[Tenotomy of the psoas muscle in slow reduction of congenital hip dislocations].
OBJECTIVE
The aim of this study was to relate the efficacy of cutting the psoas tendon in case of high congenital hip dislocation treated by slow reduction according to Somerville-Petit.


METHODS
Twenty psoas tenotomies were realised between 1982 and 1992. The average age was 11 months 15 days old, they were 15 girls and 5 boys. Among them, only 9 patients had never been treated.


METHODS
By a short surgical approach close to the lateral lip of Scarpa's triangle, we cut the psoas tendon at the musculotendinous junction doing this suppresses the obstacle that interferes with the femoral head coming down.


RESULTS
Results have been evaluated on clinically and especially radiologically. All hips remain stable except one case. A graduated subluxation of the hip occured after removal of the plaster. 18 hips have been revised between the third and fifth year. Clinical results were excellent, on radiological controls 5 hips were considered flawless, 11 satisfying, and 2 were imperfect. Only 2 children have been seen ten years later with excellent clinical and radiological results.


CONCLUSIONS
The hypertrophic psoas tendon interposes between the femoral head and the acetabulum creasing the capsule and the limbus. Cutting tendon of the psoas will decrease the numerous unexplained failures that occured during slow reduction according to Sommerville-Petit method. The use of these surgical techniques may make more outstanding the tenotomies time.


CONCLUSIONS
Tenotomy of the psoas tendon realized by a short surgical approach without any articular effraction, allowed us to obtain complete reduction of the hips dislocation in these 20 patients.
Gennari
J M
JM
Service de Chirurgie infantile et Orthopédique, CHU Nord, Marseille.
Merrot
T
T
Piclet-Legre
B
B
Bergoin
M
M
D002370:Casts, Surgical; D005260:Female; D005500:Follow-Up Studies; D006618:Hip Dislocation, Congenital / Q000628:therapy*; D006801:Humans; D008297:Male; D011379:Prognosis; D016658:Psoas Muscles / Q000601:surgery*; D016059:Range of Motion, Articular; D013710:Tendons / Q000601:surgery*; D014143:Traction / Q000379:methods
La ténotomie du psoas au cours de la réduction lente des luxations congénitales de hanche.