Outcome in total knee arthroplasty with a medial-lateral balanced versus unbalanced gap
PurposeTo evaluate the clinical outcome in 108 total knee arthroplasty (TKA) patients with a medial-lateral balanced versus unbalanced gap after a mean follow-up of 34 months.Methods64 women and 44 men (mean age, 69.5 years) underwent computer-assisted TKA for osteoarthritis using a cemented fixed-b...
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| Hauptverfasser: | , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
December 2016
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| In: |
Journal of orthopaedic surgery
Year: 2016, Jahrgang: 24, Heft: 3, Pages: 298-301 |
| ISSN: | 2309-4990 |
| DOI: | 10.1177/1602400305 |
| Online-Zugang: | Verlag, Volltext: http://dx.doi.org/10.1177/1602400305 Verlag, Volltext: https://doi.org/10.1177/1602400305 
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| Verfasserangaben: | Ahmed Jawhar, Karolin Hutter, Hanns-Peter Scharf |
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| 520 | |a PurposeTo evaluate the clinical outcome in 108 total knee arthroplasty (TKA) patients with a medial-lateral balanced versus unbalanced gap after a mean follow-up of 34 months.Methods64 women and 44 men (mean age, 69.5 years) underwent computer-assisted TKA for osteoarthritis using a cemented fixed-bearing cruciate-retaining prosthesis. The medial-lateral gap difference (measured with the prosthesis in situ and the patella reduced) was balanced (≤2 mm) in 81 patients and unbalanced (>2 mm) in 27 patients. After a mean follow-up of 34 months, patients were assessed using the Western Ontario and McMaster Universities Arthritis Index (WOMAC) questionnaire for pain, stiffness, and physical function. Scores were normalised to 0% (worst) to 100% (best).ResultsThe balanced and unbalanced gap groups were comparable in terms of age, severity of osteoarthritis, and proportion of pre- and postoperative mechanical alignment. Compared with the balanced gap group, the unbalanced gap group had a larger medial-lateral extension gap difference (0.75±0.57 vs. 2.02±1.15 mm, p=0.001) and medial-lateral flexion gap difference (0.79±0.63 vs. 2.98±2.13 mm, p=0.001) and lower normalised total WOMAC score (84.9±18 vs. 74.8±20.8, p=0.017).ConclusionWOMAC score is better in TKAs with a medial-lateral balanced (<2 mm) gap. | ||
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