Absence of gluteal muscle

Absence of gluteal muscle
Synonyms	Gluteal muscle deficiency
Pronounce	N/A
Specialty	N/A
Symptoms	Underdeveloped or missing gluteal muscles, hip instability, gait abnormalities
Complications	Hip dislocation, scoliosis, lower back pain
Onset	Congenital
Duration	Lifelong
Types	N/A
Causes	Genetic mutation, congenital disorder
Risks	Family history, genetic predisposition
Diagnosis	Physical examination, genetic testing, imaging studies
Differential diagnosis	Muscular dystrophy, spinal muscular atrophy, cerebral palsy
Prevention	N/A
Treatment	Physical therapy, orthopedic surgery, assistive devices
Medication	N/A
Prognosis	Variable, depends on severity and treatment
Frequency	Rare
Deaths	N/A

The congenital absence of the gluteal muscle was described in 1976, as occurring in a brother and sister with absence of gluteal muscles and with spina bifida occulta. It was thought to be caused by an autosomal recessive gene. There was a case of a 28 month old with renal ectopia who showed absence of the gluteal muscle with no spina bifida occulta. This is the only confirmed case of absence of gluteal muscle without spina bifida.

References

• "Congenital absence of gluteal muscles. Report of two sibs".Clin Genet.1976;10(3)

135–8.doi:10.1111/j.1399-0004.1976.tb00025.x.PMID:786514.