Endoscopic surgery

Authors: G. J. MINSHALL, I. M. WRIGHT
Journal: Equine Veterinary Journal

Reasons for performing study: To describe the presentation, clinical, ultrasonographic and endoscopic features associated with a defect in the tarsal sheath wall, to define the cavity created and to describe a method of treatment.

Hypothesis: So called ‘false thoroughpins’ can be caused by defects in the tarsal sheath wall creating a one way valve effect, removal of which could be therapeutic.

Methods: Case records and diagnostic images of horses with synoviocoeles associated with the tarsal sheath were reviewed retrospectively and follow-up information obtained.

Authors: M. F. BARRETT, D. D. FRISBIE, C. W. McILWRAITH, N. M. WERPY
Journal: Equine Veterinary Journal

Reasons for performing study: While descriptions of the visible soft tissues of the femorotibial joints exist for both arthroscopy and ultrasonography, there are few examples in the literature that discuss in detail the combined findings of these modalities.

Objectives: To further elucidate the ultrasonographic and arthroscopic boundaries of the normal equine femorotibial joints and improve the understanding of the benefits and limitations of each individual modality.

Authors: Turlough P. Mc Nally MVB, Donnie E. Slone DVM, MS, Diplomate ACVS, Timothy M. Lynch DVM, Diplomate ACVS, Faith E. Hughes DVM, Diplomate ACVS
Journal: Veterinary Surgery

Objective
To validate the safety of a suprapatellar pouch (SPP), approach to the femoropatellar joint (FPJ), and describe use of a laparoscopic cannula to remove debris or loose bodies.
Study Design
Retrospective case series
Animals
Horses (n = 168) with osteochondritis dissecans (OCD) of the FPJ.
Methods

Authors: H. D. SPARKS, A. J. NIXON, K. J. BOENING, R. R. POOL
Journal: Equine Veterinary Journal

Reasons for performing study: To describe the clinical symptoms, treatment, and outcome of meniscal cysts in horses. These structures have not been previously described in the literature as a potential cause of lameness in the horse.

Hypothesis: Meniscal cysts are an uncommon condition of the femorotibial joint but can be a significant cause of lameness. Symptoms can be resolved by arthroscopic excision.

Authors: L. ARENSBURG, H. WILDERJANS, O. SIMON, J. DEWULF, B. BOUSSAUW
Journal: Equine Veterinary Journal

Reasons for performing study: Longitudinal tears (LTs) of the digital flexor tendons are an important cause of chronic tenosynovitis of the digital flexor tendon sheath (DFTS). The origin of those marginal tears is not yet fully understood. The long-term outcome after medical and surgical treatment is guarded.

Objectives: To determine the prevalence of LTs of the digital flexor tendons in a large population of horses undergoing diagnostic tenoscopy of the DFTS and to assess the outcome of surgical treatment and the factors influencing the outcome.

Authors: H. D. SPARKS, A. J. NIXON, L. A. FORTIER, H. O. MOHAMMED
Journal: Equine Veterinary Journal

Reasons for performing study: Long-term efficacy of arthroscopic cartilage reattachment for the treatment of osteochondritis dissecans (OCD) lesions in the equine femoropatellar joint is unknown.

Objective: To evaluate radiographic outcome and long-term performance of horses undergoing OCD reattachment.

Hypothesis: Separated OCD cartilage flaps may be reincorporated into the joint surface by reattachment rather than flap removal.

Authors: K. Ljungvall , B. Ronéus
Journal: Veterinary and Comparative Orthopaedics and Traumatology

Objectives: To describe the injuries in the middle carpal joint of trotting Standardbred racehorses in relation to future racing and to review the use of synovectomy in clinical cases. Methods: Review of medical records and racing statistics of clinical cases. Results: Sixty-six percent of horses undergoing arthroscopic surgery of the middle carpal joints returned to racing, but there were only weak associations between future racing success and findings at surgery.

Authors: Chad A. Marsh DVM, Jeffery P. Watkins DVM, MS, Diplomate ACVS, Robert K. Schneider DVM, MS, Diplomate ACVS
Journal: Veterinary Surgery

Objective: To describe partial removal of the intrathecal component of the deep digital flexor tendon (DDFT) in horses with chronic septic DDF tendonitis and tenosynovitis unresponsive to conventional therapy, and to report long-term outcome.

Study Design: Case series.

Animals: Horses (n=4).

Authors: Stavros Yiannikouris DVM, Robert K. Schneider DVM, MS, Diplomate ACVS, Sarah N. Sampson DVM, PhD, Diplomate ACVS, Greg Roberts DVM, Diplomate ACVR
Journal: Veterinary Surgery

Objective: To report outcome after desmotomy of the accessory ligament of the deep digital flexor tendon (ALDDFT) in adult horses (≥2 years) for treatment of desmitis of the ALDDFT or flexural deformity of the distal interphalangeal joint (FDDIJ).

Study Design: Case series.

Animals: Horses with desmitis of the ALDDFT (n=9) and FDDIJ (n=15).

Methods: Records (April 1996–July 2008) of 24 adult horses (mean age, 6.7 years) that had ALDDFT desmotomy were reviewed. Follow-up data was obtained 12–120 months after desmotomy.

Authors: Fred J. Caldwell MS, DVM, Diplomate ACVS, R. Wayne Waguespack MS, DVM, Diplomate ACVS
Journal: Veterinary Surgery

Objective: To develop a tenoscopic approach for desmotomy of the accessory ligament of the deep digital flexor tendon (AL-DDFT) in horses.

Study Design: Experimental.

Animals: Cadaveric forelimbs (n=10) and 4 forelimbs from 2 horses anesthetized for terminal teaching procedures, and 12 forelimbs of 6 experimental horses.