SAEVA Proceedings 2016 | Page 105

  OUTCOME FOLLOWING SURGICAL TREATMENT OF PRIMARY PALMAR/PLANTAR ANNULAR LIGAMENT DESMOPATHY: A RETROSPECTIVE STUDY OF TWENTY-EIGHT CASES G.M Nieuwenhuis, H. O’Neil, B.J O’Meara, F.M James, B. Bladon Donnington Grove Veterinary Surgery, Newbury, UK RESEARCH ABSTRACT Reasons for performing study: There is little available literature regarding the outcome of endoscopically-guided desmotomy of the palmar/plantar annular ligament (PAL) where PAL injury was the only diagnosis. Objectives: To report the return to previous level of exercise in horses treated with endoscopically-guided PAL resection in which PAL injury was considered to be the primary condition. Study Design: Retrospective case series. Methods: Medical records of surgical cases at Donnington Grove Veterinary Surgery between 2005 and 2013 were reviewed. The inclusion criteria were cases that had undergone surgical transection of the palmar/plantar annular ligament under general anaesthesia and endoscopic guidance using a no. 12 scalpel blade, or electrocautery, where annular ligament injury was the only significant finding at surgery. Follow-up information was obtained by telephone questionnaire. Results: Twenty-eight horses were included in the study. Twenty-five horses were noted to have restriction to passage of the arthroscope within the DFTS at the time of surgery. Following the initial 3 month post-operative rest period 27 horses were sound. Three horses did not return to their previous level of activity due to unrelated lameness issues and 3 returned to a lower level of competition due to owner preference. Of the remaining 22 horses, 20 returned to their previous level of athletic performance. Two horses had recurrent or persistent lameness associated with the residual PAL desmopathy. Conclusions: In this case series surgical treatment of primary PAL injury carries a good prognosis (90% (censored) - return to previous level of exercise) in contrast to a previously reported study (<50% of horses were able to return to athletic function) (Owens et al 2008)[1]. References: 1.OWEN, K. R (2008), Retrospective study of palmar/plantar annular ligament injury in 71 horses: 2001–study EVJ, 40: 237–244. doi: 10.2746/042516408X271217     15-­‐18  February  2016      East  London  Convention  Centre,  East  London,  South  Africa     104