Shea K P, Kalamchi A, Thompson G H
J Pediatr Orthop. 1986 Mar-Apr;6(2):215-9. doi: 10.1097/01241398-198603000-00017.
Traumatic anterior dislocations of the hip during childhood are rare injuries. Although a concentric reduction can usually be achieved with closed techniques, open reduction is occasionally required. We recently treated two children, 10 and 13 years of age, with nonconcentric closed reductions following traumatic anterior dislocation sustained 6 weeks and 6 months previously, respectively. Preoperative evaluation revealed intraarticular entrapment of the acetabular epiphysis and its contiguous labrum as the cause of the nonconcentric reduction. This was confirmed at surgery. Although displacement of the acetabular epiphysis has not been previously described, it is probably a common source for cartilaginous and osteocartilaginous fragments that have been recognized at open reduction following both traumatic anterior and posterior hip dislocations in children. Damage to this secondary center of ossification does not appear to affect adversely further growth and development of the acetabulum.
儿童创伤性髋关节前脱位是罕见的损伤。虽然通常可通过闭合技术实现同心圆复位，但偶尔仍需要切开复位。我们最近治疗了两名儿童，分别为10岁和13岁，他们分别在6周和6个月前遭受创伤性前脱位后接受了非同心圆闭合复位。术前评估显示髋臼骨骺及其相邻的盂唇关节内嵌入是导致非同心圆复位的原因。手术中证实了这一点。虽然髋臼骨骺移位此前尚未见报道，但它可能是儿童创伤性髋关节前脱位和后脱位切开复位后所识别的软骨和骨软骨碎片的常见来源。这个继发骨化中心的损伤似乎并未对髋臼的进一步生长发育产生不利影响。
