Bony morphology of the hip in skilled ballet dancers in comparison with athletes.
Eur Radiol. 2017 Jul;27(7):3042-3049
Authors: Mayes S, Ferris AR, Smith P, Garnham A, Prepare dinner J
OBJECTIVES: To check hip bony morphology between ballet dancers and a sporting management group and to find out the connection with hip ache.
METHODS: Thirty-three skilled ballet dancers and 33 age- and sex-matched athletes accomplished questionnaires, together with the Copenhagen Hip and Groin Consequence Rating (HAGOS), and underwent scientific testing and three.Zero-T magnetic resonance imaging to measure acetabular protection with lateral centre edge angles, femoral head-neck junction concavity with alpha angles at anterior and superior positions, femoral neck-shaft angles, and acetabular model angles.
RESULTS: Bony morphological measures fell inside regular ranges. Dancers had greater neck-shaft angles (dancers 134.6?±?four.6°/athletes130.eight?±?four.7°, p?=?Zero.002), decrease acetabular model angles (13.5?±?four.7°/17.1?±?four.7°, p?=?Zero.003), decrease superior alpha angles (38.9?±?6.9°/46.7?±?10.6°, p?<?Zero.001), related anterior alpha angles (43.6?±?eight.1/46?±?7°, p?=?Zero.2), and related lateral centre edge angles (28.eight?±?four.6°/30.eight?±?four.5°, p?=?Zero.07) in comparison with athletes. Irregular morphology was detected in dancers: three% acetabular dysplasia (athletes Zero), 15% borderline dysplasia (6%), 24% cam morphology (33%), 24% coxa valga (6%), and 21% acetabular retroversion (18%). The HAGOS ache scores correlated reasonably with acetabular model (r?=?-Zero.43, p?=?Zero.02) in dancers, with no different correlation between ache and morphological parameters in both group.
CONCLUSIONS: Skilled ballet dancers have hip bony morphology that differentiates them from athletes. Hip ache correlated poorly with bony morphology.
KEY POINTS: • Ballet dancers have hip bony morphology that will permit excessive hip movement. • Morphological parameter means fell inside regular reference intervals in dancers. • Bony morphology correlates poorly with hip ache. • The chance of hip harm as a result of irregular morphology requires potential research.
PMID: 27957636 [PubMed – indexed for MEDLINE]