Park Brian H, Leffler Jorg, Franz Alois, Dunbar Nicholas J, Banks Scott A
Gary J. Miller PhD Orthopaedic Biomechanics Laboratory, Department of Mechanical and Aerospace Engineering, University of Florida, MAE-A 318, Gainesville, FL, 32611-6250, USA.
Knee Surg Sports Traumatol Arthrosc. 2015 Jun;23(6):1756-62. doi: 10.1007/s00167-014-3427-1. Epub 2014 Nov 21.
There is an increased interest in treating arthritis of the medial and patellofemoral compartments without using a total knee arthroplasty. The purpose of this study was to measure kinematics in knees with a monoblock bicompartmental arthroplasty to see whether maintaining the cruciate ligaments and lateral compartment resulted in consistent kinematics more similar to healthy knees than those observed in replaced knees.
The kinematics of ten knees with monoblock bicompartmental arthroplasty were observed using fluoroscopy during three weight-bearing activities. Model-image registration techniques were used to quantify the three-dimensional motions of the knee joints.
During kneeling, lunging, and stair-step activities, the medial condyle remained relatively close to the centre of the tibial plateau, while the lateral condyle typically moved posteriorly with flexion. Knees generally exhibited motion patterns consistent with retained cruciate ligament function, but individual patterns varied significantly.
Bicompartmental knee arthroplasty has the potential to retain more natural knee function. Improved tools for aligning the implants and increased implant sizing options may be required to achieve highly consistent results and realize the clinical benefit of a knee arthroplasty with intact cruciate ligaments.
III.
在不进行全膝关节置换术的情况下治疗内侧和髌股关节间室关节炎的兴趣日益增加。本研究的目的是测量采用整块双间室关节置换术的膝关节的运动学，以观察保留交叉韧带和外侧间室是否能产生比置换膝关节更类似于健康膝关节的一致运动学。
在三项负重活动期间，使用荧光透视法观察了10个采用整块双间室关节置换术的膝关节的运动学。采用模型-图像配准技术对膝关节的三维运动进行量化。
在跪、弓步和上楼梯活动期间，内侧髁相对靠近胫骨平台中心，而外侧髁通常随屈曲向后移动。膝关节通常表现出与保留交叉韧带功能一致的运动模式，但个体模式差异显著。
双间室膝关节置换术有可能保留更多自然膝关节功能。可能需要改进用于对齐植入物的工具并增加植入物尺寸选择，以实现高度一致的结果，并实现保留交叉韧带的膝关节置换术的临床益处。
III级。
