Lateral unicompartmental knee replacement

Ashraf, T; Newman, John H.; Evans, R.; Ackroyd, C. E.

doi:10.1302/0301-620x.84b8.0841126

Cited by 56 publications

(38 citation statements)

References 3 publications

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“…Survivorship following a lateral UKA is variable in the literature, with rates ranging from 74.5% to 100% at 2 to 15 years of follow-up [25][26][27][28][29][30][31][32][33][34][35] . van der List et al reported that lateral UKAs were associated with a survivorship rate of 93.2% at 5 years, 91.4% at 10 years, and 89.4% at 15 years 33 .…”

Section: Discussionmentioning

confidence: 99%

Isolated Lateral Tibiofemoral Compartment Osteoarthritis

Plancher

Chinnakkannu

Dotterweich

et al. 2022

Journal of Bone and Joint Surgery

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Background: Lateral unicompartmental knee arthroplasty (UKA) is an excellent option to alleviate disability and restore function in patients with lateral compartment knee osteoarthritis (OA). The purpose of the present study was to determine the survivorship and long-term outcomes in both younger/middle-aged and older patients with lateral compartment OA following non-robotically-assisted, fixed-bearing lateral UKA and to determine if an acceptable symptom state can be achieved.Methods: All patients were managed with fixed-bearing lateral UKA by a single surgeon utilizing a lateral parapatellar approach without robotic assistance. The primary outcome variables were the Knee injury and Osteoarthritis Outcome Score (KOOS) Activities of Daily Living (ADL) and Sport subscale scores. In addition, the other KOOS subscores, the Lysholm score, the achievement of the Patient Acceptable Symptom State (PASS), and the Veterans RAND (VR-12) Physical Component Summary score (PCS) and Mental Component Summary score (MCS) were collected. Failure was defined as conversion to total knee arthroplasty (TKA). Patients were divided into 2 cohorts: younger/middle-aged patients (<60 years of age) and older patients ( ‡60 years of age).Results: A cohort of 256 patients underwent medial (n = 193) or lateral (n = 63) UKA. Sixty-one patients met the inclusion criteria. At mean of 10 years (range, 4 to 17 years) of follow-up, there were no significant differences between the groups in terms of any patient-reported outcome measures (p > 0.05). The percentage of patients in whom PASS was achieved on the KOOS ADL and Sport subscores was 82% and 88%, respectively, in the younger cohort and 80% and 80%, respectively, in the older cohort. The mean survival estimate of the prothesis was 15.3 years (95% confidence interval [CI], 14.5 to 16.2 years) for the entire cohort. The estimated rate of implant survival in the younger cohort was 100% at 5 and 10 years, and the estimated rate of implant survival in the older cohort was 98% at 5 years and 96% at 10 years.Conclusions: Lateral fixed-bearing, non-robotic UKA for the treatment of isolated lateral compartment OA resulted in >80% of patients reaching an acceptable symptom state in terms of both activities of daily living and sporting activities. UKA provides an excellent option that provides longevity with high PASS rates and return to activities with a low risk of complications and failure.Level of Evidence: Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence. K nee osteoarthritis (OA) is estimated to afflict 15 million individuals in the U.S., with 8.6 million having advanced symptomatic knee OA pain 1 . Persons <45 years of age make up nearly 2 million of this total, and persons between 45 and 64 years of age make up 6 million 1 . Fifty percent of these patients are known to have disease pathology that is isolated to a single, predominantly medial, compartment 2 . Lateral compartment OA, while seen in a smaller percentage of the population, is often ...

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Section: Discussionmentioning

confidence: 99%

Isolated Lateral Tibiofemoral Compartment Osteoarthritis

Plancher

Chinnakkannu

Dotterweich

et al. 2022

Journal of Bone and Joint Surgery

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“…3 A-D) [24]. The general indication for consideration of a UKA procedure is based an isolated involvement of either the lateral or medial tibiofemoral compartment, identified upon clinical and radiographic examination [25,26]. Silent preoperative radiographic signs of patellofemoral joint disease can be ignored and are not considered a contraindication for UKA [27,28].…”

Section: Review Article: Medical Intelligencementioning

confidence: 99%

Arthroplasty – current strategies for the management of knee osteoarthritis

Ahmad¹,

Gantenbein²,

Evangelopoulos³

et al. 2015

Swiss Med Wkly

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Osteoarthritis of the knee is a major clinical burden. Recent decades have witnessed an improved understanding of knee physiology and kinematics, which has led to the introduction of a wide range of enhanced prosthetic implant designs for a variety of indications. However, the increase in the number of procedures performed annually has led to complications being encountered at higher rates than ever before, requiring the development of optimised therapeutic strategies. The future holds several promising options, primarily in the treatment of early osteoarthritis, biological therapy, surgical navigation and patient-specific implants. This review provides an insight into the current options of knee arthroplasty, with emphasis on available designs, and examines the complications that may be encountered.

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“…The femoral condyle undergoes a greater translation than the medial condyle during flexion, which may result in instability and dislocation of the tibial insert in mobile-bearing prosthesis [ 72 ]. The kinematics of the lateral compartment suggests that a fixed-bearing component may offer a better solution [ 73 ].…”

Section: Surgical Oa Treatmentmentioning

confidence: 99%

Current Surgical Treatment of Knee Osteoarthritis

et al. 2011

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Osteoathritis (OA) of the knee is common, and the chances of suffering from OA increase with age. Its treatment should be initially nonoperative—and requires both pharmacological and nonpharmacological treatment modalities. If conservative therapy fails, surgery should be considered. Surgical treatments for knee OA include arthroscopy, cartilage repair, osteotomy, and knee arthroplasty. Determining which of these procedures is most appropriate depends on several factors, including the location, stage of OA, comorbidities on the one side and patients suffering on the other side. Arthroscopic lavage and débridement is often carried out, but does not alter disease progression. If OA is limited to one compartment, unicompartmental knee arthroplasty or unloading osteotomy can be considered. They are recommended in young and active patients in regard to the risks and limited durability of total knee replacement. Total arthroplasty of the knee is a common and safe method in the elderly patients with advanced knee OA. This paper summarizes current surgical treatment strategies for knee OA, with a focus on the latest developments, indications and level of evidence.

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Lateral unicompartmental knee replacement

Cited by 56 publications

References 3 publications

Isolated Lateral Tibiofemoral Compartment Osteoarthritis

Isolated Lateral Tibiofemoral Compartment Osteoarthritis

Arthroplasty – current strategies for the management of knee osteoarthritis

Current Surgical Treatment of Knee Osteoarthritis

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