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The Bone & Joint Journal
Vol. 100-B, Issue 5 | Pages 680 - 684
1 May 2018
Perry DC Wright JG Cooke S Roposch A Gaston MS Nicolaou N Theologis T

Aims

High-quality clinical research in children’s orthopaedic surgery has lagged behind other surgical subspecialties. This study used a consensus-based approach to identify research priorities for clinical trials in children’s orthopaedics.

Methods

A modified Delphi technique was used, which involved an initial scoping survey, a two-round Delphi process and an expert panel formed of members of the British Society of Children’s Orthopaedic Surgery. The survey was conducted amongst orthopaedic surgeons treating children in the United Kingdom and Ireland.


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_11 | Pages 17 - 17
1 Jun 2017
Marks A Hashemi-Nejad A Cortina-Borja M Roposch A
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Purpose

To determine (i) the relationship between osteonecrosis and hip function, physical function and quality of life in adolescents and young adults treated for DDH; and (ii) how affected children change over 10 years.

Methods

We included 109 patients (mean age 19.2 ± 3.8 years) with osteonecrosis and 30 age-matched patients without osteonecrosis following DDH treatment between 1992–2005. All completed valid patient-reported outcome measures to quantify their hip function (maximum score 100); physical function (maximum score 100); and quality of life (maximum score 1). Of these, 39 patients had been followed prospectively since 2006, allowing quantification of within-person changes over time.

We graded all radiographs for severity of osteonecrosis, residual dysplasia, subluxation and osteoarthritis. We determined the association between patient-reported outcomes and radiographic severity of osteonecrosis using mixed-effects regression analysis; and repeated-measures analysis of variance to quantify person changes over time. We adjusted for age, prior operations and acetabular dysplasia.


Introduction:

Risk factors for developmental dysplasia of the hip (DDH) in early infancy have never been validated from basic principles; their relevance remains controversial.

Purpose:

To determine risk factors for DDH using newly developed diagnostic criteria based on international consensus.


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXIV | Pages 13 - 13
1 May 2012
Roposch A Liu L Kulaveerasingham D
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Purpose of the study

To determine the consistency with which specialist orthopaedic surgeons rate the importance of criteria for the diagnosis of DDH which had previously been generated in a BSCOS and EPOS multi national study.

Methods

163 members of BSCOS received a questionnaire containing 37 criteria that, in a previous study, had been found to be important for the diagnosis of DDH in infants under 8 weeks. A visual analogue scale was used to rate the importance of each criterion in the diagnosis of DDH. We determined the consistency using the intra-class correlation coefficient (values > .80 are anticipated). Analyses were preformed for all members of BSCOS and for geographic regions.


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_VI | Pages 2 - 2
1 Mar 2012
Odeh O Wedge J Roposch A
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Purpose

To determine the effect of the femoral head ossific nucleus on the development of avascular necrosis (AVN) after reduction of a dislocated hip.

We included consecutive patients treated for a dislocated hip secondary to DDH with either closed or open reduction under the age of 30 months (mean, 9.6□4.8) in this retrospective cohort study. 85 patients or 100 hips were included. Radiographs were analysed for the presence of the ossific nucleus at the time of hip reduction, and for the presence of AVN at 9.2□3.4 years after hip reduction by 3 blinded assessors. There was no significant effect of the femoral head ossific nucleus on the development of osteonecrosis, with 16/40 (40%) cases of osteonecrosis in infants with an ossific nucleus absent compared with 18/60 (30%) in the group with an ossific nucleus (adjusted relative risk = 0.83; 95% CI = 0.38 to 1.83; p=0.65). When only radiographic changes of grade II or worse were considered osteonecrosis, the association remained statistically insignificant (adjusted relative risk = 0.84; 95% CI = 0.35 to 2.00; p=0.69).

Conclusion

Our study reports the longest follow-up addressing the question of a potential protective effect of the ossific nucleus on the development of AVN. We could not demonstrate such an effect. Strategies aimed at delaying the treatment of a dislocated hip in the absence of the ossific nucleus cannot be recommended as they will not affect the risk for subsequent AVN.


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_VI | Pages 4 - 4
1 Mar 2012
Ashby E Katchburian M Paterson M Neyt J Roposch A
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Purpose

To determine the impact of sonographic information on surgeons' diagnostic thinking and decision-making in the management of infants with clinically suspicious hip dysplasia.

Four experienced consultant surgeons examined 66 hips referred for possible hip dysplasia and reported for each hip (i) the confidence level (visual analogue scale 0-100) about the diagnosis of this hip, and (ii) how they would manage the hip. Each infant was referred to ultrasound and the same surgeon repeated the rating with the sonographic information available. We determined the efficiency in diagnostic thinking and calculated the mean gain in diagnostic confidence that was provided by the sonographic information. We also determined the therapeutic efficacy, ie the impact of ultrasound information on surgeons’ management plans.

The ultrasound led to a change in diagnosis in 34/66 (52%) hips. However, the management plan only changed in 21/66 (32%) hips. The mean gain in reported diagnostic confidence was 19.37 (95% CI = 17.27, 21.47). If the treatment plan did not change, there still was a gain in diagnostic confidence but this gain was small with a mean value of 8 (95% CI = 5.29, 10.70). However, if the ultrasound led to a change of the treatment plan, the mean gain in diagnostic confidence was much higher with 46 (95% CI = 30.53, 60.79). The difference was -37.67 (P < 0.0001). Ultrasound was most useful (mean gain >30) in hips demonstrating limited abduction or a positive Galeazzi sign.

Conclusion

In this study, the sonographic information only led to a modest gain in diagnostic confidence. Ultrasound was particularly helpful for surgeons in clarifying hips with limited abduction or signs of leg length difference.


The Journal of Bone & Joint Surgery British Volume
Vol. 81-B, Issue 3 | Pages 398 - 401
1 May 1999
Roposch A Steinwender G Linhart WE

Primary skin closure after surgery for club foot in children can be difficult especially in revision operations. Between 1990 and 1996 a soft-tissue expander was implanted in 13 feet before such procedures. Two were primary operations and 11 were revisions. A standard technique was used for implantation of the expander. Skin augmentation was successful in 11 cases. There was failure of one expander and one case of wound infection. Sufficient stable skin could be gained at an average of five weeks. Primary skin closure after surgery was achieved in 12 cases.

We conclude that soft-tissue expansion can be used successfully before extensive surgery for club foot. The method should be reserved for revision procedures and for older children. The technique is not very demanding, but requires experience to achieve successful results.