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Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_11 | Pages 18 - 18
1 Jun 2017
Finlayson L Robb J Czuba T Hägglund G Gaston M
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Purpose

This study re-examined the influence of the head shaft angle (HSA) on hip dislocation in a large cohort of children with cerebral palsy (CP).

Method

The radiographs of GMFCS Level III – V children from a surveillance programme database were analysed and migration percentage (MP) and HSA measured. The first radiograph of each patient was taken to remove the effect of the surveillance programme. The most displaced hip in each child, by MP, was used for analysis and the corresponding HSA measured. Hip displacement was defined as MP > 40% and logistic regression was used to adjust for HSA, GMFCS, age and sex.


Orthopaedic Proceedings
Vol. 98-B, Issue SUPP_15 | Pages 10 - 10
1 Sep 2016
Tsang S McMorran D Robinson L Robb J Gaston M
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To evaluate the outcome of combined tibialis anterior tendon shortening (TATS) and calf muscle-tendon lengthening (CMTL) in spastic equinus.

Prospectively collected data was analysed in 26 patients with hemiplegic (n=13) and diplegic (n=13) cerebral palsy (CP) (GMFCS level I or II, 14 males, 12 females, age range 10–35 years; mean 16.8 years). None had received botulinum toxin A injections or surgery in the preceding six and 12 months respectively. All patients had pre-operative 3D gait analysis and a further analysis at a mean of 17.1 months (± 5.6months) after surgery. None was lost to follow-up. Twenty-eight combined TATS and CMTL were undertaken and 19 nineteen patients had additional synchronous multilevel surgery. At follow-up 79% of patients had improved foot positioning at initial contact. Statistically significant improvements were seen in the Movement Analysis Profile for ankle dorsi-/plantarflexion (4.25, p=0.032), maximum ankle dorsiflexion during swing phase (11.68°, p<0.001), and Edinburgh Visual Gait Score (EVGS) (4.85, p=0.014). Diplegic patients had a greater improvement in the EVGS than hemiplegics (6.27 -vs- 2.21, p = 0.024).

The originators of combined TATS and CMTL showed that it improved foot positioning during gait. The present study has independently confirmed favourable outcomes in a similar patient population and added additional outcome measures, the EVGS, foot positioning at initial contact, and maximum ankle dorsiflexion during swing phase. Study limitations include short term follow-up in a heterogeneous population and that 19 patients had additional surgery. However, distinguishing between the natural history of CP and interventions and isolating the effects of one intervention from others in multilevel surgery are well recognised difficulties in cohort studies in CP. TATS combined with CMTL is a recommended option for spastic equinus in ambulatory patients with CP.


Orthopaedic Proceedings
Vol. 97-B, Issue SUPP_9 | Pages 12 - 12
1 Aug 2015
McMorran D Herman J Robb J Gaston M
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A goal attainment scale (GAS) was used to evaluate outcomes of surgical and non-surgical interventions to improve gait in children with diplegic cerebral palsy (CP).

Personal goals were recorded pre-intervention from children and/or their carers attending the Edinburgh Gait Laboratory since 2012. Twenty children underwent orthopaedic surgery (Group 1) and 25 children underwent a non-orthopaedic intervention (Group 2). Patients were excluded if the intervention was <9 months before the study period. Post-operatively children and/or their carers were contacted by telephone to complete the mGAS questionnaire, rating the achievement of goals on a 5-point scale. The majority of goals related to structure and function and were similar between groups, with goals relating to stability and lower limb structure most frequently recorded. Attaining an improvement in pain was stated more frequently by Group 1 children. The GAS formula was used to transform the composite GAS into a standardised measure (T-score) for each patient. A t-test was used to determine if the change in T-score was significantly different from 0, i.e. no change. Both groups on average achieved their goals (mean change in T-score for Group 2 11.1, vs 21.1 for Group 1). The difference between these two means was significant (p = 0.012). Additionally 16 children had undergone a follow-up gait analysis, but the relationship between the change in Gait Profile Score and GAS, assessed by Pearson's correlation coefficient was statistically insignificant.

Both surgical and non-surgical interventions enabled children to achieve their goals, although Group 1 reported higher achievement. GAS reflect patients’ aspirations and may be as relevant as post-intervention kinematic or kinetic outcomes.