A comparative observation of the difference in short-term efficacy in patients with medial compartment knee osteoar-thritis treated with three different joint operations
Liu Yubing
Gao Zongbao
Lei Zhigang
Wang Tao
Wang Ping
Abstract：Objective To compare the clinical effects of unicompartmental knee arthroplasty(UKA),total knee ar-throplasty(TKA),and high tibial osteotomy(HTO)in patients with medial compartment knee osteoarthritis.Methods A ret-rospective analysis was performed on 292 patients with medial compartment knee osteoarthritis treated surgically in our hospi-tal from May 2020 to May 2023.According to the surgical method,patients were divided into the UKA group(n=97),TKA group(n=97),and HTO group(n=98).Perioperative status,knee function before and after surgery,early joint forgetfulness,femorotibial angle,knee motion,and complication rates were compared among the three groups.Results The operation time in the UKA group(103.6±13.0 min)was shorter than that in the HTO group(136.2±18.4 min)and TKA group(131.8±17.5 min)(F=29.664,P＜0.05).Postoperative decreases in hemoglobin(9.63±2.00 g/L)and hematocrit(4.11±0.96％),as well as surgical blood loss(336.8±55.9 mL),were lower in the UKA group than in the HTO and TKA groups(F=37.055,27.468,37.464;all P＜0.05).At 3 and 6 months postoperatively,WOMAC scores in the UKA and TKA groups[(14.0±4.3),(12.1±5.7)and(10.2±3.4),(8.8±4.0),respectively]were lower than those in the HTO group[(20.0±5.9),(13.4±6.1)](F=39.48,16.334;all P＜0.05).HSS scores in the UKA and TKA groups at 3 and 6 months[(78.6±8.6),(80.0±8.0)and(86.3±9.0),(88.5±6.7),respectively]were higher than those in the HTO group[(74.1±8.4),(82.0±9.2)](F=37.664,17.485;both P＜0.05).FJS-12 scores in the UKA group at 1,3,and 6 months postoperatively[(33.8±6.0),(54.1±7.6),(69.8±11.0)]were sig-nificantly higher than those in the HTO group[(28.0±5.8),(43.0±8.1),(51.4±9.7)]and TKA group[(29.5±6.7),(42.1±7.8),(53.0±10.8)](F=14.776,48.209,41.774;all P＜0.05).Conclusion UKA,TKA,and HTO all achieve favorable clinical out-comes in the treatment of medial compartment knee osteoarthritis.However,UKA offers advantages including shorter operative time,better early joint forgetfulness,and superior knee function recovery compared to TKA and HTO.Therefore,UKA may be the preferred option for eligible patients.
Keywords：Medial compartment knee osteoarthritisUnicompartmental knee arthroplastyTotal knee arthroplastyHigh tibial osteotomyKnee range of motionTherapeutic effect
Publication Date：2025-12-18
Online Publishing Date：2026-01-08(First online date of this platform, not the publication date of the document)
Pages：7( 1478-1484 )