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Do changes in torsional magnetic resonance imaging reflect improvement in gait after femoral derotation osteotomy in patients with cerebral palsy?
- Source :
- INTERNATIONAL ORTHOPAEDICS, 37(11), 2193-2198. SPRINGER
- Publication Year :
- 2013
-
Abstract
- Purpose Femoral derotation osteotomy (FDO) is commonly used to correct internal rotation gait (IRG) in spastic diplegia. The purpose of this study was to investigate whether the extent of intraoperative derotation is reflected in changes in static (clinical ROM and anteversion angle measured on torsional MRI) and dynamic parameters (transverse plane kinematics in three-dimensional gait analysis) after FDO in children with spastic diplegia.Methods In a prospective study, 30 children with spastic diplegia and IRG were treated with FDO as part of a multilevel surgery and were examined pre- and postoperatively clinically, by three-dimensional gait analysis and by torsional MRI according to a standardised protocol.Results A correlation (r = 0.317, p = 0.015) between the extent of intraoperative derotation and mean hip rotation in stance as well as the anteversion angle measured on torsional MRI (r = 0.454, p Conclusions Significant improvements were found in IRG after FDO, confirming the results of previous studies. There was no correlation between the anteversion measured on MRI and the mean hip rotation in stance in 3D gait analysis before or after FDO. Thus, the data suggest that if the intraoperative extent of derotation is determined only by the anteversion angle, the result will not be better after FDO. It might only help to avoid retroversion and indicate the maximum amount of femoral derotation. In this study the extent of the intraoperative derotation was orientated at the preoperative midpoint of rotation. Based on the small, but significant correlation between the clinical midpoint and the mean hip rotation in stance in the gait analysis, determination of the intraoperative extent of derotation according to the mean hip rotation in stance seems to give the best results.
- Subjects :
- Male
medicine.medical_specialty
Adolescent
Rotation
SURGERY
medicine.medical_treatment
Torsion, Mechanical
CHILDREN
SPASTIC DIPLEGIA
Osteotomy
INTERNAL-ROTATION GAIT
Cerebral palsy
Gait (human)
Torsional MRI
Spastic diplegia
DISTAL
medicine
HIP ROTATION
Humans
Orthopedics and Sports Medicine
Femur
KINEMATICS
Postoperative Period
Prospective Studies
Range of Motion, Articular
Child
Internal rotation gait
Gait
Orthodontics
Original Paper
business.industry
Cerebral Palsy
medicine.disease
Magnetic Resonance Imaging
Surgery
Femoral derotation
Treatment Outcome
Gait analysis
Orthopedic surgery
Preoperative Period
ANTETORSION
Female
Hip Joint
business
Range of motion
ANTEVERSION
Subjects
Details
- ISSN :
- 14325195 and 03412695
- Volume :
- 37
- Issue :
- 11
- Database :
- OpenAIRE
- Journal :
- International orthopaedics
- Accession number :
- edsair.doi.dedup.....b749fb6be5a7b133e1b600ed9e83d0d8