Unicompartmental knee arthroplasty for lateral compartment knee osteoarthritis: a credible surgical approach and short-term clinical outcomes.

Int Orthop

Department of Orthopaedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, People's Republic of China.

Published: October 2024

AI Article Synopsis

  • - The study investigated the benefits and outcomes of using the medial parapatellar approach for lateral unicompartmental knee arthroplasty (LUKA), involving 104 patients from August 2022 to June 2024.
  • - Key results showed significant improvements in range of motion, Oxford knee scores, and Hospital for Special Surgery knee scores after the procedure, with a high patient satisfaction rate of 95% at one month post-surgery.
  • - The medial parapatellar approach was found to be an effective and safe technique for LUKA, with no infections reported, although 16.3% of patients experienced deep vein thrombosis.

Article Abstract

Purpose: We aimed to investigate the technical advantages and clinical outcomes of lateral unicompartmental knee arthroplasty (LUKA) through the medial parapatellar approach.

Methods: From August 2022 to June 2024, 104 patients who underwent LUKA via the medial parapatellar approach were enrolled. The operation time, hospital stays, surgical complications and follow-up period were collected. Pre- and postoperative Range of movement (ROM), Oxford knee score (OKS) and Hospital for special surgery knee score (HSS) were recorded and further investigated by paired-samples t-test analysis.

Results: Primary demographic data of the retrospective case series collected include gender (30 males and 74 females), age (63.1 ± 8.37 years, range 49-84 years), operation time (86 ± 17 min, range 52-135 min), hospital stays (4.0 ± 1.1 days, range 3-8 days) and follow-up period (9.9 ± 5.7 months, range 1-23 months). There was a significant improvement in ROM (P < 0.001), OKS (P < 0.001) and HSS (P < 0.001) compared to preoperative values. Patient satisfaction at 1-month postoperative follow-up was up to 95%. The incidence of deep venous thrombosis was 16.3%. There was no incidence of postoperative infection.

Conclusion: The medial parapatellar approach is a understandable, easy to master and credible surgical approach for LUKA, showing a striking improvement in clinical outcomes without adverse events in the short-term follow-up.

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Source
http://dx.doi.org/10.1007/s00264-024-06303-4DOI Listing

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