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The Bone & Joint Journal
Vol. 105-B, Issue 8 | Pages 935 - 942
1 Aug 2023
Bradley CS Verma Y Maddock CL Wedge JH Gargan MF Kelley SP

Aims

Brace treatment is the cornerstone of managing developmental dysplasia of the hip (DDH), yet there is a lack of evidence-based treatment protocols, which results in wide variations in practice. To resolve this, we have developed a comprehensive nonoperative treatment protocol conforming to published consensus principles, with well-defined a priori criteria for inclusion and successful treatment.

Methods

This was a single-centre, prospective, longitudinal cohort study of a consecutive series of infants with ultrasound-confirmed DDH who underwent a comprehensive nonoperative brace management protocol in a unified multidisciplinary clinic between January 2012 and December 2016 with five-year follow-up radiographs. The radiological outcomes were acetabular index-lateral edge (AI-L), acetabular index-sourcil (AI-S), centre-edge angle (CEA), acetabular depth ratio (ADR), International Hip Dysplasia Institute (IHDI) grade, and evidence of avascular necrosis (AVN). At five years, each hip was classified as normal (< 1 SD), borderline dysplastic (1 to 2 SDs), or dysplastic (> 2 SDs) based on validated radiological norm-referenced values.


Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_24 | Pages 4 - 4
1 May 2013
Gardner ROE Sharma OP Feng L Shin M Howard A Kelley S Wedge JH
Full Access

Aim

To compare the rate and severity of avascular necrosis following medial open and closed reduction in developmental hip dysplasia and the resulting influence on femoral and acetabular development.

Method

The radiographs and hospital records of 118 patients with dislocation of the hip were reviewed. 57 patients (66 hips) underwent medial open reduction and 61 patients (75 hips) underwent closed reduction. Mean follow-up was 10.9 years (5 years to 17.4 years). Avascular necrosis (AVN) was recorded according to the Bucholz and Ogden classification. The acetabular index was measured pre-operatively, at 1 and 4 years following surgery. The final radiograph was assigned a Severin grade. Sharp and centre-edge angles were recorded at final follow-up. A Severin grade I or II was considered a satisfactory result and a grade III to V an unsatisfactory result. Initial non-operative measures, such as Pavlik harness treatment and traction were documented. Additional surgical interventions were noted.


Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_24 | Pages 5 - 5
1 May 2013
Gardner ROE Bradley CS Narayanan UG Wedge JH Kelley SP
Full Access

Aim

To establish the incidence of clinically significant avascular necrosis (AVN) and the resultant influence on radiological outcome following medial open reduction for DDH.

Method

A systematic review of the literature was performed using Medline and Embase, from 1946 to 2012, to identify all relevant clinical studies. We excluded papers with a mean follow-up under 5 years. The effect of length of follow-up, outcome according to Severin, age at surgery, and type of growth disturbance were reviewed.


Orthopaedic Proceedings
Vol. 92-B, Issue SUPP_III | Pages 375 - 375
1 Jul 2010
Roposch A Spence G Hocking R Wedge JH
Full Access

Aim: To compare acetabular development and hip stability over time in patients treated for developmental dysplasia of the hip (DDH) by open reduction combined with either varusderotation (VDRO) or innominate (IO) osteotomies.

Method: Patients who underwent open reduction for DDH, combined with either VDRO (38 patients) or IO (33 patients), between 15 months and 4 years of age were reviewed. Both groups comprised a single surgeon consecutive series, differing only in the type of osteotomy performed. A total of 490 postoperative radiographs over a maximum follow-up period of 13.6 years were analyzed. We used repeated measures analysis of variance to compare the change in acetabular index (AI) as well as several other radiographic indices of acetabular development and hip stability over time.

Results: After osteotomy, the AI decreased in both groups but the magnitude of the decrease was significantly different between groups over time (p< 0.0001). The AI of patients undergoing VDRO never decreased as much as that of patients undergoing IO, with a mean difference of 10.4 degrees after 4 years (p< 0.0001). Similarly the IO group demonstrated more favourable acetabular architecture and hip stability over time compared to the VDRO group, as quantified by change in the acetabular floor thickness (p< 0.03), lateral centring ratio (p< 0.0001) and superior centring ratio (p < 0.0001).

Conclusions: Acetabular remodelling after IO was more effective at reversing acetabular dysplasia and maintaining hip stability than VDRO. Long-term follow-up of VDRO will be necessary to determine if late improvement occurs. IO may be preferable over VDRO in the treatment of hip dislocation after walking age.