The subvastus approach to the knee.

J Knee Surg

Insall Scott Kelly Institute for Orthopaedics and Sports Medicine, Beth Israel Medical Center, New York, NY 10128, USA.

Published: January 2003

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Background: This study investigated changes in the Knee Injury and Osteoarthritis Outcome Score (KOOS), 2011 Knee Society Score (KSS), and minimal clinically important differences (MCIDs) of these scores preoperatively to 2 years after total knee arthroplasty (TKA).

Methods: This single-center retrospective study included 168 patients who underwent primary cruciate-retaining (CR) TKA using the subvastus approach. The KOOS and KSS were assessed preoperatively and during the 3-month, 6-month, 1-year, and 2-year follow ups.

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Background: Surgeons usually use the medial parapatellar or subvastus approaches for total knee arthroplasty (TKA). The subvastus approach is rapidly gaining recognition to reduce damage to the extensional mechanism and recover faster after surgery. This study compares the long-term outcomes of the conventional medial parapatellar and subvastus approaches in primary TKA during a minimum 10-year follow-up.

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Article Synopsis
  • Knee osteoarthritis (OA) often affects obese individuals, and total knee arthroplasty (TKA) is a treatment option that faces challenges in this population; the study explores the effectiveness of robotic-assisted TKA using the mini-subvastus approach for these patients.
  • The research involved 114 obese patients, assessing outcomes like pain reduction and knee function improvements post-surgery, with significant results indicating lower pain levels and higher knee scores after three and six months.
  • The findings suggest that this surgical method not only minimizes complications and enhances recovery time but also leads to an exceptional range of motion for the majority of patients within six months following the procedure.
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Comparison of early outcomes of primary total knee arthroplasties performed using subvastus and medial parapatellar approaches and evaluation of quadriceps muscle elastography.

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November 2024

Department of Orthopaedics and Traumatology, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Cerrahpaşa Tıp Fakültesi Yerleşkesi Kocamustafapaşa Caddesi No:53 Cerrahpaşa , Fatih, İstanbul, 34098, Turkey.

Article Synopsis
  • The study compares two surgical approaches for total knee arthroplasty: the medial parapatellar (MP) and subvastus (SV) approaches, focusing on if preserving the vastus medialis muscle during SV leads to better healing.
  • A total of 17 patients were divided into two groups for analysis, measuring clinical scores and using shear wave elastography (SWE) to assess tissue recovery before and after surgery.
  • Results indicated both approaches had similar clinical outcomes, with no significant differences in recovery times or muscle healing, suggesting either technique is effective for early outcomes in TKA surgery.
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