Sivarasu Sudesh, Mathew Lazar
Centre for Biomedical Research, Vellore Institute of Technology University, Vellore, India.
J Long Term Eff Med Implants. 2009;19(4):265-70. doi: 10.1615/jlongtermeffmedimplants.v19.i4.30.
The total knee arthroplasty is the end-stage surgical procedure for pain relief in degenerative diseases such as arthritis. There have been many models designed in the five to six decades of arthroplasty history. This research has helped us in designing a new artificial high-flexion knee, which emphasizes a high flexion-extension range of over 125 degrees. This range provides comfort while squatting, even after the total knee replacement. This article discusses the usage of this novel design in the day-to-day activities of people in the Eastern world. The standard flexion-extension level of a normal knee was taken into account and verified on the new design. The results have been satisfactory, and the models have been proven to provide comfort during partial squatting. Our results show that this novel high-flexion knee provides three degrees of freedom compared with the six degrees of freedom in a natural knee.
全膝关节置换术是缓解关节炎等退行性疾病疼痛的终末期外科手术。在关节置换术长达五、六十年的历史中，已经设计出了许多模型。这项研究帮助我们设计出了一种新型人工高屈曲膝关节，它强调超过125度的高屈伸范围。即使在全膝关节置换术后，这个范围在蹲姿时也能提供舒适感。本文讨论了这种新颖设计在东方世界人们日常活动中的应用。在新设计中考虑并验证了正常膝关节的标准屈伸水平。结果令人满意，并且这些模型已被证明在部分蹲姿时能提供舒适感。我们的结果表明，与自然膝关节的六个自由度相比，这种新型高屈曲膝关节提供三个自由度。
