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Related Experiment Video

Updated: May 13, 2026

Reverse Total Shoulder Arthroplasty
10:10

Reverse Total Shoulder Arthroplasty

Published on: July 5, 2011

Simultaneous bilateral total knee arthroplasty. A multicenter feasibility study.

J-Y Jenny1, C Trojani, J-L Prudhon

  • 1Strasbourg University Hospital Group, Division of Ortopaedics and Hand Surgery, 10, avenue Baumann, 67400 Illkirch, France. jean-yves.jenny@chru-strasbourg.fr

Orthopaedics & Traumatology, Surgery & Research : OTSR
|March 8, 2013
PubMed
Summary
This summary is machine-generated.

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Simultaneous bilateral total knee arthroplasty (TKA) carries risks comparable to unilateral TKA. This procedure offers comparable complication rates and positive outcomes for selected patients with bilateral knee arthritis.

Area of Science:

  • Orthopedic Surgery
  • Biomedical Engineering

Background:

  • The safety and efficacy of simultaneous bilateral total knee arthroplasty (TKA) for patients with bilateral knee arthritis remain debated.
  • Existing literature presents conflicting views on the risks and outcomes associated with this surgical approach.

Purpose of the Study:

  • To evaluate the complication rates and clinical outcomes of simultaneous bilateral TKA compared to unilateral TKA.
  • To determine if simultaneous bilateral TKA leads to poorer functional results in patients with bilateral knee arthritis.

Main Methods:

  • Retrospective analysis of 123 patients who underwent simultaneous bilateral TKA across five high-volume centers between 2005 and 2011.
  • Mean follow-up duration of 33 months, with data collected on hospital stay, blood loss, transfusions, and patient-reported outcomes (IKS score).

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Last Updated: May 13, 2026

Reverse Total Shoulder Arthroplasty
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Reverse Total Shoulder Arthroplasty

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Main Results:

  • Mean hospital stay was 11 days, with a mean blood loss of 4.1 g/dL.
  • Postoperative transfusion was required in 55% of patients (mean 3.1 units).
  • Mean IKS score improved significantly, and 65% of patients would undergo the procedure again, with 57% recommending it.

Conclusions:

  • The study did not confirm an increased risk of complications for simultaneous bilateral TKA compared to unilateral procedures.
  • Complication rates were similar to those reported for unilateral TKA, suggesting the procedure is safe in selected cases.
  • The findings support the continued use of simultaneous bilateral TKA in appropriate patient populations.