scholarly journals 589 Early Results of Single Anaesthetic Bilateral Fixed Bearing Cemented Medial Unicompartmental Knee Replacement

2021 ◽  
Vol 108 (Supplement_2) ◽  
Author(s):  
S Roy ◽  
M Kiran ◽  
N Atwal ◽  
Ha Gosal
Keyword(s):  
Knee Replacement ◽  
Unicompartmental Knee Replacement ◽  
Functional Score ◽  
Fixed Bearing ◽  
Unicompartmental Knee ◽  
Early Results ◽  
Functional Scores ◽  
Surgical Data ◽  
The Mean

Abstract Introduction Unicompartmental knee replacement (UKR) results in less morbidity, early mobilisation, and better PROMs in appropriately selected patients. There has been a steady increase in the number of fixed bearing UKRs in the NJR. We present the early results of single anaesthetic bilateral fixed bearing cemented medial UKR. Method All patients undergoing bilateral UKR using the ZUK prosthesis (LIMA, UK) under a single anaesthetic between March 2013 and March 2019 were included in this study. Demographic data, surgical data, change in haemoglobin after surgery and occurrence of complications were prospectively recorded in the hospital database. Pre-op and follow-up Oxford knee scores were recorded. Statistical analysis was performed using SPSS 25.0 (IBM, USA) and paired t-test was used to analyse improvement in functional score. Results Nine patients were included in this study. The mean age was 53.2years (range 43-71 years). There were 2 females and 7 males. A significant improvement in Oxford knee score from a mean of 37.2 to 53.6(p < 0.01) was seen. The mean drop in Hb was 4.1mg/dl. The mean follow up was 28 months (range 12-76 months). Conclusions There was good improvement in functional scores without any significant drop in Hb. Therefore, it is a safe and beneficial procedure.

EARLY RESULTS OF FIXED BEARING UNICOMPARTMENTAL KNEE REPLACEMENT DESIGNED FOR THE LATERAL COMPARTMENT

The Knee ◽  
2020 ◽  
Vol 27 ◽  
pp. S4-S5
Author(s):  
S. Asadollahi ◽  
F.R. Thomson ◽  
H.A. Wilson ◽  
R.M. Middleton ◽  
C. Jenkins ◽  
...  
Keyword(s):  
Knee Replacement ◽  
Lateral Compartment ◽  
Unicompartmental Knee Replacement ◽  
Fixed Bearing ◽  
Unicompartmental Knee ◽  
Early Results

Simultaneous Unicompartmental Knee Arthroplasty and Lateral Patellar Facetectomy for Bicompartmental Degenerative Disease

2013 ◽  
Vol 3 (1) ◽  
pp. 61-66 ◽  
Author(s):  
Robert A Magnussen ◽  
Evrard Gancel ◽  
Elvire Servien ◽  
Matthias Jacobi ◽  
Guillaume Demey ◽  
...  
Keyword(s):  
Treatment Option ◽  
Knee Arthroplasty ◽  
Unicompartmental Knee Arthroplasty ◽  
Patient Population ◽  
Patellofemoral Joint ◽  
Degenerative Disease ◽  
Functional Score ◽  
Unicompartmental Knee ◽  
The Mean

ABSTRACT Introduction Unicompartmental knee arthroplasty (UKA) is a treatment option in patients with unicompartmental degenerative disease. Compared to total knee arthroplasty (TKA), the advantages of UKA include accelerated recovery and cruciate ligament retention. These advantages, along with emerging evidence that mild patellofemoral joint osteoarthritis does not compromise results of UKA have encouraged expansion of the indications for UKA. Symptomatic lateral patellofemoral joint degenerative disease is a common cause of UKA revision. Partial lateral patellar facetectomy can provide relief from symptoms of lateral patellofemoral degenerative disease. We hypothesize that simultaneous UKA and lateral patellar facetectomy provides durable pain relief and functional improvement in a patient population with degenerative disease of one tibiofemoral compartment and the lateral patellofemoral joint. Materials and methods: Between 2004 and 2008, 11 lateral UKA's were performed in association with partial lateral patellar facetectomy in 11 female patients (mean age: 66.7 years) with degenerative changes in one tibiofemoral compartment and the lateral patellofemoral joint. Patients were followed clinically and radiographically for a mean of 5 years. Results No patient underwent revision surgery in the followup period. The mean international Knee Society (IKS) knee score improved from 64.9 ± 11.2 points preoperatively to 87.5 ± 12.6 points at final follow-up (p = 0.01). The mean IKS functional score improved from 65.9 ± 23.5 points preoperatively to 83.2 ± 23.3 points at final follow-up (p = 0.012). The mean Kujala score was 84.3 ± 13.5 points postoperatively. Progression of patellofemoral OA was observed in one patient. Conclusion Simultaneous UKA and partial lateral patellar facetectomy is a viable treatment option for symptomatic degenerative disease involving one tibiofemoral compartment and the lateral patellofemoral joint. This treatment approach may be a useful alternative to TKA or bicompartmental arthroplasty in a carefully selected patient population. Level of evidence Case series—Level IV. Magnussen RA, Gancel E, Servien E, Jacobi M, Demey G, Neyret P, Lustig S. Simultaneous Unicompartmental Knee Arthroplasty and Lateral Patellar Facetectomy for Bicompartmental Degenerative Disease. The Duke Orthop J 2013;3(1):61-66.

Obesity has no adverse effect on the outcome of unicompartmental knee replacement at a minimum follow-up of seven years

2013 ◽  
Vol 95-B (8) ◽  
pp. 1064-1068 ◽  
Author(s):  
E. Cavaignac ◽  
V. Lafontan ◽  
N. Reina ◽  
R. Pailhé ◽  
M. Warmy ◽  
...  
Keyword(s):  
Adverse Effect ◽  
Knee Replacement ◽  
Unicompartmental Knee Replacement ◽  
Unicompartmental Knee

Minimally invasive lateral unicompartmental knee replacement: Early results from an independent center using the Oxford fixed lateral prosthesis

The Knee ◽  
2020 ◽  
Vol 27 (1) ◽  
pp. 235-241 ◽  
Author(s):  
Tilman Walker ◽  
Mustafa Hariri ◽  
Johannes Eckert ◽  
Benjamin Panzram ◽  
Tobias Reiner ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Knee Replacement ◽  
Unicompartmental Knee Replacement ◽  
Unicompartmental Knee ◽  
Early Results

SHORT-TERM RESULTS OF THE OXFORD UNICOMPARTMENTAL KNEE REPLACEMENT IN PATIENTS LESS THAN SIXTY-FIVE YEARS OF AGE

2009 ◽  
Vol 12 (04) ◽  
pp. 185-189
Author(s):  
Itay Fenichel ◽  
Snir Heler ◽  
Moshe Salai ◽  
Stieven Velkes
Keyword(s):  
Knee Replacement ◽  
Knee Prosthesis ◽  
Womac Score ◽  
High Rate ◽  
Unicompartmental Knee Replacement ◽  
Short Term ◽  
Unexplained Pain ◽  
Unicompartmental Knee ◽  
Total Womac Score ◽  
The Mean

Our short-term results obtained with the Oxford unicompartmental knee prosthesis for unicompartmental knee arthrosis or AVN (avascular necrosis) in patients younger than 65 years of age are presented. Twenty patients (16 females and 4 males) with 20 prostheses were evaluated. The average age at surgery was 59 years (range 45 to 65 years). The etiology for surgery was osteoarthritis in 18 cases and AVN in two of them. Nineteen prostheses were uni-medial and one uni-lateral. After an average of 38 months, the mean Knee Society Score was excellent with 81.7 (range 29 to 100) points, the mean total WOMAC score was 26 (range 0 to 78), the mean reduced- WOMAC score 7.9 (range 0 to 24), the mean SF12 physical 36.8 (range 19.8 to 56.7), and the mean SF12 mental 47.5 (range 19 to 64). We did not find any significant correlation between the final outcome and the alignment of each component on X-ray. The only statistically significant correlation we could demonstrate was between the alignment of the knee on AP-View and the functional outcome. Three prostheses out of the twenty had to be revised, two of them due to early aseptic loosening of the tibial component and another one because of unexplained pain. Despite the relative high rate of early revisions (15%) in this group, our finding confirm the good results reported in different other studies regarding the success rate of unicompartmental knee replacement in patients under the age of 65 years.

Functional improvement after unicompartmental knee replacement: a follow-up study with a performance based knee test

2007 ◽  
Vol 15 (10) ◽  
pp. 1187-1193 ◽  
Author(s):  
Lucas L. A. Kleijn ◽  
Wouter L. W. van Hemert ◽  
Will G. H. Meijers ◽  
Arnold D. M. Kester ◽  
Lukas Lisowski ◽  
...  
Keyword(s):  
Knee Replacement ◽  
Functional Improvement ◽  
Unicompartmental Knee Replacement ◽  
Follow Up Study ◽  
Unicompartmental Knee ◽  
A Performance

scholarly journals Cementless Oxford Medial Unicompartmental Knee Replacement—Clinical and Radiological Results of 228 Knees with a Minimum 2-Year Follow-Up

2020 ◽  
Vol 9 (5) ◽  
pp. 1476 ◽  
Author(s):  
Benjamin Panzram ◽  
Mira Mandery ◽  
Tobias Reiner ◽  
Tobias Gotterbarm ◽  
Marcus Schiltenwolf ◽  
...  
Keyword(s):  
Clinical Outcome ◽  
Knee Replacement ◽  
Survival Rates ◽  
Unicompartmental Knee Replacement ◽  
Radiolucent Lines ◽  
Implant Positioning ◽  
Radiological Results ◽  
Unicompartmental Knee ◽  
Clinical And Radiological Results

(1) Background: Studies show several advantages of unicompartmental knee replacement (UKR) over total knee replacements (TKR), whereas registry based revision rates of UKR are significantly higher than for TKA. Registry data report lower revision rates for cementless UKR compared to cemented UKR. The aim of this study was to assess clinical and radiological results of cementless Oxford UKR (OUKR) in an independent cohort. (2) Methods: This retrospective cohort study examines a consecutive series of 228 cementless OUKR. Clinical outcome was measured using functional scores (Oxford Knee Score (OKS), American Knee Society Score (AKSS), Hannover Functional Ability Questionnaire for Osteoarthritis (FFbH-OA), range of motion (ROM)), pain and satisfaction. Radiographs were analyzed regarding the incidence of radiolucent lines (RL), implant positioning, and their possible impact on clinical outcome. (3) Results: At a mean follow-up of 37.1 months, the two and three year revision free survival-rates were 97.5% and 96.9%. Reasons for revision surgery were progression of osteoarthritis, inlay dislocation and pain. All clinical outcome scores showed a significant improvement from pre- to postoperative. The incidence of RL around the implant was highest within the first year postoperatively (36%), and decreased (5%) within the second year. Their presence was not correlated with inferior clinical outcome. Implant positioning showed no influence on clinical outcome. (4) Conclusion: Cementless OUKR showed excellent clinical outcome and survival rates, with reliable osteointegration. Neither the incidence of radiolucent lines nor implant positioning were associated with inferior clinical outcome.

scholarly journals One stage bilateral unicompartmental knee replacement: Similar early clinical outcome with shorter rehabilitation and better resources utilization compared with two stage

2020 ◽  
pp. 221049172097367
Author(s):  
Yan Ho Bruce Tang ◽  
Hok Leung Wong ◽  
Tai Fong Wong
Keyword(s):  
Clinical Outcome ◽  
Knee Replacement ◽  
Operative Time ◽  
Unicompartmental Knee Replacement ◽  
Knee Score ◽  
Two Stage ◽  
One Stage ◽  
Unicompartmental Knee ◽  
Early Results ◽  
The One

Introduction: There are a lot of debates on the advantages and safety profile of one stage bilateral knee arthroplasty. Most of the studies focus on total knee replacement, and it may not be applied directly to unicompartmental knee replacement (UKR). We would like to compare the early results of one and two stage bilateral UKR in our center. Methods: This is a retrospective review of all the bilateral medial UKR done in our center in 2018–2019. Patients’ demographic data, operative time, postoperative blood, length of stay (LOS) and complications were recorded. The number of admissions, pre-operative assessment sessions (PAS), and weeks of post-operative physiotherapy were analyzed. Clinical outcome was measured by Knee society knee score and range of motion (ROM). Results: Our center performed 97 UKR in 2018–2019, with 50 UKR performed in 25 patients, among which 16 received one stage while 9 received two stage bilateral UKR. Both groups had similar mean age, BMI, sex ratio, ASA grading, pre-operative knee score and ROM. Patient in the one stage group required only 1 PAS/admission/operation to treat both knees with a mean LOS of 7.3 days and 7.8 weeks of physiotherapy, while those in the two stage group required 2 PAS/admissions/operations with a mean cumulative LOS of 9.8 days and 14.1 weeks of physiotherapy. The mean cumulative operative time was similar for both groups but the one stage group only required 1 operative session. There was no difference in blood loss and there was no transfusion or complication. The post-operative knee score and ROM at 3 and 6 months were similar for both groups. Conclusion: In suitable patients with bilateral medial OA knee, one stage bilateral UKR offers simliar early clinical outcome with shorter rehabilitation duration but without increasing complications compared with two stage. Resources can therefore be better utilized.

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