Results of the First Fifty Minimally Invasive Oxford Unicompartmental Knee Arthroplasty

Song, Moo Ho; Kim, Bu-Hwan; Ahn, Seong-Jun; Yoo, Seong Yul; Park, Jongha

doi:10.4055/jkoa.2007.42.4.515

Cited by 2 publications

(1 citation statement)

References 23 publications

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“…1,2) 반면 실수의 허용범위가 전치환술에 비해 좁으므로 수술하기가 좀 더 어렵고, 내측 경골 과 골절, 그리고 가동형의 경우 삽입물 탈구 등과 같은 심각한 합 병증은 슬관절 부분치환술의 단점으로 지적되고 있다. 11) 국내에서는 최근 가동형 인공슬관절인 Oxford Uni ® 의 결과에 대 한 몇몇 보고들이 있으나, 5,11,12) "This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited." 경골 스템을 이용하였다 (Fig.…”

Section: 색인단어: 퇴행성 골관절염 고정형 슬관절 부분치환술unclassified

Short-Term Outcomes of Miller Galante® Fixed-Bearing Unicondylar Knee Arthroplasty: A Comparative Study in Outcomes according to Postoperative Correction Angle

Jung

Song

Seon

et al. 2010

J Korean Orthop Assoc

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To evaluate short-term clinical and radiographical results of fixed bearing unicondylar knee arthroplasty (UKA) comparing results between over-corrected group and under-corrected group. Materials and Methods: Clinical and radiographical outcomes of 47 Miller-Galante ® UKAs with a minimum of 4-year follow-up were evaluated. We also compared both clinical and radiographical results between over and under corrected groups, which were divided by 2 o varus of mechanical axis postoperatively. Results: HSS and WOMAC scores improved from 75.4 and 57.7 preoperatively to respectively, 95.2 and 12.1 at the last follow up. Radiographically, the mechanical axis changed from 7.2 o varus preoperatively to 2.8 o varus at the last follow-up. A partial radiolucent line on the medial side of the tibia was observed in 23% of the 47 cases. Degenerative changes in the lateral compartment and the patellofemoral joint were observed, respectively, in 23% and 26%. There were no significant differences between the two groups in clinical and radiographical results (p>0.05). In the undercorrected group, three cases converted to total knee arthroplasty because of medial tibial collapse. Conclusion: Miller-Galante ® UKA showed good outcomes in short-term follow-up with the exception of three failures. There were no significant differences between more than 2 o varus corrected and under 2 o varus corrected groups in clinical and radiographical results. However, all 3 conversions to total knee arthroplasties occurred in the undercorrected group.

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Section: 색인단어: 퇴행성 골관절염 고정형 슬관절 부분치환술unclassified

Short-Term Outcomes of Miller Galante® Fixed-Bearing Unicondylar Knee Arthroplasty: A Comparative Study in Outcomes according to Postoperative Correction Angle

Jung

Song

Seon

et al. 2010

J Korean Orthop Assoc

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Long-Term Survival Analysis of Unicompartmental Knee Arthroplasty

박

이

손

et al. 2019

J Korean Orthop Assoc

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This study evaluated the long term clinical and radiographic results and the survival rates of unicompartmental knee arthroplasty (UKA). In addition, the factors affecting the survival of the procedure were analyzed and the survival curve was compared according to the affecting factors. Materials and Methods: Ninety-nine cases of UKA performed between December 1982 and January 1996 were involved: 10 cases with Modular II, 44 cases with Microloc, and 45 cases with Allegretto prostheses. The mean follow-up period was 16.5 years. Clinically, the hospital for special surgery (HSS) scoring system and the range of motion (ROM) were evaluated. Radiographically, the femorotibial angle (FTA) was measured. The survival rate was analyzed using the Kaplan-Meier method. Cox regression analysis was used to identify the factors affecting the survival according to age, sex, body mass index, preoperative diagnosis, and type of implant. The Kaplan-Meier survival curves were compared according to the factors affecting the survival of UKA. Results: The overall average HSS score and ROM was 57.7 and 134.3° preoperatively, 92.7 and 138.4° at 1 year postoperatively, and 79.1 and 138.4° at the last follow-up (p<0.001, respectively). The overall average FTA was varus 0.8° preoperatively, valgus 4.1° at postoperative 2 weeks, and valgus 3.0° at the last follow-up. The overall 5-, 10-, 15-and 20-year survival rates were 91.8%, 82.9%, 71.0%, and 67.0%, respectively. The factors affecting the survival were the age and type of implant. The risk of the failure decreased with age (hazard ratio=0.933). The Microloc group was more hazardous than the other prostheses (hazard ratio=0.202, 0.430, respectively). The survival curve in the patients below 60 years of age was significantly lower than those of the patients over 60 years of age (p=0.003); the survival curve of the Microloc group was lower compared to the Modular II and Allegretto groups (p=0.025). Conclusion: The long-term clinical and radiographic results and survival of UKA using old fixed bearing prostheses were satisfactory. The selection of appropriate patient and prosthesis will be important for the long term survival of the UKA procedure.

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Results of the First Fifty Minimally Invasive Oxford Unicompartmental Knee Arthroplasty

Cited by 2 publications

References 23 publications

Short-Term Outcomes of Miller Galante® Fixed-Bearing Unicondylar Knee Arthroplasty: A Comparative Study in Outcomes according to Postoperative Correction Angle

Short-Term Outcomes of Miller Galante® Fixed-Bearing Unicondylar Knee Arthroplasty: A Comparative Study in Outcomes according to Postoperative Correction Angle

Long-Term Survival Analysis of Unicompartmental Knee Arthroplasty

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