Experimental Study of Avascular Necrosis of the Femoral Head in the Puppy.
10.4055/jkoa.2003.38.5.447
- Author:
Sung Man ROWE
1
;
Eun Sun MOON
;
Sung Taek JUNG
;
Jong Wook KIM
;
Jong Seok KIM
;
Myung Sun KIM
Author Information
1. Department of Orthopaedic Surgery, Chonnam National University Hospital, Gwangju, Korea. smrowe@chonnam.ac.k
- Publication Type:Original Article
- Keywords:
Femoral head;
Vascular infarct;
Puppy;
Legg-Calve-Perthes' disease (LCPD)
- MeSH:
Epiphyses;
Femur;
Head*;
Hip Joint;
Humans;
Necrosis*
- From:The Journal of the Korean Orthopaedic Association
2003;38(5):447-453
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: To observe the morphological changes of the femoral head following vascular infarct produced by surgical devascularization of the capital femoral epiphysis in a mongrel puppy model. MATERIALS AND METHODS: Forty-six mongrel, weaned puppies, 7 to 9 weeks old, and between 1.5 to 2.5 kg in weight, were experimentedupon. They were divided into three groups: 12 underwent only simple capsular incision (Group A), 18 underwent ligamentum teres disruptionwith temporary subluxation of the hip joint (Group B), and 16 underwent both ligamentum teres and posterior retinacular arterydisruption (Group C). Three to five puppies in each experimental group were periodically sacrificed at 2 weeks and at 1, 2, 5 months, postoperatively. Both femurs, extracted from the sacrificed puppies, were studied by eye, radiographically and histologically. RESULTS: Puppies from the single (Group B) and double devascularization groups (Group C) showed definite findings of vascular infarct macroscopically, radiologically, and histologically. These findings were more frequent and severe in the group with the double infarct thanthe single infarct. CONCLUSION: Morphological changes similar to those seen in human Legg-Calve-Perthes' disease (LCPD) were observed in puppy specimens. This puppy model of LCPD may be useful for experimental studies.
