Objective: Prophylactic fixation of the contralateral hip in slipped capital femoral epiphysis (SCFE) is controversial, and no reliable method has been established to predict subsequent contralateral slip. The main purpose of this study was to evaluate if magnetic resonance imaging (MRI) performed at primary diagnosis could predict future contralateral slip.
Materials And Methods: Twenty-two patients with unilateral SCFE were included, all had MRI of both hips taken before operative fixation. Six different parameters were measured on the MRI: the MRI slip angle, the greatest focal widening of the physis, the global widening of the physis measured at three locations (the midpoint of the physis and 1 cm lateral and medial to the midpoint), periphyseal (epiphyseal and metaphyseal) bone marrow edema, the presence of pathological joint effusion, and the amount of joint effusion measured from the lateral edge of the greater trochanter. Mean follow-up was 33 months (range, 16-63 months). Six patients were treated for contralateral slip during the follow-up time and a comparison of the MRI parameters of the contralateral hip in these six patients and in the 16 patients that remained unilateral was done to see if subsequent contralateral slip was possible to predict at primary diagnosis.
Results: All MRI parameters were significantly altered in hips with established SCFE compared with the contralateral hips. However, none of the MRI parameters showed any significant difference between patients who had a subsequent contralateral slip and those that remained unilateral.
Conclusions: MRI taken at primary diagnosis could not predict future contralateral slip.
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http://dx.doi.org/10.1007/s00256-017-2735-1 | DOI Listing |
Acta Chir Orthop Traumatol Cech
September 2024
Ortopedická klinika 1. lékařské fakulty Univerzity Karlovy, IPVZ a Fakultní nemocnice Bulovka, Praha.
Skeletal Radiol
September 2024
Department of Orthopaedic Surgery, BC Children's Hospital, University of British Columbia, Vancouver, BC, Canada.
J Biomech
May 2024
Department of Human Movement Sciences, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands.
As the recovery from gait perturbations is coordinatively complex and error-prone, people often adopt anticipatory strategies when the perturbation is expected. These anticipatory strategies act as a first line of defence against potential balance loss. Since age-related changes in the sensory and neuromotor systems could make the recovery from external perturbations more difficult, it is important to understand how older adults implement anticipatory strategies.
View Article and Find Full Text PDFJ Child Orthop
April 2024
Department of Pediatric Surgery, section of pediatric orthopedic surgery, Inselspital, University of Bern, Bern, Switzerland.
Objectives: Slipped capital femoral epiphyses (SCFE) is a common pediatric hip disease with the risk of osteoarthritis and impingement deformities, and 3D models could be useful for patient-specific analysis. Therefore, magnetic resonance imaging (MRI) bone segmentation and feasibility of 3D printing and of 3D ROM simulation using MRI-based 3D models were investigated.
Methods: A retrospective study involving 22 symptomatic patients (22 hips) with SCFE was performed.
J Exp Biol
March 2024
Department of Biomechanics, University of Nebraska at Omaha, Omaha, NE 68182, USA.
While much attention has been paid to understanding slip-related falls in humans, little has been focused on curvilinear paths despite their prevalence, distinct biomechanical demands and increased slipping threat. We determined the mechanics, compensatory stepping reactions and fall risk associated with slips during fixed-speed walking across ranges of path curvature, slipped foot and slip onset phase contexts possible in the community, which builds upon previous work by examining speed-independent effects of curvilinear walking. Twenty-one participants experienced 15 unconstrained slips induced by a wearable friction-reducing device as motion capture and harness load cell data were recorded.
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