Ligamentum Teres Tenodesis in Medial Approach Open Reduction for Developmental Dislocation of the Hip

被引:38
|
作者
Bache, Christopher Edward [1 ]
Graham, H. Kerr [2 ,3 ,4 ]
Dickens, D. Robert V. [2 ]
Donnan, Leo [2 ]
Johnson, Michael B. [2 ]
Nattrass, Gary [2 ]
O'Sullivan, Mark [2 ]
Torode, Ian P. [2 ]
机构
[1] Birmingham Childrens Hosp, Birmingham, W Midlands, England
[2] Royal Childrens Hosp, Parkville, Vic 3052, Australia
[3] Univ Melbourne, Melbourne, Vic, Australia
[4] Murdoch Childrens Res Inst, Parkville, Vic, Australia
关键词
developmental dysplasia; hip surgery; medial open reduction;
D O I
10.1097/BPO.0b013e318184202c
中图分类号
R826.8 [整形外科学]; R782.2 [口腔颌面部整形外科学]; R726.2 [小儿整形外科学]; R62 [整形外科学(修复外科学)];
学科分类号
摘要
Background: When closed reduction of a developmental dislocation of the hip fails, some form of open reduction is required. In recent years, the many advantages of the medial approach open reduction have been emphasized. However, there have been suggestions that the rate of growth disturbance in the proximal femur and the requirement for secondary surgical procedures may be higher with this route than with others. The purpose of this study was to investigate the efficacy and safety of a modified medial approach open reduction, in which the stability of the reduction is enhanced by resection of the redundant ligamentum teres and suturing of the stump of the tendon to the anteromedial capsule. Methods: The hospital records and radiographs of 92 infants and children with 109 dislocated hips were reviewed retrospectively. Key demographic and pretreatment data were collected by the first author and compared with the outcome at the most recent follow-up. In addition, 69 children returned for a clinical evaluation by the first author. The outcome at the most recent follow-up was graded according to Severin, and associations were sought between pretreatment grade of dislocation according to Tonnis, the presence of ossific nucleus, changes in the acetabular index, the requirements for secondary surgery, associations with previous treatment, and the position of abduction in the postoperative cast. Results: At a mean follow-up of 9 years, 89% of hips were classified as Severin grade 1 or 2. Avascular necrosis (AVN) was classified according to the system of Kalamchi and MacEwen. The incidence of AVN was 41%, but two thirds of these were grade 1 (temporary irregular ossification), and the Severin grading in these hips was not compromised. The presence of ossification in the capital epiphysis and a range of abduction of less than 60 degrees in the hip spica were noted to be protective against the development of AVN. Three hips redislocated and required additional treatment. Thirty-eight hips required a total of 44 additional surgical procedures. Conclusions: We have demonstrated that it is possible to use a medial approach for open reduction of the congenitally dislocated hip in combination with tenodesis of the ligamentum teres to the anteromedial joint capsule. The incidence of growth disturbance in the proximal femur is high and cumulative with long-term follow-up. However, in this large series, the rate of hip stability, growth disturbance, and need for secondary surgery are comparable to other series. We conclude that the many advantages of open reduction by the medial approach outweigh the disadvantages.
引用
收藏
页码:607 / 613
页数:7
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