Ruminant

Authors: M. Raghunath, N. Singh, T. Singh, A. Gopinathan, J. Mohindroo, K. Atri
Journal: Veterinary and Comparative Orthopaedics and Traumatology

A two-and-half-year-old cow was presented with a defect nonunion of the right metatarsal III/IV bone following a severely comminuted open fracture two months previously. The animal underwent open fixation using a 4.5 mm, broad, 10-hole, dynamic compression plate and autogenous cancellous bone graft collected from the contralateral iliac shaft. The animal started partial weight bearing after the third postoperative day and resumed complete weight bearing after the 10th day. Fracture healing was complete and the implants were removed after the 120th postoperative day.

Authors: Andrew J. Niehaus, DVM; David E. Anderson, DVM, MS; Jed K. Johnson, BS; John J. Lannutti, PhD
Journal: American Journal of Veterinary Research

Objective—To compare the mechanical characteristics of polymerized caprolactam and monofilament nylon loops with those of the cranial cruciate ligament (CCL) in cattle.

Sample—6 femorotibial joints harvested from 3 cows and suture constructs made from No. 8 polymerized caprolactam, 80-lb test monofilament nylon fishing line, and 450-lb test monofilament nylon fishing line.

Category: Miscellaneous - Ruminant
Authors: Stefano Brianza, Susan Vogel, Stephan Rothstock, Andrè Desrochers and Ludovic Boure
Journal: Veterinary Surgery

Objective
To compare the torsional strength of calf metatarsal bones with defects produced by removal of 2 different implants.

Study Design
In vitro mechanical comparison of paired bones with bicortical defects resulting from the implantation of 2 different external fixation systems: the transfixation pin (TP) and the pin sleeve system (PS).

Sample Population
Neonatal calf metatarsal bones (n = 6 pairs).

Methods

Authors: Stefano Brianza, Susan Vogel, Stephan Rothstock, Martin Thalhauser, Andrè Desrochers and Ludovic Boure
Journal: Veterinary Surgery

Objective:
To compare proximal fragment displacement and the peri-implant strain using a pin-sleeve cast (PSC) system and a transfixation pin cast (TPC) system on a cadaveric calf metacarpal bone fracture model.

Study Design
Experimental.

Sample Population
Cadaveric calf metacarpal bones (n = 6 pairs).

Methods

Authors: Stacy A. Semevolos, Shannon K. Reed, Loren G. Schultz
Journal: American Journal of Veterinary Research

Objective—To characterize serum trace mineral, sex steroid hormone, and vitamin D concentrations and identify factors associated with metacarpophalangeal and metatarsophalangeal hyperextension in llamas and alpacas.

Samples—Serum samples from 79 llamas and 15 alpacas and owner survey data for 573 llamas and 399 alpacas.

Category: Miscellaneous - Ruminant
Authors: C. Yardimci, A. Ozak, O. Nisbet
Journal: Veterinary and Comparative Orthopaedics and Traumatology

Objective: To present a novel technique for the treatment of severe congenital flexural forelimb deformities in calves. Methods: Thirteen calves of different breeds and sex with severe congenital flexural forelimb deformities were enrolled in the study. A semicircular external skeletal fixation system composed of 6-hole, 45° carbon-fiber arches, 6 mm threaded rods, half-pin fixation bolts, 6 mm hexagonal nuts, and negative profile end-threaded half-pins were used for pancarpal arthrodesis.

Authors: Luciano B. Rodrigues, Estevam B. Las Casas, Daniel S. Lopes, João Folgado, Paulo R. Fernandes, Eduardo A. C. B. Pires, Geraldo Eleno S. Alves and Rafael R. Faleiros
Journal: Veterinary Surgery

Objective

To verify if the finite element method can correctly estimate the performance of polyacetal and polyamide 6 intramedullary nails in stabilizing a femoral fracture in calves and to estimate the performance of a polypropylene nail in same conditions.

Study Design

Computational and experimental study.

Sample Population

Finite element models (FEMs).

Methods

Authors: F. Rüegsegger, F. Steffen, K. A. Nuss
Journal: Veterinary Record

Partial brachial plexus paresis was diagnosed in three calves with unilateral functional lameness in a forelimb based on clinical and neurologic examinations. Clinical signs of radial nerve paresis were the main presenting problems. Electromyography was used to identify the affected nerves with the calves under general anaesthesia. Abnormal spontaneous activity of denervated muscles showed that the radial, musculocutaneous, median and ulnar nerves were compromised. The calves were treated medically, using splint bandages, and with physiotherapy.

Category: Miscellaneous - Ruminant
Authors: Martin Blaser, Alberto Bertagnoli, Marta Räber, Karl Nuss, Mehdi Rasekh, Adrian Steiner
Journal: Veterinary Journal

The objective of the present study was to describe the arthroscopic anatomy of the bovine fetlock joint using one palmar/plantar and three dorsal joint approaches. A comparative anatomic, ultrasonographic and arthroscopic study using 20 cadaveric feet from 13 non-lame adult dairy cows was performed.

Authors: J.E. Stokes, K.A. Leach, D.C.J. Main, H.R. Whay
Journal: Veterinary Journal

Previous research has suggested that temperature at the coronary band increases in the presence of claw horn lesions in dairy cattle. However the reliability of using infrared thermography (IRT) as a method of distinguishing between lesions has not been investigated. The objective of this study was to examine the potential of IRT as a non-invasive tool for rapidly screening for the presence of digital dermatitis (DD). Eighty-two cows which either had no skin lesions on the hind feet (controls, n = 41 feet) or a DD lesion on one or both feet were selected during milking.

Category: Ruminant