Publications by authors named "Henry W Jann"

Objective: To assess the effects of a crosslinked, modified hyaluronic acid (xCMHA-S) gel on equine tendon healing using an in vivo surgical model.

Study Design: In vivo experimental study.

Animals: Adult horses (n = 5).

View Article and Find Full Text PDF

A 2-year-old alpaca was presented for acute onset right forelimb lameness. Clinical findings included bilateral carpal valgus (more severe in the affected forelimb) and medial instability of the right radio-carpal joint. Surgical treatment consisted of radio-carpal joint arthrodesis, which is presented as a therapeutic option for severe carpal instability secondary to injury to the supporting ligamentous structures of the carpus.

View Article and Find Full Text PDF

Radiographic diagnosis of equine bone disease using digital radiography is prevalent in veterinary practice. However, the diagnostic quality of digital vs. conventional radiography has not been compared systematically.

View Article and Find Full Text PDF

A 2-day-old Thoroughbred intact female was presented for a large subcutaneous swelling in the right inguinal region. Surgical repair was performed using a double layer polypropylene mesh. To the authors' knowledge, there have been no previous reports of surgical repair of congenital body wall hernias with polypropylene mesh in foals.

View Article and Find Full Text PDF

Case Description: A 10-year-old Longhorn cow pregnant with a valuable fetus was evaluated because of progressive inspiratory dyspnea of 6 weeks' duration.

Clinical Findings: Physical examination findings were consistent with upper respiratory tract obstruction. A large pedunculated soft tissue mass was evident in the mid-dorsal aspect of the pharynx during palpation and endoscopic examination.

View Article and Find Full Text PDF

Case Description: A 7-year-old sexually intact male Thoroughbred racehorse was evaluated because of exercise intolerance, respiratory tract noise, and coughing when eating.

Clinical Findings: A persistent dorsal displacement of the soft palate was identified during endoscopic examination of the upper portions of the respiratory tract. Radiography of the pharyngeal and laryngeal regions revealed a hypoplastic epiglottis that was ventral to, and not in contact with, the soft palate.

View Article and Find Full Text PDF

Objective: To assess gait abnormalities associated with selective anesthesia of the suprascapular nerve (SSN) achieved by use of perineural catheterization and thereby determine the function of that nerve as it relates to gait in horses.

Animals: 3 adult horses with no preexisting clinically apparent lameness at a walk.

Procedure: Each horse was anesthetized; the right SSN was exposed surgically for placement of a perineural catheter to permit delivery of 1 mL of 2% mepivacaine hydrochloride.

View Article and Find Full Text PDF

Objective: To quantitatively compare 3 commonly used treatments for navicular syndrome (NS) in horses: heel-elevation shoeing alone, heel-elevation shoeing and phenylbutazone administration, heel-elevation shoeing and injection of the distal interphalangeal joint (DIPJ) with triamcinolone acetonide (TA), and all 3 treatments in combination.

Animals: 12 horses with NS.

Procedure: A force plate was used to measure baseline peak vertical ground reaction force (PVGRF) of the forelimbs.

View Article and Find Full Text PDF

Objective: To compare effects of the locking-loop suture pattern (LLP) and 3-loop pulley (3LP) suture pattern for tenorrhaphy on the intrinsic vasculature of the superficial digital flexor tendon (SDFT) of horses in vitro after surgery.

Sample Population: 16 forelimbs obtained from 8 mature horses.

Procedure: Tenotomy and subsequent tenorrhaphy was performed in anesthetized horses.

View Article and Find Full Text PDF

Objective: To compare the healing and mechanical strength of a multiple split autologous tendon graft (MG) to a whole autologous tendon graft (WG) in the deep digital flexor tendon of ponies.

Study Design: In vitro evaluation of two different tendon-grafting techniques.

Animals Or Sample Population: Six ponies of mixed gender and age.

View Article and Find Full Text PDF