Peer-reviewed veterinary case report
Changes in dog semitendinous muscle after perineal flap surgery
By Mortari, A C et al.·Published in Journal of veterinary medicine. A, Physiology, pathology, clinical medicine·2005·Department of Veterinary Surgery and Anesthesiology, Brazil·View original on PubMed →
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Original publication title: Electromyographical, ultrasonographical and morphological modifications in semitendinous muscle after transposition as ventral perineal muscle flap.
- Species:
- dog
Plain-English summary
A group of ten male crossbreed dogs, aged 3-4 years, underwent surgery where a muscle from their leg was moved to the perineal area for reconstruction. After the surgery, the dogs were monitored for changes in muscle function and structure over 90 days. While the dogs showed no noticeable changes in their walking or movement, tests revealed that the moved muscle could still contract, but it had shrunk in size. This suggests that while the surgery was successful in terms of function, the muscle did not maintain its original strength and size.
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Abstract
The aim of this study was to evaluate modifications occurring in semitendinous muscle after transposition as a ventral perineal muscle flap using electromyography, ultrasonography, and morphological studies. Ten male crossbreed dogs of 3-4 year old were used. The left semitendinous muscle was cut close to the popliteus lymph node, rotated and sutured at the perineal region. The contralateral muscle was considered as control. Motor nerve conduction studies of both sciatic-tibial nerves, and electromyographic and ultrasonographic examinations of both semitendinous muscles were performed before surgery and 15, 30, 60, and 90 days postoperatively. Semitendinous muscle samples were collected for morphological analysis 90 days after surgery. No alterations were observed in clinical gait examinations, or in goniometrical and electroneuromyographical studies in pelvic limbs after surgery. Electromyography demonstrated that the transposed muscle was able to contract, but atrophy was detected by ultrasonography and morphological analysis.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/16109104/