背景:髋臼周围弯曲截骨术需要髋屈肌的脱离和缩回。在这项研究中,我们在髋臼周围弯曲截骨术后不久通过磁共振成像(MRI)评估了髋关节屈肌状态.
方法:我们在2017年8月至2019年12月进行髋臼周围弯曲截骨术后1周和3个月通过MRI对56例患者的60髋进行了回顾性评估。我们将屈肌的状况分类如下:0级,正常;I级,应变/水肿;II级,部分撕裂;和III级,完全撕裂。
结果:手术后一周,在12.0和88.0%的臀部中,the肌被分类为I级和II级;腰大肌在22.0、72.0和6.0%中被分类为0级,I级和II级;在6.0、62.0和32.0%中,sartorius肌被分类为0级,I级和II级;股直肌在86.0和14.0%中被分类为0级和I。分别。3个月时,腰大肌的82.0、88.0和96.0%,Sartorius,和股直肌,分别,改善到0级,而Ii和II级分别为94.0和6.0%,分别。3个月时髂肌的这些变化与患者特征无显著相关性,射线照相数据,或临床评分。
结论:所有的liacus,78%的腰大肌,94%的sartorius,髋臼周围弯曲截骨术1周后,14%的股直肌在MRI上出现异常。然而,3个月时,只有18%的腰大肌,12%的sartorius,4%的股直肌出现异常,而所有的髂肌仍出现异常。这些异常没有显著影响临床评分。
BACKGROUND: Curved periacetabular osteotomy requires detachment and retraction of the hip flexors. In this study, we evaluated hip flexor muscle status by magnetic resonance imaging (MRI) shortly after curved periacetabular osteotomy.
METHODS: We retrospectively evaluated 60 hips of 56 patients by MRI 1 week and 3 months after curved periacetabular osteotomy performed from August 2017 to December 2019. We classified the condition of the flexors as follows: Grade 0, normal; Grade I, strain/edema; Grade II, partial tear; and grade III, complete tear.
RESULTS: At 1 week after surgery, the iliacus muscle was classified as grades I and II in 12.0 and 88.0% of hips; psoas as grades 0, I and II in 22.0, 72.0, and 6.0%; sartorius muscle as grades 0, I and II in 6.0, 62.0, and 32.0%; and rectus femoris muscle as grades 0 and I in 86.0 and 14.0%, respectively. At 3 months, 82.0, 88.0, and 96.0% of psoas, sartorius, and rectus femoris muscles, respectively, had improved to grade 0, whereas the iliacus was grades I and II in 94.0 and 6.0%, respectively. These changes in the iliacus muscle at 3 months were not significantly associated with patient characteristics, radiographic data, or clinical scores.
CONCLUSIONS: All the iliacus, 78% of psoas, 94% of sartorius, and 14% of rectus femoris muscles appeared abnormal on MRI 1 week after curved periacetabular osteotomy. However, at 3 months, only 18% of psoas, 12% of sartorius, and 4% of rectus femoris muscles appeared abnormal, whereas all iliacus muscles still appeared abnormal. These abnormalities did not significantly affect clinical scores.