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Case Report

Ischiocavernosus Muscle Release for Urethral Obstruction Treatment after Pelvic Symphyseal Distraction Osteotomy in a Cat with Pelvic Stenosis

College of Veterinary Medicine, Chungnam National University, Daejeon 34134, Korea
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Author to whom correspondence should be addressed.
Academic Editors: Filippo Maria Martini, Michele d’Amato and Chadi Eid
Vet. Sci. 2021, 8(10), 225; https://doi.org/10.3390/vetsci8100225
Received: 23 August 2021 / Revised: 5 October 2021 / Accepted: 9 October 2021 / Published: 12 October 2021
(This article belongs to the Special Issue Advances in Orthopaedic and Traumatology in Dog and Cat)
Symphyseal distraction osteotomy (SDO) with a polymethyl methacrylate (PMMA) spacer is an effective surgical treatment for cats with pelvic stenosis. This study reports the successful treatment of urethral obstruction due to ischiocavernosus muscle (IM) tension after SDO with a PMMA spacer. A 2-year-old castrated male Korean domestic shorthair feline had megacolon and pelvic canal stenosis. The ratio of the maximal diameter of the colon to the L5 length and the pelvic canal diameter ratio were 1.6 and 0.45, respectively. Pelvic SDO was performed with a PMMA spacer, leading to pelvic canal enlargement (pelvic canal diameter ratio: 0.73). Two days after surgery, dysuria was identified immediately after removing the preoperatively placed urinary catheter. Complete blood counts and serum biochemical profiles were within the reference intervals, and a positive contrast retrograde urethrogram confirmed urethral obstruction at the level of the membranous–pelvic urethra region. Increased tension of the IM leading to a narrowed urethra was suspected as the cause of urethral obstruction. After IM release at the level of origin on the ischium, the patient had an uneventful recovery with spontaneous urination. Muscle release resulted in excellent functional restoration, with no intraoperative or postoperative complications reported during the 12-month long-term follow-up. Therefore, SDO with IM release could be a feasible therapeutic option for severe pelvic stenosis without complications, such as urethral obstruction, in cats. View Full-Text
Keywords: cat; pelvic stenosis; urethral obstruction; symphyseal distraction osteotomy cat; pelvic stenosis; urethral obstruction; symphyseal distraction osteotomy
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MDPI and ACS Style

Roh, Y.-H.; Kim, J.-N.; Byun, P.-M.; Kim, D.-H.; Jeong, S.-M.; Lee, H.-B. Ischiocavernosus Muscle Release for Urethral Obstruction Treatment after Pelvic Symphyseal Distraction Osteotomy in a Cat with Pelvic Stenosis. Vet. Sci. 2021, 8, 225. https://doi.org/10.3390/vetsci8100225

AMA Style

Roh Y-H, Kim J-N, Byun P-M, Kim D-H, Jeong S-M, Lee H-B. Ischiocavernosus Muscle Release for Urethral Obstruction Treatment after Pelvic Symphyseal Distraction Osteotomy in a Cat with Pelvic Stenosis. Veterinary Sciences. 2021; 8(10):225. https://doi.org/10.3390/vetsci8100225

Chicago/Turabian Style

Roh, Yoon-Ho, Jeong-Nam Kim, Pill-Moo Byun, Dae-Hyun Kim, Seong-Mok Jeong, and Hae-Beom Lee. 2021. "Ischiocavernosus Muscle Release for Urethral Obstruction Treatment after Pelvic Symphyseal Distraction Osteotomy in a Cat with Pelvic Stenosis" Veterinary Sciences 8, no. 10: 225. https://doi.org/10.3390/vetsci8100225

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