Cryosurgical Epiphysiodesis in the Dog

B. A. KRAMEK, L. J. WALLACE, J. A. DOWDLE, D. M. BARNES

Research output: Contribution to journalArticle

Abstract

Transphyseal freezing of the canine distal femur was evaluated to determine its effect on physeal growth and closure. A specially designed cryoprobe was used to freeze the distal right femoral physis in 17 immature dogs. The left distal femoral physis was sham operated to serve as a control. Dogs were radiographed weekly and euthanized from 2 days to 8 weeks following surgery. The rate of long bone growth decreased in all dogs, and the physis was closed at 6 to 8 weeks. Histologic studies on the distal femoral physes revealed that immediately after freezing, there was extensive hemorrhage in the epiphysis and metaphysis with disruption of the physis. Inflammation and death of the physeal cartilage followed. Blood vessels invaded the physis, and eventually bone was formed between the epiphysis and metaphysis, resulting in complete and premature physeal closure.

Original languageEnglish (US)
Pages (from-to)79-84
Number of pages6
JournalVeterinary Surgery
Volume15
Issue number1
DOIs
StatePublished - Jan 1986

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