Journals / Journal of Surgery and Medicine / 2020 / Cilt: 4 - Sayı: 7

Does the overhang of tibial component in fixed bearing medial unicondylar knee arthroplasty affect 1-year results?

Sabit tip medial unikondiler diz artroplastisinde tibial komponentin kemik yüzeyden taşması 1 yıllık sonuçları etkiler mi?

Pages
519–522
Publication Date
2020-07-01
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Nevertheless, the sizing of the component should be checked by adequate means.

📌 3 Key Takeaways

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Objective & Hypothesis:Aim: Unicondylar knee arthroplasty (UKA) is an effective treatment for single-compartment knee arthrosis.
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Key Findings & Data:With this study we aimed to investigate the effect of size concordance of the tibial component and bone in fixed bearing UKA on functional scores and pain.Methods: Demographic data, preoperative and postoperative 1-year visual analog pain scale (VAS) and Oxford Knee Scores (OKS) were collected from 43 patients operated by a single surgeon with a fixed bearing UKA implant (Zimmer UKA, Warsaw USA) for this prospective cohort study.
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Conclusion & Impact:Nevertheless, the sizing of the component should be checked by adequate means.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Unikondiler · Diz · Artroplasti

Abstract

Aim: Unicondylar knee arthroplasty (UKA) is an effective treatment for single-compartment knee arthrosis. The compatibility of the size of the components with the bone is one of the factors determining patient satisfaction. With this study we aimed to investigate the effect of size concordance of the tibial component and bone in fixed bearing UKA on functional scores and pain.Methods: Demographic data, preoperative and postoperative 1-year visual analog pain scale (VAS) and Oxford Knee Scores (OKS) were collected from 43 patients operated by a single surgeon with a fixed bearing UKA implant (Zimmer UKA, Warsaw USA) for this prospective cohort study. Patients were then grouped according to radiological compliance of the tibial component to the bone as perfect match or overhang, and the groups were compared in terms of pain and functional scores. Results: Among 43 patients included in the study, 9 (20.9%) were males and 34 (79.1%) were females. The mean age of the patients was 62.1 (8.1) years. The median VAS and OKS scores of the patients before surgery were 6 (3-8) and 26 (21-30), respectively. Postoperatively, VAS score decreased to 1 (0-2), while OKS increased to 44 (37-48) (P<0.001 for both). There were only 3 patients with underhang. Twenty-two (52.1%) patients had perfect match and 18 (41.9%) had an overhang from the bone surface. There was no patient with an overhang greater than 3mm. The VAS and OKS scores at post-operative 1-year of 18 patients with overhang and 22 patients without bone overhang were similar (P=0.674 and P=0.873, respectively).Conclusion: The overhang of the tibial component in fixed bearing unicondylar knee arthroplasty is common, however, this does not affect functional results in 1-year follow-up. Nevertheless, the sizing of the component should be checked by adequate means.

Özet

Amaç: Unikondiler diz artroplastisi (UDA) tek kompartman artrozunda etkinliği kanıtlanmış bir tedavidir. Kemik ile implant bileşenlerinin uyumu hasta memnuniyetini etkileyen faktörlerden biridir. Bu çalışma ile kemik ve tibial bileşen uyumunun ağrı ve fonksiyon skorları üzerindeki etkisini incelemeyi amaçladık. Yöntemler: Bu prospektif kohort çalışmasında tek cerrah tarafından opere edilmiş 43 sabit tip UDA (Zimmer UKA, Warsaw, ABD) hastasının demografik verileri, cerrahi öncesi ve cerrahi sonrası birinci yıldaki vizüel analog ağrı skalası (VAS) ve Oxford Knee Score (OKS) sonuçları incelenmiştir. Hastalar radyolojik olarak kemik yüzey ile implantın uyumuna göre mükemmel uyum ve taşma olarak gruplanmıştır. Ardından grupların ağrı ve fonksiyon skorları karşılaştırılmıştır. Bulgular: İncelenen 43 hastanın 9’u (%20,9) erkek ve 34’ü (%79,1) kadındır. Ortalama yaş 62,1 (8,1) yıldı. Cerrahi öncesi VAS ve OKS ortanca değerleri sırasıyla 6 (3-8) ve 26 (21-30) idi. Cerrahi sonrasında VAS 1’e (0-2) düşerken OKS 44’e (37-48) yükselmiştir (her ikisi için P<0,001). Sadece 3 hastada implant kemikten daha küçüktü. 22 (%52,1) hastada kemik ile protez arasında tam uyum mevcuttu. 18 (%41,9) hastada ise kemik yüzeyden taşma izlenmiştir, ancak bu hastalardan hiçbirinde fark 3 mm’den fazla değildir. Mükemmel uyum ve taşma grubunun cerrahiden sonraki birinci yıl VAS ve OKS sonuçları karşılaştırıldığında anlamlı bir fark olmadığı görülmüştür (sırasıyla P=0,674 ve P=0,873). Sonuç: Sabit tip unikondiler diz artroplastisinde taşma sık görülürken bunun cerrahi sonrası birinci yıl ağrı ve fonksiyonel sonuçlar üzerinde bir etkisi yoktur. Yine de implant seçimi yapılırken taşmanın önüne geçmek için gerekli önlemler alınmalıdır.

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Cite This Article

KOCAOĞLU, H. (2020). Does the overhang of tibial component in fixed bearing medial unicondylar knee arthroplasty affect 1-year results?. Journal of Surgery and Medicine, Cilt: 4 - Sayı: 7, 519–522. https://ajindex.com/articles/780289

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References (6)

  1. Murray DW, Parkinson RW. Usage of unicompartmental knee arthroplasty. Bone Jt J. 2018;100-B:432–5
  2. Winnock de Grave P, Barbier J, Luyckx T, Ryckaert A, Gunst P, Van den Daelen L. Outcomes of a Fixed-Bearing, Medial, Cemented Unicondylar Knee Arthroplasty Design: Survival Analysis and Functional Score of 460 Cases. J Arthroplasty. 2018;33(9):2792–9. doi: 10.1016/j.arth.2018.04.031 3. Alnachoukati OK, Barrington JW, Berend KR, Kolczun MC, Emerson RH, Lombardi AV, Mauerhan DR. Eight Hundred Twenty-Five Medial Mobile-Bearing Unicompartmental Knee Arthroplasties: The First 10-Year US Multi-Center Survival Analysis. J Arthroplasty. 2018;33(3):677–83. doi: 10.1016/j.arth.2017.10.015 4. Emerson RH, Alnachoukati O, Barrington J, Ennin K. The results of Oxford unicompartmental knee arthroplasty in the United States. J BONE Jt Surg. 2006;34–40
  3. Chou DTS, Swamy GN, Lewis JR, Badhe NP. Revision of failed unicompartmental knee replacement to total knee replacement. Knee. 2012 Aug;19(4):356–9
  4. Kamenaga T, Hiranaka T, Kikuchi K, Hida Y, Fujishiro T, Okamoto K. Influence of tibial component rotation on short-term clinical outcomes in Oxford mobile-bearing unicompartmental knee arthroplasty. Knee. 2018;25(6):1222–30. doi: 10.1016/j.knee.2018.06.016 7. Nielsen CS, Nebergall A, Huddleston J, Kallemose T, Malchau H, Troelsen A. Medial Overhang of the Tibial Component Is Associated With Higher Risk of Inferior Knee Injury and Osteoarthritis Outcome Score Pain After Knee Replacement. J Arthroplasty. 2018;33(5):1394–8. doi: 10.1016/j.arth.2017.12.027 8. Simsek ME, Akkaya M, Gursoy S, Isik C, Zahar A, Tarabichi S, Bozkurt M. Posterolateral overhang affects patient quality of life after total knee arthroplasty. Arch Orthop Trauma Surg. 2018;138(3):409–18. doi: 10.1007/s00402-017-2850-4 9. Tuğay BU, Tuğay N, Güney H, Kinikli GI, Yüksel I, Atilla B. Oxford knee score: Cross-cultural adaptation and validation of the turkish version in patients with osteoarthritis of the knee. Acta Orthop Traumatol Turc. 2016;50(2):198–206
  5. Fitz W, Bliss R, Losina E. Current fit of medial and lateral unicompartmental knee arthroplasty. Acta Orthop Belg. 2013;79(2):191–6
  6. Kennedy JA, Palan J, Mellon SJ, Esler C, Dodd CAF, Pandit HG, Murray DW. Most unicompartmental knee replacement revisions could be avoided: a radiographic evaluation of revised Oxford knees in the National Joint Registry. Knee Surgery, Sport Traumatol Arthrosc. 2020; doi: 10.1007/s00167-020-05861-5 12. Chau R, Gulat