Klit Jakob, Gosvig Kasper, Jacobsen Steffen, Sonne-Holm Stig, Troelsen Anders
The Orthopaedic Department, University Hospital Hvidovre, Copenhagen, Denmark.
Hip Int. 2011 Sep-Oct;21(5):537-41. doi: 10.5301/HIP.2011.8678.
It is becoming increasingly evident that hip joint deformities may be major contributors to the development of osteoarthritis, and the term 'idiopathic osteoarthritis' may be inappropriate in many cases. Our study cohort was derived from the Copenhagen Osteoarthritis Sub-study, a cross sectional population-based database of 4151 individuals, all of whom had a standard anteroposterior weight-bearing pelvic radiograph taken. Hip joints were classified according to type and degree of deformity. We defined hip osteoarthritis by a minimum joint space width of < or = 2 mm. This cut-off has a significant relationship in both sexes with the clinical presentation. The study cohort which fulfilled these inclusion criteria consisted of 322 females (149 right hips and 173 left hips) and 162 males (77 right hips and 85 left hips) with osteoarthritis. We found an overall prevalence of predisposing hip deformities in females of 62.4% and in males of 78.9%. Minor and major deformities showed the same prevalence. Both sexes had a comparable prevalence of minor and major hip joint deformity, except for pistol grip deformity, which was more prevalent in men. We concluded that 'idiopathic osteoarthritis' is uncommon, and that even minor predisposing deformities are associated with hip osteoarthritis.
越来越明显的是，髋关节畸形可能是骨关节炎发展的主要因素，在许多情况下，“特发性骨关节炎”这一术语可能并不恰当。我们的研究队列来自哥本哈根骨关节炎子研究，这是一个基于人群的横断面数据库，包含4151名个体，他们均拍摄了标准的前后位负重骨盆X光片。髋关节根据畸形类型和程度进行分类。我们将髋关节骨关节炎定义为关节间隙宽度≤2毫米。这一临界值在两性中均与临床表现有显著关系。符合这些纳入标准的研究队列包括322名患有骨关节炎的女性（149个右髋关节和173个左髋关节）和162名男性（77个右髋关节和85个左髋关节）。我们发现，女性中易患髋关节畸形的总体患病率为62.4%，男性为78.9%。轻度和重度畸形的患病率相同。除手枪柄畸形在男性中更为普遍外，两性中轻度和重度髋关节畸形的患病率相当。我们得出结论，“特发性骨关节炎”并不常见，即使是轻度的易患畸形也与髋关节骨关节炎有关。
