Good results with minimally invasive unicompartmental knee resurfacing after 10-year follow-up

Redish, Martin H.; Fennema, Peter

doi:10.1007/s00590-017-2079-5

Cited by 14 publications

(11 citation statements)

References 34 publications

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“…While the long-term successful results of UKA are known in the literature, the importance of patient, surgeon, and implant related factors has been reported (20)(21)(22)(23)(24). In this study, we found similar good clinical, functional, and radiological results, and low revision rates in both designs.…”

Section: Discussionsupporting

confidence: 66%

Sabit-İnsörtlü ve Mobil-İnsörtlü Unikondiler Diz Artroplastisi: Benzer Komponent ve Mekanik Eksen Dizilimine Sahip Hastaların Karşılaştırması

Saylık

ERGÜN>

Güneş

2022

Düzce Tıp Fakültesi Dergisi

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Aim: Unicondylar knee arthroplasty (UKA) is among the treatment options for patients with arthritis limited to one compartment of the knee. Fixed-bearing (FB) and mobile-bearing (MB) inserts are present. This study aimed to compare functional and clinical outcomes and revision rates of patients operated with FB-UKA and MB-UKA. Material and Methods: A total of 131 knees of 118 patients underwent cemented UKA, with a mean follow-up period of 80.58±31.31 months for FB-UKA and 97.66±29.24 months for MB-UKA. Clinical and functional evaluation was performed by the Knee Society Score (KSS) and Western Ontario and McMaster Universities Arthritis Index (WOMAC) score, at the last follow-up visit. The factors affecting the radiological and functional results, complication, and revision rates were examined under three main titles; i) surgeon-related, ii) patient-related, and iii) component alignment-related factors. Results: There was no significant difference between the groups in terms of age, gender, body mass index, and side. Regarding the KSS scores, 9 (6.87%) knees were within acceptable limits, 62 (47.32%) knees were found to be good, and 60 (45.80%) knees were found to be excellent. No statistically significant difference was found between groups (p=0.497). Regarding the WOMAC scores, the MB-UKA group had significantly lower pain (p=0.049) and stiffness (p=0.014), but similar functional (p=0.591) scores. There was no statistically significant difference regarding revision rates (p=0.931). Conclusion: Similar clinical, functional, and radiological results and low revision rates were found. In terms of pain and joint stiffness, a significant difference was found between groups, in favor of MB-UKA.

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Section: Discussionsupporting

confidence: 66%

Sabit-İnsörtlü ve Mobil-İnsörtlü Unikondiler Diz Artroplastisi: Benzer Komponent ve Mekanik Eksen Dizilimine Sahip Hastaların Karşılaştırması

Saylık

ERGÜN>

Güneş

2022

Düzce Tıp Fakültesi Dergisi

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“…The FJS score has a benefit compared to the other PROMs used in that it does not have a ceiling effect and can better differentiate between good and excellent results. Our mean FJS was higher than values seen in conventional UKA (mean 68.9) [27] and in TKA at 2-year follow-up (mean 59.8) as well as above the PASS threshold [28]. Zuiderbaan et al directly compared a cohort of RA-UKA and TKA and similarly found that RA-UKA was more likely forgotten compared to TKA [28].…”

Section: Discussionmentioning

confidence: 48%

5-Year Survivorship and Outcomes of Robotic-Arm-Assisted Medial Unicompartmental Knee Arthroplasty

Gaudiani

Samuel

Diana

et al. 2022

Applied Bionics and Biomechanics

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Purpose. While unicompartmental knee arthroplasty (UKA) has demonstrated benefits over total knee arthroplasty (TKA) in selected populations, component placement continues to be challenging with conventional surgical instruments, resulting in higher early failure rates. Robotic-arm-assisted UKA (RA-UKA) has shown to be successful in component positioning through preop planning and intraop adjustability. The purpose of this study is to assess the 5-year clinical outcomes of medial RA-UKA. Methods. This study was a retrospective review of a single-center prospectively maintained cohort of 133 patients (146 knees) indicated for medial UKA from 2009 to 2013. Perioperative data and 2- and 5-year Knee injury Osteoarthritis Outcome Score (KOOS), Western Ontario and McMaster Universities Osteoarthritis Score (WOMAC), and Forgotten Joint Score (FJS) outcome measures were collected. Five-year follow-up was recorded in 119 patients (131 knees). Results. Mean follow-up was 5.1 ± 0.2 years. Mean age and BMI were 68.0 ± 8.1 years and 29.3 ± 4.7 kg/m2, respectively. At 2-year follow-up, mean KOOS, WOMAC, and FJS were 71.5 ± 15.3 , 14.3 ± 7.9 , and 79.1 ± 25.8 , respectively. At 5-year follow-up, mean KOOS, WOMAC, and FJS were 71.6 ± 15.2 , 14.2 ± 7.9 , and 80.9 ± 25.1 , respectively. Mean change in KOOS and WOMAC was 34.6 ± 21.4 and 11.0 ± 13.6 , respectively ( p < 0.001 and p < 0.001 ). For patient satisfaction at last follow-up, 89% of patients were very satisfied/satisfied and 5% were dissatisfied. For patient activity expectations at last follow-up, 85% met activity expectations, 52% were more active than before, 25% have the same level of activity, 23% were less active than before, and 89% were walking without support. All patients returned to driving after surgery at a mean 15.2 ± 9.4 days. Survivorship was 95% (95% CI 0.91-0.98) at 5 years. One knee (1%) had a patellofemoral revision, two knees (1.3%) were revised to different partial knee replacements, and five knees (3.4%) were converted to TKA. Conclusion. Overall, medial RA-UKA demonstrated improved patient-recorded outcomes, high patient satisfaction, met expectations, and excellent functional recovery. Midterm survivorship was excellent. Longitudinal follow-up is needed to evaluate long-term outcomes of robotic-arm-assisted UKA procedures.

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“…Studies have reported successful longterm results in UKA and have stressed the importance of correct patient selection, the surgeon's accumulated experience with the prostheses, and the appropriate choice of UKA (mobile or fixed). [15][16][17] Appropriately performed UKA has demonstrated successful and effective clinical results. 18 In a group of patients under 60 years of age who underwent UKA, 93% returned to normal activities and demonstrated rapid improvement in physical activity.…”

Section: Discussionmentioning

confidence: 99%

Outcome of mobile and fixed unicompartmental knee arthroplasty and risk factors for revision

2022

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Objectives In this study, we aimed to evaluate the outcomes of patients undergoing unilateral knee arthroplasty (UKA) and to analyze risk factors that may lead to revision in patients who undergo UKA. Methods We included patients who underwent mobile or fixed UKA owing to osteoarthritis and who had at least 24 months of follow-up in the postoperative period. We recorded information on patient age, sex, side, body mass (kg/m2), follow-up duration, Knee Society Score, Western Ontario and McMaster Universities Arthritis Index (WOMAC) pain, WOMAC function, WOMAC stiffness, mechanical axle angle, femoral component compliance, tibial component compliance, accumulated experience of the surgeon, and revision status. Results In total, we evaluated 131 knees in 118 patients. 50 (38%) who underwent mobile UKA and 81 (62%) who underwent fixed UKA. The effect of obesity on mobile and fixed UKA revision was significant. The likelihood of revision decreased with greater experience of the surgeon performing UKA. Conclusion Our study showed that the clinical results of mobile and fixed UKA procedures are similar. We also revealed that obesity poses a risk for revision in both fixed and mobile UKA, and the revision rate decreases with increased experience of the surgeon.

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Good results with minimally invasive unicompartmental knee resurfacing after 10-year follow-up

Cited by 14 publications

References 34 publications

Sabit-İnsörtlü ve Mobil-İnsörtlü Unikondiler Diz Artroplastisi: Benzer Komponent ve Mekanik Eksen Dizilimine Sahip Hastaların Karşılaştırması

Sabit-İnsörtlü ve Mobil-İnsörtlü Unikondiler Diz Artroplastisi: Benzer Komponent ve Mekanik Eksen Dizilimine Sahip Hastaların Karşılaştırması

5-Year Survivorship and Outcomes of Robotic-Arm-Assisted Medial Unicompartmental Knee Arthroplasty

Outcome of mobile and fixed unicompartmental knee arthroplasty and risk factors for revision

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