Comparison of standard perineal herniorrhaphy and transposition of the internal obturator muscle for perineal hernia repair in the dog

Abstract

Forty male dogs underwent 46 perineal herniorrhaphy procedures.In 22 dogs, herniorrhaphy was performed by standard perineal herniorrhaphy and in 18 dogs by internal obturator muscle transposition (six bilateral herniorrhaphies).Castration was performed in 13 (59%) dogs operated by standard perineal herniorrhaphy and in 14 (77%) dogs operated by transposition of the internal obturator muscle.Rectal disease was preoperatively observed in 22 (46%) cases.Recurrence was recorded in six (27%) dogs operated by standard perineal herniorrhaphy and in two (11%) dogs operated by internal obturator muscle transposition.Postoperative complications developed in 30 (65%) cases.The most common complications were wound complications (swelling, seroma, dehiscence and hematoma), lameness and tenesmus.Study results indicated the method of internal obturator muscle transposition to create a stronger perineal diaphragm with a lower incidence of recurrence compared to standard perineal herniorrhaphy.