Trial reportDer Orthopade2022
Two-surgeon simultaneous bilateral total knee arthroplasty does not provide poor prosthetic alignment : A prospective randomized controlled study.
Trial report in Der Orthopade, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Authors and funding
6 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
purposeTwo-surgeon, simultaneous bilateral total knee arthroplasty (TKA) is considered as an unpredictable, complex procedure in terms of its radiographic and functional outcomes because of different surgeons and teams, and too many instruments and hands in a narrow space. We compared radiological and functional results of simultaneous bilateral TKA and single-surgeon sequential bilateral TKA.
methodsThe 136 participants with a minimum of 24 months follow-up were prospectively randomized into 2 groups: two-surgeon bilateral TKA and single-surgeon bilateral TKA. We prespecified primary outcome of the study as between-group differences in terms of component alignment in the coronal and sagittal planes. Short-term functional outcomes were evaluated prospectively using the Oxford Knee Score (OKS) and Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC).
resultsEach group consisted of 136 knees of 68 patients. The mean tibial medial angles (TMA) were 89° ± 3 ° and 88° ± 5° in two-surgeons and single surgeon groups, respectively (p = 0.24). Radiological outcomes showed that the mean femoral lateral angles (FLA) were 87.9 ± 3.5° and 85.84 ± 3.7° (p = 0.12), posterior tibial slope angles (PTSA) were 8.2 ± 16.9° and 7.6 ± 17.8° (p = 0.84), and femoral flexion angles (FFA)were 86.8 ± 3.8° and 86.3 ± 3.5° (p = 0.41), anterior femoral offset ratios (AFOR) (%) were 29.5 ± 11.1 and 27.7 ± 7.9 (p = 0.31), and posterior femoral offset ratio (PFOR) (%) were 108.41 ± 31.3 and 108.45 ± 25.7 (p = 0.98), respectively.
conclusionTwo-team simultaneous bilateral TKA is as safe as single stage one-surgeon sequential bilateral TKA in terms of short-term component radiological and the functional outcomes.
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