Effect of osteoarthritic knee flexion deformity correction by total knee arthroplasty on sagittal spinopelvic alignment in Indian population  

作　　者：Lubaib Karaniveed Puthiyapura Mantu Jain Sujit Kumar Tripathy Haridas Mundot Puliappadamb 

机构地区：[1]Department of Orthopaedics,AIIMS Bhubaneswar,Bhubaneswar 751019,Odisha,India [2]Department of Pharmacology,AIIMS Bhubaneswar,Bhubaneswar 751019,Odisha,India

出　　处：《World Journal of Clinical Cases》2022年第21期7348-7355,共8页世界临床病例杂志

摘　　要：BACKGROUND Sagittal alignment of the spine,pelvis,and lower extremities is essential for maintaining a stable and efficient posture and ambulation.Imbalance in any element can result in compensatory changes in the other elements.Knee flexion is a compensatory mechanism for spinopelvic sagittal alignment and is markedly affected in severe knee osteoarthritis(OA).The correction of knee flexion deformity(KFD)by total knee arthroplasty(TKA)can lead to complementary changes in the sagittal spinopelvic parameters(SSPs).AIM To determine the SSP changes in patients with knee OA,with or without KFD undergoing TKA.METHODS The study was conducted in 32 patients who underwent TKA.A neutral standing whole-spine lateral radiograph was performed before surgery and 3 mo after surgery in these patients.Subjects were divided into two groups(Group 1 obtained>10°corrections in KFD;group B obtained<10°correction).The pelvic tilt(PT),pelvic incidence(PI),sacral slope(SS),lumbar lordosis(LL),and sagittal vertical axis(SVA)were measured.RESULTS The median of change in PT,PI,SS,LL,and SVA was 0.20 mm,1.00 mm,2.20 mm,−0.40 mm,and 6.8 mm,respectively.The difference in the change in SSPs between the two groups was statistically non-significant.CONCLUSION SSPs,such as PI,PT,SS,LL,and SVA,do not change significantly following TKA in end-stage knee OA despite a significant correction(>10°)in KFD.

关 键 词：Knee osteoarthritis Total knee replacement Spino-sagittal parameters Knee flexion deformity 

分 类 号：R687.4[医药卫生—骨科学]