Kim Min Wook, Kim Sang Min, Chung Young Yool
Department of Orthopaedic Surgery, Kwangju Christian Hospital, Gwangju, Korea.
Hip Pelvis. 2018 Mar;30(1):18-22. doi: 10.5371/hp.2018.30.1.18. Epub 2018 Mar 5.
This study was performed to characterize the natural history of squeaking sounds that occur following total hip arthroplasty (THA) using ceramic-on-ceramic bearing surfaces and its potential correlation with clinical and/or radiological results.
This study included 47 patients who underwent THA between April 1999 and April 2005, and had at least 10 years of follow up from the time of the operation. Squeaking sounds were detected in 10 out of the 47 cases (21.3%). Squeaking-associated factors (i.e., cause, time of onset, inducing motions, and continuity of the sound) were assessed.
Squeaking sounds: i) were detected an average of 46.2 months after operation, ii) occurred more frequently in patients with a high body mass index (BMI) compared to those with low BMI, and iii) most frequently detected when deep flexion of hip joint followed extension. In all 10 cases, the squeaking sound remained through the follow up period; 6 cases experienced no change in frequency and pitch, 4 cases experienced a decrease in frequency and pitch over time. The cause(s) of changes to squeaking sounds could not be determined.
The frequency and pitch of the squeaking sounds changed over time in a subset of patients. The squeaking sound did not appear to correlate with clinical results or survival of the prosthesis.
本研究旨在描述采用陶瓷对陶瓷关节面的全髋关节置换术（THA）后出现的摩擦音的自然病程及其与临床和/或放射学结果的潜在相关性。
本研究纳入了1999年4月至2005年4月期间接受THA且术后至少随访10年的47例患者。47例中有10例（21.3%）检测到摩擦音。评估了与摩擦音相关的因素（即原因、发病时间、诱发动作和声音的持续性）。
摩擦音：i）平均在术后46.2个月被检测到，ii）与低体重指数（BMI）患者相比，高BMI患者中更频繁出现，iii）在髋关节深度屈曲后伸展时最常被检测到。在所有10例病例中，摩擦音在随访期间一直存在；6例频率和音高无变化，4例频率和音高随时间降低。摩擦音变化的原因无法确定。
部分患者的摩擦音频率和音高随时间变化。摩擦音似乎与临床结果或假体生存率无关。
