Fokin Alexander, Heekin David
Institute for Orthopedic Research, St. Vincent's Medical Center, Jacksonville, Florida. Address correspondence to: Alexander Fokin, MD, PhD, Institute for Orthopedic Research, St. Vincent's Medical Center, 2 Shircliff Way, Jacksonville, FL 32204; e-mail:
Institute for Orthopedic Research, St. Vincent's Medical Center, Jacksonville, Florida.
J Surg Orthop Adv. 2017;26(4):211-215.
Preoperative quadriceps muscle strength (isometric peak torque) was expectedly lower on the total knee arthroplasty side in comparison with the unaffected contralateral side and it was further reduced after surgery. This reduction continued for up to 6 months postoperatively. After 6 months, muscle strengths exceeded preoperative values and continued to increase for the following 2 years. From 2 to 5 years postoperatively, there was a tendency for decline; however, the quadriceps muscle strength still exceeded preoperative values. On the nonoperative side, the increase in muscle strength was detected 1 year after surgery and it was still noticeable at 5 years. Contralateral side improvement can be explained by the increased mobility of the patients. Knee Society Scores and function scores were significantly increased at 3 months after surgery and were significantly greater than preoperative values 5 years after surgery. SF-12 (physical score) exceeded preoperative values at 3 months and this increase was observed continuously over the 5-year follow-up. (Journal of Surgical Orthopaedic Advances 26(4):211-215, 2017).
与未受影响的对侧相比，全膝关节置换术侧的术前股四头肌力量（等长峰值扭矩）预期较低，且术后进一步降低。这种降低持续至术后6个月。6个月后，肌肉力量超过术前值，并在接下来的2年中持续增加。术后2至5年，有下降趋势；然而，股四头肌力量仍超过术前值。在非手术侧，术后1年检测到肌肉力量增加，且在5年时仍很明显。对侧的改善可通过患者活动度增加来解释。膝关节协会评分和功能评分在术后3个月显著增加，且在术后5年显著高于术前值。SF-12（身体评分）在术后3个月超过术前值，且在5年随访期间持续观察到这种增加。（《外科骨科进展杂志》26(4):211 - 215, 2017）
