Correlation between the prevalence of herniation pits of femoral neck and anatomical parameters related to femoroacetabular impingement: multislice CT study
Huang Yaoqu*, Li Junhong, Liang Zhenhua, Chen Weiguo
Room of MRI, Foshan Hospital of Traditional Chinese Medicine, Foshan 528000, China
Abstract：Objective To investigate the correlation between the presence of herniation pits and anatomical parameters related to femoroacetabular impingement(FAI) based on multislice computed tomography.Methods From June 2013 to December 2014, 352 consecutive patients underwent 64-slice CT scan in CT Room of Foshan Hospital of Traditional Chinese Medicine for symptom of abdomen or pelvis that included the hip in the scan range were collected. Seventy-nine herniation pits were observed in sixty-three patients, and the hip joints were divided into the observation group and the control group according to with or without herniation pits. Sixty-three patients with matched sex and age but without pits were randomly selected as negative control group. The alpha angles, head-neck offset ratio, width of femoral head-neck junction and upper femoral neck, acetabular anteversion angle, anterior and posterior acetabublar sector angle, and hip index of hips were measured. The difference of morphological indicators among these three groups was statistically analysed by one-way ANOVA.Results The anatomical parameters of proximal femur and acetabulum of the observation group and the control group had no statistically significant difference(all P values＞0. 05). The width of femoral head-neck junction and upper femoral neck, and alpha angles of the observation group and the control group were greater than those in the negative control group(all P values＜0.05). The head-neck offset ratio of the observation group and the control group was smaller than those in the negative control group(all P values＜0.05). The difference of diameter of femoral head, and acetabublar anatomical parameters(acetabular anteversion angle, anterior and posterior acetabublar sector angle, and hip index) among three groups had no significant difference(all P values＞0.05).Conclusions Herniation pits are associated with Cam-type FAI abnormalities of proximal femur.
黄耀渠,李均洪,梁振华,陈卫国. 股骨颈疝窝与股骨髋臼撞击综合征相关解剖学异常的多层螺旋CT研究[J]. 中华解剖与临床杂志, 2016, 21(1): 18-21.
Huang Yaoqu, Li Junhong, Liang Zhenhua, Chen Weiguo. Correlation between the prevalence of herniation pits of femoral neck and anatomical parameters related to femoroacetabular impingement: multislice CT study. Chinese Journal of Anatomy and Clinics, 2016, 21(1): 18-21.
Pitt MJ, Graham AR, Shipman JH, et al. Herniation pit of the femoral neck[J]. AJR Am J Roentgenol, 1982, 138(6): 1115-1121. DOI: 10.2214/ajr.138.6.1115
[2]
Panzer S, Augat P, Esch U. CT assessment of herniation pits: prevalence, characteristics, and potential association with morphological predictors of femoroacetabular impingement[J]. Eur Radiol, 2008, 18(9): 1869-1875. DOI: 10.1007/s00330-008-0952-7
[3]
Guo Z, Xu L, Su YB, et al. Correlation between the prevalence of herniation pits and the α angle of the hip: computed tomography evaluation in healthy Chinese adults[J]. BMC Musculoskelet Disord, 2013, 14: 288. DOI: 10.1186/1471-2474-14-288
[4]
Ji HM, Baek JH, Kim KW, et al. Herniation pits as a radiographic indicator of pincer-type femoroacetabular impingement in symptomatic patients[J]. Knee Surg Sports Traumatol Arthrosc, 2014, 22(4): 860-866. DOI: 10.1007/s00167-013-2777-4
Leunig M, Beck M, Kalhor M, et al. Fibrocystic changes at anterosuperior femoral neck: prevalence in hips with femoroacetabular impingement[J]. Radiology, 2005, 236(1): 237-246. DOI: 10.1148/radiol.2361040140
[8]
Van Houcke J, Yau WP, Yan CH, et al. Prevalence of radiographic parameters predisposing to femoroacetabular impingement in young asymptomatic Chinese and white subjects[J]. J Bone Joint Surg Am, 2015, 97(4): 310-317. DOI: 10.2106/JBJS.M.01538
[9]
Ross JR, Bedi A, Stone RM, et al. Characterization of symptomatic hip impingement in butterfly ice hockey goalies[J]. Arthroscopy, 2015, 31(4): 635-642. DOI: 10.1016/j.arthro.2014.10.010
[10]
Riley GM, Mcwalter EJ, Stevens KJ, et al. MRI of the hip for the evaluation of femoroacetabular impingement; past, present, and future[J]. J Magn Reson Imaging, 2015, 41(3): 558-572. DOI: 10.1002/jmri.24725
[11]
Agricola R, Waarsing JH, Thomas GE, et al. Cam impingement: defining the presence of a cam deformity by the alpha angle: data from the CHECK cohort and Chingford cohort[J]. Osteoarthritis Cartilage, 2014, 22(2): 218-225. DOI: 10.1016/j.joca.2013.11.007.
2016, Vol. 21 
