In this section
@article{Garner:2026:10.1302/2046-3758.152.BJR-2025-0190.R1,
author = {Garner, AJ and Dandridge, OW and Cobb, JP},
doi = {10.1302/2046-3758.152.BJR-2025-0190.R1},
journal = {Bone Joint Res},
pages = {148--156},
title = {Lateral unicompartmental knee arthroplasty is associated with nearer-normal gait characteristics and higher patient satisfaction compared to total knee arthroplasty.},
url = {http://dx.doi.org/10.1302/2046-3758.152.BJR-2025-0190.R1},
volume = {15},
year = {2026}
}
TY - JOUR
AB - AIMS: Lateral unicompartmental arthroplasty (UKA-L) is a bone- and cruciate-preserving procedure in the treatment of isolated lateral compartment gonarthrosis, but relatively little is known of its associated gait characteristics and patient-reported outcomes. METHODS: A total of 20 individuals, at a mean 35 months (SD 37) post UKA-L, were measured on an instrumented treadmill. They were compared to age-, sex-, and BMI-matched healthy controls (n = 22) and individuals with unilateral total knee arthroplasty (TKA, n = 28) mean 44 months (SD 46) post-surgery (p = 0.382). Top walking speed, temporospatial parameters, and vertical ground reaction forces of gait were analyzed. Oxford Knee Scores (OKS) and EuroQol five-dimension questionnaire (EQ-5D) scores were compared. RESULTS: The UKA-L group walked at a mean speed of 7.0 km/hour (SD 0.6), which was 0.2 km/hour (3%) slower than the healthy control group (7.2 km/hour (SD 0.7); p = 0.681) but 26% faster than the TKA group (5.5 km/hour (SD 0.7), p < 0.001). UKA-L displayed nearer normal vertical ground reaction forces throughout the stance phase. TKA demonstrated significantly reduced maximum weight acceptance, increased mid-stance, and reduced push-off forces compared to healthy and UKA-L subjects (all p < 0.05). UKA-L recorded similar step and stride lengths to healthy controls, and were 12% and 10% longer than TKA, respectively (p < 0.05). UKA-L was associated with a mean OKS of 44 (SD 3) compared to 36 (SD 6) for TKA (p < 0.001), and mean EQ-5D of 0.90 (SD 0.09) vs 0.78 (SD 0.14) for TKA (p = 0.003). CONCLUSION: UKA-L restores healthy gait characteristics at top walking speeds. Compared to TKA, faster walking speeds, nearer-normal vertical ground reaction forces, longer stride lengths, and a more consistent gait pattern demonstrate the importance of functional cruciate ligaments to gait. UKA-L is associated with high patient satisfaction and good quality of life in the treatment of isolated lateral compar
AU - Garner,AJ
AU - Dandridge,OW
AU - Cobb,JP
DO - 10.1302/2046-3758.152.BJR-2025-0190.R1
EP - 156
PY - 2026///
SN - 2046-3758
SP - 148
TI - Lateral unicompartmental knee arthroplasty is associated with nearer-normal gait characteristics and higher patient satisfaction compared to total knee arthroplasty.
T2 - Bone Joint Res
UR - http://dx.doi.org/10.1302/2046-3758.152.BJR-2025-0190.R1
UR - https://www.ncbi.nlm.nih.gov/pubmed/41642280
VL - 15
ER -