Abstract
Objective: To comment on the learning curve regarding unicompartmental knee replacement by evaluating the outcomes of 33 patients, who were operated by a single surgeon between 2007 and 2010. Study Design: Retrospective Patients: A total of 33 patients, including 28 females and 5 males were assessed. The patients were divided into 4 groups so as to reflect the years in order to enable a comparison of the outcomes by year. The study groups didn’t exhibit any statistical difference with respect to age or the pre-operative Knee Society knee scores. Method: The patient groups were statistically compared for data on age, pre- and post-operative Knee Society knee scores, patients’ self assessments, the alignment of the prosthesis, infection, the duration of operation and the extent of hemorrhage. Results: There were no statistically significant differences between the study groups with respect to the presence of postoperative infection, the alignment of the prosthesis and the patients’ self assessments or the extent of hemorrhage. A statistically significant difference was observed in the duration of operation and the postoperative Knee Society knee scores over time; as the experience increased, the duration of operation was decreased and the knee scores improved. Implications: The results showed that a single surgeon could significantly shorten the duration of operation for knee replacement surgery and achieve clinically better outcomes within a 4 year period. These data demonstrate the presence of a learning curve in unicompartmental knee replacement surgery, which is spread over years.
References
- Atik OS. Unicompartmental or total knee arthroplasty? Eklem Hastalik Cerrahisi 2011; 22:118-9.
- Lygre SH, Espehaug B, Havelin LI, Furnes O, Vollset SE. Pain and function in patients after primary unicompartmental and total knee arthroplasty. J Bone Joint Surg Am 2010; 92:2890-7.
- Labek G, Thaler M, Janda W, Agreiter M, Stöckl B. Revision rates after total joint replacement: cumulative results from worldwide joint register datasets. J Bone Joint Surg Br 2011; 93:293-7.
- Hamilton WG, Ammeen D, Engh CA JR, Engh GA. Learning curve with minimally invasive unicompartmental knee arthroplasty. J Arthroplasty 2010; 25:735-40.
- Çınar BM, Akpınar S, Uysal M, Cesur N, Hersekli MA, Özalay M, Özkoç G. Unicondylar knee arthroplasty in medial unicompartmental osteoarthritis, technical faults and difficulties. Eklem Hastalik Cerrahisi 2010; 21:31-7.
- Sun PF, Jia YH. Mobile bearing UKA compared to fixed bearing TKA: A randomized prospective study. Knee. 2011;21. [Epub ahead of print]
- Heller S, Fenichel I, Salai M, Luria T, Velkes S. The Oxford unicompartmental knee prosthesis for the treatment of medial compartment knee disease: 2 to 5 year follow-up. Isr Med Assoc J 2009;11:266-8.
- Rees JL, Price AJ, Beard DJ, Dodd CA, Murray DW. Minimally invasive Oxford unicompartmental knee arthroplasty: functional results at 1 year and the effect of surgical inexperience. Knee 2004;11:363-7.
- Shakespeare D,Ledger M,Kinzel V,Accuracy of implantation of components in the Oxford knee using the minimal invasive approch. Knee 2005;12:405-9.
Abstract
Amaç: 2007-2010 yılları arasında tek cerrahın yaptığı 33 vakanın sonuçlarını değerlendirerek unikompartmantal diz protezlerinde öğrenme eğrisini yorumlamak. Hastalar ve Yöntem: Unikompartmantal diz protezi uygulanan 28’i kadın 5’i erkek 33 hasta değerlendirilmiştir. Hastalarımız, sonuçları zamana göre kıyaslayabilmek için yılları da yansıtacak şekilde 4 gruba bölünmüştür. Hasta grupları arasında yaş ve ameliyat öncesi Knee Society diz skoru açısından istatistiksel farklılık bulunmamaktadır. Hasta grupları; yaş, ameliyat öncesi ve sonrası Knee Society diz skoru, hastaların kişisel değerlendirmeleri, protez dizilimi, enfeksiyon, ameliyat süresi, kanama miktarı verileri doğrultusunda istatistiksel olarak karşılaştırılmıştır. Sonuçlar: Gruplar arasında ameliyat sonrası enfeksiyon varlığı, protez yerleşimi ve hastaların kendi ameliyatlarını kişisel olarak değerlendirmeleri, kanama miktarı arasında istatistiksel olarak anlamlı farklılık gözlenmemiştir. Ameliyat süresi ve ameliyat sonrası Knee Society diz skorları arasında ise ilerleyen yıllar içinde istatistiksel anlamlı fark gözlenmiş tecrübe arttıkça ameliyat süresi kısalmış diz skorları iyileşmiştir. Çıkarımlar: Dört yıllık süreç içinde tek cerrahın unikompartmantal diz protezi ameliyatlarında ameliyat süresini anlamlı olarak kısaltabildiği ve klinik olarak daha yüz güldürücü sonuçlar alabildiği gözlemlenmiştir. Bu veriler unikompartmantal diz protezi ameliyatlarında yıllara yayılan bir öğrenme eğrisinin varlığını göstermektedir.
Keywords
References
- Atik OS. Unicompartmental or total knee arthroplasty? Eklem Hastalik Cerrahisi 2011; 22:118-9.
- Lygre SH, Espehaug B, Havelin LI, Furnes O, Vollset SE. Pain and function in patients after primary unicompartmental and total knee arthroplasty. J Bone Joint Surg Am 2010; 92:2890-7.
- Labek G, Thaler M, Janda W, Agreiter M, Stöckl B. Revision rates after total joint replacement: cumulative results from worldwide joint register datasets. J Bone Joint Surg Br 2011; 93:293-7.
- Hamilton WG, Ammeen D, Engh CA JR, Engh GA. Learning curve with minimally invasive unicompartmental knee arthroplasty. J Arthroplasty 2010; 25:735-40.
- Çınar BM, Akpınar S, Uysal M, Cesur N, Hersekli MA, Özalay M, Özkoç G. Unicondylar knee arthroplasty in medial unicompartmental osteoarthritis, technical faults and difficulties. Eklem Hastalik Cerrahisi 2010; 21:31-7.
- Sun PF, Jia YH. Mobile bearing UKA compared to fixed bearing TKA: A randomized prospective study. Knee. 2011;21. [Epub ahead of print]
- Heller S, Fenichel I, Salai M, Luria T, Velkes S. The Oxford unicompartmental knee prosthesis for the treatment of medial compartment knee disease: 2 to 5 year follow-up. Isr Med Assoc J 2009;11:266-8.
- Rees JL, Price AJ, Beard DJ, Dodd CA, Murray DW. Minimally invasive Oxford unicompartmental knee arthroplasty: functional results at 1 year and the effect of surgical inexperience. Knee 2004;11:363-7.
- Shakespeare D,Ledger M,Kinzel V,Accuracy of implantation of components in the Oxford knee using the minimal invasive approch. Knee 2005;12:405-9.
Details
| Primary Language | Turkish |
|---|---|
| Journal Section | Research Article |
| Authors | |
| Publication Date | March 1, 2013 |
| Published in Issue | Year 2013Issue: 1 |