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  • Author or Editor: Sandra Zetterström x
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OBJECTIVE To evaluate clinical and tenoscopic findings in a large group of horses undergoing surgery of the carpal flexor sheath (CFS) and determine whether any of the presurgical clinical signs were associated with tenoscopic findings.

ANIMALS 242 horses that had undergone diagnostic and therapeutic tenoscopy of the CFS because of aseptic tenosynovitis.

PROCEDURES Medical and tenoscopic video records (when available) of 242 horses undergoing tenoscopy of the CFS at a single equine clinic between January 2005 and June 2014 were reviewed. Tenoscopic findings were categorized as present or absent, and tears in the deep digital flexor tendon (DDFT) were subjectively graded according to severity. Logistic regression analysis was used to examine whether presurgical clinical findings were associated with intraoperative tenoscopic findings.

RESULTS 242 horses (411 limbs) were evaluated by use of tenoscopy. An exostosis was detected in 228 horses (379 limbs) and was often multipartite. Most exostoses were found medial to, or within, the sagittal plane at the caudal margin of the scar on the distal physis of the radius. Effusion in the CFS was associated with tears in the DDFT. Other presurgical clinical findings were not predictive of intrathecal findings.

CONCLUSIONS AND CLINICAL RELEVANCE Synovial effusion was predictive of DDFT lesions within the CFS but was not predictive of the severity of lesions. Further studies will be necessary to determine whether any tenoscopic findings are associated with reduced athletic performance and to assess the effect of surgical intervention in affected horses.

Full access
in American Journal of Veterinary Research

A 17-year-old 513-kg (1,129-lb) gray Holsteiner gelding was presented for evaluation of lethargy of indeterminate duration. On examination, the horse was markedly lethargic with dull attitude and exercise intolerance when walking. It was thin (body condition score, 3/9). Mucous membranes were pink and moist with a capillary refill time < 2 seconds. Heart rate was 28 beats/min, respiratory rate was 20 breaths/min, and rectal temperature was 37.6°C (99.8°F). Cardiac auscultation revealed a grade 3/6 left-sided, apical, systolic murmur as well as an irregularly irregular arrhythmia. Frequent pauses with presumptive S4 heart sounds were auscultated. Gastrointestinal sounds and digital pulses were

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in Journal of the American Veterinary Medical Association


OBJECTIVE To determine factors affecting race speed in Swedish Standardbred horses undergoing surgery of the carpal flexor sheath (CFS), to investigate whether preoperative racing speed was associated with specific intraoperative findings and whether horses returned to racing, and to compare the performance of horses undergoing surgery of the CFS with that of age- and sex-matched control horses.

ANIMALS 149 Swedish Standardbred trotters undergoing surgery of the CFS and 274 age- and sex-matched control horses.

PROCEDURES Medical records of CFS horses were examined. Racing data for CFS and control horses were retrieved from official online records. Generalizing estimating equations were used to examine overall and presurgery racing speeds and the association of preoperative clinical and intraoperative findings with preoperative and postoperative speeds. Multivariable regression analysis was used to examine career earnings and number of career races. Kaplan-Meier survival analysis was used to compare career longevity between CFS and control horses.

RESULTS CFS horses were significantly faster than control horses. The CFS horses that raced before surgery were slower as they approached the surgery date, but race speed increased after surgery. There were 124 of 137 (90.5%) CFS horses that raced after surgery. No intrathecal pathological findings were significantly associated with preoperative racing speed. Career longevity did not differ between CFS and control horses.

CONCLUSIONS AND CLINICAL RELEVANCE Horses undergoing surgery of the CFS had a good prognosis to return to racing after surgery. Racing careers of horses undergoing surgery of the CFS were not significantly different from racing careers of control horses.

Full access
in American Journal of Veterinary Research