Crimped monofilament nylon leader for median sternotomy closure in 10 dogs

Abstract

Objective: To describe and report the outcomes after closure of median sternotomies with crimped monofilament nylon leader (MNL) in dogs. Study design: Retrospective observational study. Animals: Dogs (n = 10) that underwent intrathoracic surgery through a median sternotomy approach. Methods: The median sternotomy was closed in a peristernal figure eight pattern with crimped MNL. Medical records were reviewed for clinical and histopathological findings and complications. Owners or veterinarians were contacted to collect long-term follow-up information. Results: The technique was simple, with no intraoperative complications. Postoperative infection was documented in one dog, requiring removal of a single MNL and associated crimp clamp. Delayed healing of the surgical incision in one dog was managed conservatively. No other complications were documented throughout long-term follow-up at a median of 488 days (range, 199-608). Conclusion: Median sternotomies were successfully closed with crimped MNL and were associated with a low complication rate. Clinical significance: Crimped MNL represents an alternative method to close median sternotomies in dogs.

Comparison of median sternotomy closure‐related complication rates using orthopedic wire or suture in dogs: A multi‐institutional observational treatment effect analysis

“…15 The same has been shown with the use of crimped nylon leader (40 or 80 lb) in dogs varying 12-38 kg. 14 The estimated risk of developing a closure-related complication, while taking into account other known or potential risk factors, such as dog weight, was equivalent between groups in our study. It therefore supports the conclusion that closure of MS with suture and wire are both suitable options in dogs including those of large (≥20 kg) size.…”

“…A previously performed biomechanical study has shown that suture (four metric polydioxanone) could provide as effective closure of the sternum as orthopedic wire (12 gauge) in 12 greyhounds 15 . The same has been shown with the use of crimped nylon leader (40 or 80 lb) in dogs varying 12–38 kg 14 . The estimated risk of developing a closure‐related complication, while taking into account other known or potential risk factors, such as dog weight, was equivalent between groups in our study.…”

“…Median sternotomy closure with suture has also been reported to be quicker than wire closure 4 . Another suitable closure method for sternotomy in dogs is crimped monofilament 14 . Stainless‐steel wire has been suggested to be superior, 4 or similar to suture in generating stability of the sternum 15 even though it remains to be confirmed whether sternal stability is the only factor contributing to surgical site morbidity following MS.…”