Influence of pelvic osteotomy on birth canal size

R. T. Loder, L. A. Karol, S. Johnson

Research output: Contribution to journalArticlepeer-review

28 Scopus citations


Six pelvic osteotomies (Salter, Sutherland, Steel, Tönnis, Chiari, and periacetabular) were performed on the right hemipelvis of adult female pelvic plastic models. Each pelvis underwent conventional X-ray and computed tomographic digital pelvimetry before and after osteotomy. The change in the anteroposterior and transverse dimensions at the inlet, midpelvis, and outlet were calculated. None of the osteotomies significantly decreased the inlet. The Salter and Sutherland osteotomies decreased the midpelvis to borderline low. The Salter, Sutherland, and Steel osteotomies significantly decreased the pelvic outlet. These changes correlated closely with those in living patients. Much of this decrease is nullified when the osteotomy is performed prior to the pubertal growth spurt.

Original languageEnglish (US)
Pages (from-to)210-214
Number of pages5
JournalArchives of Orthopaedic and Trauma Surgery
Issue number5
StatePublished - Sep 1993

ASJC Scopus subject areas

  • Surgery
  • Orthopedics and Sports Medicine


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