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DOI: 10.1055/s-0045-1810301
Findings in Horses Undergoing Repeat Tenoscopy for Treatment of Nonseptic Tenosynovitis of the Digital Flexor Tendon Sheath: 20 Cases
Introduction: Pathology within the digital flexor tendon sheath (DFTS) is commonly diagnosed. The outcomes following surgical treatment vary depending on the diagnosis. In horses that remain lame repeat tenoscopy may be indicated. The objectives of this study were to determine the indications for and timing of repeat tenoscopy and report intraoperative tenoscopic findings and outcomes.
Materials and Methods: Horses undergoing repeat tenoscopy between January 2019 and October 2024 by one of the authors were included. Initial and repeat surgical findings and outcomes were recorded.
Results: Nineteen horses underwent repeat tenoscopy with a single horse having three procedures giving 20 repeat tenoscopic cases (procedures). Cases with an initial diagnosis of DDFT injury most commonly underwent repeat tenoscopy (12/20). Forty per cent (8/20) of cases were considered to have iatrogenic damage from the initial surgery. Adhesions were present in 50% (10/20). PAL desmotomy was performed in 40% (8/20) of cases at repeat tenoscopy and had been performed at the initial surgery in 25% (7/20). At the time of follow-up five horses were convalescing. Follow-up was not available in two horses. Of the remaining horses, seven (58%, 7/12) are sound and in full work, and five (42%, 5/12) have retired due to ongoing lameness. In one horse this lameness was localized to the foot.
Discussion/Conclusion: Repeat tenoscopy should be considered in horses with recurrent or persistent lameness as new or additional pathology was commonly identified. Horses initially treated for intra-thecal DDFT injuries were over-represented. The large number of horses with iatrogenic damage is concerning.
Acknowledgment
None.
Publication History
Article published online:
15 July 2025
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