-Soo Jang

Abstract

Our study determined long-term (up to 27 years) results of fixed-bearing vs mobile-bearing total knee arthroplasties (TKAs) in patients <60 years with osteoarthritis. This study included 291 patients (582 knees; mean age 58 ± 5 years), who received a mobile-bearing TKA in one knee and a fixed-bearing TKA in the other. The mean duration of follow-up was 26.3 y (range 24-27). At the latest follow-up, the mean Knee Society knee scores (91 ± 9 vs 89 ± 11 points, P = .383), Western Ontario and McMaster Universities Osteoarthritis Index (35 ± 7 vs 37 ± 6 points, P = .165), range of knee motion (128° ± 13° vs 125° ± 15°, P = .898), and University of California, Los Angeles activity score (6 ± 4 vs 6 ± 4 points, P = 1.000) were below the level of clinical significance between the 2 groups. Revision of mobile-bearing and fixed-bearing TKA occurred in 16 (5.5%) and 20 knees (6.9%), respectively. The rate of survival at 27 years for mobile-bearing and fixed-bearing TKA was 94.5% (95% confidence interval 89-100) and 93.1% (95% confidence interval 88-98), respectively, and no significant differences were observed between the groups. Osteolysis was identified in 4 knees (1.4%) in each group. There were no significant differences in functiona...Continue Reading

References

Apr 1, 1997·The Journal of Bone and Joint Surgery. American Volume·D R DiduchD Font-Rodriguez
May 1, 1997·Clinical Orthopaedics and Related Research·L R JordanP E Voorhorst
Jan 8, 1999·The Journal of Arthroplasty·C A ZahiriH C Amstutz
Dec 2, 2008·The Journal of Bone and Joint Surgery. British Volume·D F DaluryM W Roche
Apr 2, 2010·Clinical Orthopaedics and Related Research·Young-Hoo KimJun-Shik Kim
Aug 3, 2012·The Journal of Bone and Joint Surgery. American Volume·Young-Hoo KimJun-Shik Kim
Dec 29, 2016·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Alejandro Lizaur-UtrillaFernando A Lopez-Prats

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Citations

Nov 16, 2021·The Journal of Bone and Joint Surgery. American Volume·Jesus M VillaCarlos A Higuera-Rueda

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