Internal obturator muscle transposition for treatment of perineal hernia in dogs: 34 cases (1998–2012)

Magen Shaughnessy Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO 80523.

Search for other papers by Magen Shaughnessy in
Current site
Google Scholar
PubMed
Close
 DVM
and
Eric Monnet Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO 80523.

Search for other papers by Eric Monnet in
Current site
Google Scholar
PubMed
Close
 DVM, PhD

Click on author name to view affiliation information

Abstract

Objective—To evaluate the outcome of dogs with perineal hernia treated with transposition of the internal obturator muscle.

Design—Retrospective case series.

Animals—34 dogs.

Procedures—Medical records of dogs with perineal hernia surgically treated from 1998 to 2012 were reviewed. Diagnostic methods and surgical techniques were recorded. Dogs were assigned preoperative and postoperative clinical sign scores. Complication and recurrence rates were evaluated over time. Risk factors were determined.

Results—Median follow-up time was 345 days (range, 22 to 1,423 days). Complications were observed in 10 dogs. Tenesmus (n = 9), dyschezia (7), fecal impaction (3), stranguria (4), hematochezia (2), urinary incontinence (2), diarrhea (1), urinary tract infection (1), and megacolon (1) occurred following surgery. Bladder retroflexion at the time of initial evaluation or surgery was not a risk factor for complication (hazard ratio, 1.72). One year after surgery, 51.2% dogs were free of complications. Three dogs developed a perineal hernia on the contralateral side between 35 and 95 days after surgery. The 1-year recurrence rate was 27.4%. Median time for recurrence was 28 days after surgery (range, 2 to 364 days). Postoperative tenesmus was a risk factor for the development of recurrence (hazard ratio, 2.29).

Conclusions and Clinical Relevance—Internal obturator muscle transposition was used for primary repair of perineal hernia in dogs. Recurrence was recorded as long as 1 year after surgery. Tenesmus was a risk factor for the development of recurrence after treatment of perineal hernia with internal obturator muscle transposition.

Abstract

Objective—To evaluate the outcome of dogs with perineal hernia treated with transposition of the internal obturator muscle.

Design—Retrospective case series.

Animals—34 dogs.

Procedures—Medical records of dogs with perineal hernia surgically treated from 1998 to 2012 were reviewed. Diagnostic methods and surgical techniques were recorded. Dogs were assigned preoperative and postoperative clinical sign scores. Complication and recurrence rates were evaluated over time. Risk factors were determined.

Results—Median follow-up time was 345 days (range, 22 to 1,423 days). Complications were observed in 10 dogs. Tenesmus (n = 9), dyschezia (7), fecal impaction (3), stranguria (4), hematochezia (2), urinary incontinence (2), diarrhea (1), urinary tract infection (1), and megacolon (1) occurred following surgery. Bladder retroflexion at the time of initial evaluation or surgery was not a risk factor for complication (hazard ratio, 1.72). One year after surgery, 51.2% dogs were free of complications. Three dogs developed a perineal hernia on the contralateral side between 35 and 95 days after surgery. The 1-year recurrence rate was 27.4%. Median time for recurrence was 28 days after surgery (range, 2 to 364 days). Postoperative tenesmus was a risk factor for the development of recurrence (hazard ratio, 2.29).

Conclusions and Clinical Relevance—Internal obturator muscle transposition was used for primary repair of perineal hernia in dogs. Recurrence was recorded as long as 1 year after surgery. Tenesmus was a risk factor for the development of recurrence after treatment of perineal hernia with internal obturator muscle transposition.

All Time Past Year Past 30 Days
Abstract Views 584 0 0
Full Text Views 1665 1251 316
PDF Downloads 1166 691 66
Advertisement