Back to Search
Start Over
Acetabular morphology in slipped capital femoral epiphysis: comparison at treatment onset and skeletal maturity.
- Source :
-
Journal of children's orthopaedics [J Child Orthop] 2018 Oct 01; Vol. 12 (5), pp. 444-453. - Publication Year :
- 2018
-
Abstract
- Purpose: To investigate changes in acetabular morphology during the follow-up of slipped capital femoral epiphysis (SCFE) and search for factors associated with acetabular dysplasia at skeletal maturity.<br />Methods: We evaluated 108 patients with unilateral SCFE (mean age at slip, 12.3 years sd 1.7) to skeletal maturity, with a minimum follow-up of two years (median 4.5 years; interquartile range 3.2 to 6.2). Acetabular parameters obtained from initial and most recent radiographs included the lateral centre-edge angle (LCEA), Tönnis angle (TA) and acetabular depth-width ratio (ADR). Acetabular dysplasia was considered for LCEA < 20° or TA > 10°. Femoral parameters consisted of the most recent head diameter, neck-shaft angle, neck length, articulotrochanteric distance and alpha angle.<br />Results: At SCFE onset, the affected hip showed a slightly lower LCEA (26.4° sd 6.1° versus 27.3° sd 5.7°; p = 0.01) and ADR (330 sd 30 versus 340 sd 30; p < 0.001) compared with the uninvolved hip. At final follow-up, the affected hip showed lower LCEA (24.5° sd 7.6° versus 28.8°sd 6.6°; p < 0.001) and ADR (330 sd 40 versus 350 sd 40; p < 0.001), and TA was larger (5.5° sd 5.4° versus 2.3° sd 4.2°; p < 0.001) compared with the uninvolved hip. Acetabular dysplasia was observed in 27 (25%) of 108 hips with SCFE. Femoral head overgrowth, age at slip and SCFE severity were independent factors associated with acetabular dysplasia (p < 0.05).<br />Conclusion: Acetabular coverage and depth are not increased in SCFE, and the acetabular coverage tends to decrease up to skeletal maturity. A potential disturbance in the acetabular growth and remodelling exists mainly for young children with severe SCFE, and a potential for acetabular insufficiency may be observed at the diagnosis and follow-up of SCFE.<br />Level of Evidence: Prognostic Level IV.
Details
- Language :
- English
- ISSN :
- 1863-2521
- Volume :
- 12
- Issue :
- 5
- Database :
- MEDLINE
- Journal :
- Journal of children's orthopaedics
- Publication Type :
- Academic Journal
- Accession number :
- 30294368
- Full Text :
- https://doi.org/10.1302/1863-2548.12.180057