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Orthopaedic Proceedings
Vol. 103-B, Issue SUPP_11 | Pages 21 - 21
1 Sep 2021
Shah P Rajesh M Sedra F Aftab S Nadarajah R Montgomery A Ranganathan A
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Introduction

Traditionally correction of idiopathic paediatric scoliosis is done by hybrid fixation. This involves a judicious combination of mono-axial and poly-axial screw constructs. This has inherent perceived advantages with better deformity correction and maintaining alignment without loss of correction over time.

Study design

Single centre retrospective review of prospective collected data on the radiological analysis of idiopathic paediatric scoliosis corrections. The study compared hybrid screw constructs (poly-axial & mono-axial) to all poly-axial screw constructs over 28 months.


Orthopaedic Proceedings
Vol. 96-B, Issue SUPP_6 | Pages 27 - 27
1 Apr 2014
Eseonu K Hunt R Athanassacopoulos M Leong J Lam K Lucas J Ember T Tucker S Nadarajah R
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Aims:

Identifying and scoring risk factors that predict early wound dehiscence and progression to metalwork infection. Results of wound healing, eradication of infection and union of with the use of vacuum dressing. Compare results of serial washouts against early vacuum dressing in this group of children with significant medical co-morbidities.

Method:

A retrospective review of 300 patients with neuromuscular scoliosis who underwent posterior instrumented correction and fusion between 2008 and 2012 at two institutions. 10 patients had an early wound dehiscence which progressed to deep seated infection requiring wound washout(s) and subsequent vacuum dressing. Medical notes, clinical photographs and imaging were reviewed. Minimum follow up period was 14 months.


Orthopaedic Proceedings
Vol. 86-B, Issue SUPP_IV | Pages 495 - 495
1 Apr 2004
Mahaluxmivala J Nadarajah R Allen P Hill R
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Introduction The purpose of this study was to compare the time to union following acute shortening and subsequent lengthening versus Bone Transport using the Ilizarov external fixator.

Methods Eighteen patients with tibial non-unions (age range 26 to 63 years) were recruited between March 1995 and September 2001. Three subgroups of six patients each, were formed. Group 1 underwent Acute Shortening and subsequent Lengthening, whereas Group 2 underwent Bone Transport. Group 3 patients had defects < 1 cms but were still high energy injuries, therefore underwent application of a frame. This group was used as a comparison group. A proximal corticotomy was used for distraction osteogenesis. Bone grafting at the fracture or regenerate site was used if required to aid healing. All patients were followed-up to union. All three groups were similar for age, pre-injury health status including cigarette smoking. Ten infected non-unions were present. Most patients had at least two conventional operative interventions prior to referral to us for Ilizarov surgery. The mean bone resection in the Acute Shortening group (Group 1) was 4.6 cms and in the Bone Transport group (Group 2) was 5.9 cms. Patients in Group 2 had more procedures done before union was achieved. This included adjustment of frame/ reinsertion of wires to align transport segment for optimal docking and bone grafting at the docking/regenerate site. Four patients in Group 2 required bone grafting at the docking site compared to none in Group 1.

Results Eradication of infection and union was achieved in all patients with average time in frame being 12.1 months in the Acute Shortening group, 17.2 months in the Bone Transport group and 8.0 months in the Frame stabilisation group. Using Paley’s bone result evaluation system, an excellent result was achieved in all patients of all groups. However, patients in the Acute Shortening group had a shorter time to union and needed fewer procedures.

Conclusions We recommended that where feasible, acute shortening and lengthening is preferable to bone transport due to shorter union time and fewer procedures undertaken to achieve union. If this is not possible due to large defects, then a combination of acute shortening with transport to bridge the gap should be considered.