Girard Julien, Pansard Erwan, Ouahes Reda, Migaud Henri, Delay Cyril, Vasseur Laurent
Department of Orthopaedic Surgery, Roger Salengro Hospital, 2 Avenue Oscar Lambret, Lille, 59037, France,
Int Orthop. 2014 May;38(5):923-8. doi: 10.1007/s00264-013-2226-5. Epub 2013 Dec 10.
Cup design has been incriminated as the source of groin pain after hip resurfacing but has not been well described; thus, it was assessed in a prospective study looking at three implant types.
A group-match was done between three groups of hip resurfacing devices according to age, sex, body mass index, activity level, osteoarthritis aetiology and pre-operative scores.
The global groin pain rate was 5.7 % at six months and 2.7 % at last follow-up. Groin pain rate was significantly different between the three groups (p = 0.004) and had a strong influence on the subjective results (p = 0.04). No groin pain emerged between six months and last follow-up. No clinical differences were noted in Harris hip score and Merle d'Aubigné-Postel score at last follow-up. However, the Oxford hip score and Devane activity score were significantly lower for cups with macrostructures.
The low groin pain rate in this prospective cohort was probably secondary to the specific surgical technique used and seems to be correlated with cup design. Macrostructures on the external part of the cup could be significantly harmful.
髋臼杯设计被认为是髋关节表面置换术后腹股沟疼痛的根源，但尚未得到充分描述；因此，在一项针对三种植入物类型的前瞻性研究中对其进行了评估。
根据年龄、性别、体重指数、活动水平、骨关节炎病因和术前评分，对三组髋关节表面置换装置进行组间匹配。
六个月时总体腹股沟疼痛发生率为5.7%，末次随访时为2.7%。三组之间的腹股沟疼痛发生率有显著差异（p = 0.004），且对主观结果有强烈影响（p = 0.04）。六个月至末次随访期间未出现新的腹股沟疼痛。末次随访时，Harris髋关节评分和Merle d'Aubigné-Postel评分无临床差异。然而，具有宏观结构的髋臼杯的牛津髋关节评分和Devane活动评分显著更低。
该前瞻性队列中腹股沟疼痛发生率较低可能是由于所采用的特定手术技术，且似乎与髋臼杯设计相关。髋臼杯外部的宏观结构可能有显著危害。
