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Early results of high-flex total knee arthroplasty: comparison study at 1 year after surgery

  • Knee
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Knee Surgery, Sports Traumatology, Arthroscopy Aims and scope

Abstract

We compared clinical [including maximal flexion and range of motion (ROM)] and radiographical outcomes of high-flex versus conventional implants for total knee arthroplasty (TKA) after 1 year. We also analyzed the factors affecting postoperative ROM in high-flex implants. The high-flex group (n = 90) had an average maximal flexion of 129.8° (standard deviation (SD), 5.2°) significantly higher than the 124.3° (SD, 9.2°) of the conventional group (n = 90), especially for patients with less than 90° of knee flexion (P < 0.05). There was no significant difference in hospital for special surgery (HSS) score between the two groups. No knee developed osteolysis, aseptic loosening, or other complications. We found that, for high-flex implants, preoperative ROM had a significant effect on postoperative ROM.

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Authors and Affiliations

  1. Department of Orthopedic Surgery, University of Ulsan, College of Medicine, Asan Medical Center, 388-1, Poongnap-2dong, Songpa-gu, Seoul, 138-736, South Korea

    Seong Il Bin & Tae Seok Nam

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  1. Seong Il Bin
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  2. Tae Seok Nam
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Correspondence to Seong Il Bin.

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Bin, S.I., Nam, T.S. Early results of high-flex total knee arthroplasty: comparison study at 1 year after surgery . Knee Surg Sports Traumatol Arthrosc 15, 350–355 (2007). https://doi.org/10.1007/s00167-006-0202-y

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  • DOI: https://doi.org/10.1007/s00167-006-0202-y

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