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Table 3 Recent studies comparing UKA and TKA

From: Better short-term function after unicompartmental compared to total knee arthroplasty

Author

Year

study

Study design

Result

Tu et al. [16]

2020

121 UKA vs 35 TKA in theIsolated lateral OA, mean FU5.3 years

retrospective,monocenter

better postoperative Oxford Knee Score, Hospital for Special Knee Surgery score, range of motion, shorter length of hospitalization, and higher satisfaction rate in UKA

Liebensteineret al. [17]

2020

112 UKA vs. 330 TKA in medialOA

retrospective,multicenter (registrydata)

no significant differences between WOMAC and early or late ROM

Blevins et al.[18]

2020

150 UKA vs 150 TKA

retrospective,monocenter, matched-pair

UKA patients had less postoperative pain, earlier return to work, andhigher KSS

Hauer et al.[19]

2020

35 UKA vs 35 TKA, mean FU2.3 years

retrospective,monocenter, matched-pair

UKA better regarding Tegner Activity Scale and ROM, better results insubscales of Short-Form 36

Harbourneet al. [20]

2019

420 UKA vs 575 TKA, FU 12 months

prospective,longitudinal cohortstudy, multicenter

UKA patients more likely to return to desired activity

Lum et al.[21]

2018

650 UKA vs 1300 TKA inseverely obese patients, meanFU 2.3 years

retrospective

UKA with equal survivorship with substantially fewer reoperations,reduced deep infection, and less perioperative complications, severelyobese patients had improved Knee function scores

Miglioriniet al. [22]

2018

3254 UKA vs 10.649 TKA

Meta-analysis

UKA with better clinical and functional outcome, yet reducedsurvivorship

Goh et al.[23]

2018

160 UKA vs 160 TKA, patientsyounger than 55, mean FU 7 years

prospective,multicenter, matched-pair

no significant difference in Knee Society Score, Oxford Knee Score,and Short-Form 36; greater ROM in short-term (2 years)

Lombardiet al. [24]

2018

UKA vs TKA revision, n = 193,mean postoperative interval4.8 years

retrospective,monocenter

Re-revision rates after UKA revision equal to primary TKA and lowercompared to Re-revision TKA

Siman et al.[25]

2017

120 UKA vs 188 TKA, patientsolder than 75 in medial OA

retrospective,monocenter

UKA with shorter operative time and hospital stay, lowerintraoperative blood loss / transfusions, greater postoperative range ofmotion, higher level of activity at time of discharge, no difference inpostoperative KSS, or 5-year survivorship

Kulshresthaet al. [8]

2017

40 UKA vs 40 TKA, comparisonon early medial OA, FU 2 years

prospective,randomized,monocenter

UKA with similar improvement in patient-reported outcomes, function,and performance; UKA with shorter hospital stay and fewercomplications

van der Listet al. [26]

2017

166 UKA vs 63 TKA,comparison in medial OA,mean FU 3 years

retrospective,monocenter

better functional outcome in UKA, especially in younger patients andfemales

Lum et al.[27]

2016

201 UKA vs. 189 TKA, mean FU5.5 years

retrospective,monocenter

UKA with higher postoperative Knee Function Score, no differences inROM, revision rates without statistical differences

Shankar et al.[28]

2016

64 UKA vs 64 TKA, cost analysis

retrospective,monocenter, matched-pair

UKA with shorter operative time, hospital stay, lower transfusion rates,earlier discharge, overall lower direct and total cost

van der Listet al. [29]

2016

48 UKA vs 34 TKA, comparisonin lateral OA, mean FU 2.8 years

retrospective,monocenter

UKA with superior short-term functional outcome (WOMAC), especiallyin young patients and females

Fabre-Aubrespyet al. [30]

2016

101 UKA vs 101 TKA, patientsolder than 75, FU 5 years

retrospective,monocenter, matched-pair

UKA with better KSS, KOOS and Forgotten Knee score, similar 16 yrsurvivorship

Schwab et al.[31]

2015

105 UKA vs 105 TKA

retrospective,monocenter, matched-pair

lower blood loss and transfusion rates in UKA

  1. UKA Unicompartmental Knee Arthroplasty, TKA Total Knee Arthroplasty, OA Osteoarthritis, FU Follow-Up, WOMAC Western Ontario and McMaster Universities Osteoarthritis Index, ROM Range of Motion, KSS Knee Society Score