Acetabular dysplasia and hip dislocation after selective premature fusion of the triradiate cartilage. An experimental study in rabbits

R. Gepstein, R. E. Weiss, T. Hallel

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Abstract

Premature fusion of the triradiate cartilage was obtained surgically in 10 three-week-old rabbits, and compared with isolated fusion of the ilio-ischial and of the ilio-pubic limbs of the triradiate cartilage in two further groups of 10 rabbits. Complete fusion caused acetabular dysplasia five weeks after operation in all animals and hip dislocation at nine weeks in half of them; ilio-ischial fusion had a comparable effect. Ilio-pubic fusion had only a minimal effect on acetabular development. The posterior position of the ilio-ischial limb in the acetabulum and its predominance in the formation of the triradiate cartilage in quadrupeds may have contributed to its decisive effect on acetabular development.

Original languageEnglish (US)
Pages (from-to)334-336
Number of pages3
JournalJournal of Bone and Joint Surgery - Series B
Volume66
Issue number3
StatePublished - Jan 1 1984

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ASJC Scopus subject areas

  • Surgery
  • Orthopedics and Sports Medicine

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