Is the caudal auricular axial pattern flap robust? A multi-centre cohort study of 16 dogs and 12 cats (2005 to 2016).

OBJECTIVE: To determine the frequency and type of healing complications arising after the use of the caudal auricular axial pattern flap to close defects on the head in dogs and cats. MATERIAL AND METHODS: Multi-centre retrospective cohort study. Centres were recruited by the Association for Veterinary Soft Tissue Surgery Research Cooperative. Medical records of 11 centres were reviewed, and data from all dogs and cats treated with a caudal auricular axial pattern flap were retrieved. The following data were recorded: signalment, reason for reconstruction, flap dimensions, anatomic landmarks used, histological diagnosis, flap healing and whether revision surgery was required. RESULTS: Twenty-eight cases were included: 16 dogs and 12 cats. Flap length: width ratio was approximately 3:1 and flap length extended to the scapular spine in most cases. Optimal wound healing occurred in five of 16 (31%) dogs and six of 12 (50%) cats. Wound dehiscence without flap necrosis occurred in one of 16 (6%) dogs and one of 12 (8%) cats. Wound dehiscence with flap necrosis occurred in 10 of 16 (63%) dogs and five of 12 (42%) cats. Revision surgery was performed in eight of 16 (50%) dogs and three of 12 (25%) cats. CLINICAL SIGNIFICANCE: The caudal auricular axial pattern flap can provide full thickness skin coverage for large defects on the head in dogs and cats. Partial flap necrosis is a common complication, and revision surgery may be required in order to achieve final wound closure.

The efficacy of n-butyl-cyanoacrylate tissue adhesive for closure of canine laparoscopic ovariectomy port site incisions.

OBJECTIVES: To evaluate the efficacy of n-butyl-cyanoacrylate used to close port site skin incisions following canine laparoscopic ovariectomy and to assess owner attitudes to surgical adhesive. METHODS: The case records of dogs undergoing laparoscopic ovariectomy at a single centre during a 42-month period were examined. Dogs with incisions closed with n-butyl-cyanoacrylate were included. Cases with less than 8 weeks follow-up were excluded. Data relating to dehiscence, swelling, erythema, discharge or hypersensitivity postoperatively were recorded and reviewed. Postal questionnaires were sent to the dogs' owners. RESULTS: A total of 289 dogs satisfied inclusion criteria. No complications occurred in 602 of 695 (86 · 6%) incisions. Complications occurred in 93 of 695 (13 · 4%) incisions: 33 of 695 (4 · 7%) dehisced, 38 of 695 (5 · 5%) swelled postoperatively, 59 of 695 (8 · 5%) developed erythema and 29 of 695 (4 · 2%) developed a discharge. Complications were significantly more likely for a 10 mm incision than for a 5 mm incision (P < 0 · 001). There were no reported cases of hypersensitivity relating to the use of n-butyl-cyanoacrylate, nor any long-term adverse reactions. When owners scored incisions for scarring using a visual analogue scale (0: excellent, 10: poor) the mean and median scores were 0 · 7 and 0, respectively. CLINICAL SIGNIFICANCE: This study suggests that n-butyl-cyanoacrylate is an acceptable method for closing laparoscopic port sites in dogs.