Ruminant

Authors: Andrew J. Niehaus, DVM, MS; David E. Anderson, DVM, MS; Valerie F. Samii, DVM, MS; Steven E. Weisbrode, VMD, MS; Jed K. Johnson, BS; Mike S. Noon, BS; David L. Tomasko, PhD; John J. Lannutti, PhD
Journal: American Journal of Veterinary Research

Objective—To determine elution characteristics of bone morphogenetic protein (BMP)-2 from a polycaprolactone coating applied to orthopedic implants and determine effects of this coating on osseointegration.

Animals—6 sheep.

Category: Research - Ruminant
Authors: P. Meynaud-Collard , E. Asimus, D. Mathon, R. Darmana, P. Frayssinet, J.-Ph. Cahuzac, A. Autefage
Journal: Veterinary and Comparative Orthopaedics and Traumatology

Introduction: Angular deformity in the growing skeleton of animals, especially in the radius and ulna, is occasionally seen in clinical practice. The mechanism of spontaneous correction of these angular deformities however remains to be elucidated. The purpose of our experiment was to explore the ability of a growth plate to correct an induced valgus deformity, and to study the mechanism of correction. Methods: Before beginning the study, valgus deformity of the distal radius had been induced in lambs by the application of a device that causes asymmetrical compression of the growth plate.

Authors: Jeffrey A. Seaman, DVM; G. Elizabeth Pluhar, DVM, PhD; Nathan D. Rose, DVM; Jeff I. Weinstein, DVM; Hongfei Guo, PhD; Kari L. Anderson, DVM
Journal: American Journal of Veterinary Research

Objective—To evaluate scintigraphy, radiography, and histomorphometric analysis for assessing incorporation of intercalary bone grafts and to compare incorporation of cortical autografts and allografts by the recipient.

Animals—12 skeletally mature sheep.

Category: Research - Ruminant
Authors: T. J. Smith, N. M. Girard, J. O'Riordan, N. Fitzpatrick
Journal: Veterinary and Comparative Orthopaedics and Traumatology

In this report, a case of cranial cruciate ligament (CrCL) rupture treated by tibial plateau levelling osteotomy (TPLO), in a 36-month-old male breeding alpaca, is described. The alpaca was presented with the complaint of acute onset of right pelvic limb lameness. The findings of our clinical and radiographic examinations were consistent with CrCL insufficiency of the right stifle joint. The right tibial plateau angle measured prior to surgery was 19°. A TPLO was performed and this eliminated cranial tibial thrust.

Authors: ANDREW J. LEWIS, DVM , GARY A. SOD, DVM, PhD , MARJORIE S. GILL, DVM, MS, Diplomate ABVP , and COLIN F. MITCHELL, BVM&S, MS, Diplomate ACVS
Journal: Veterinary Surgery

Objectives—To report a technique for arthrodesis of the distal interphalangeal joint (DIPJ) with two 6.5 mm Acutrak Plus (AP) compression screws from a solar approach and outcome in 7 cattle.

Study Design—Case series.

Animals—Cattle (n=7) with DIPJ arthritis.

Authors: KYLA F. ORTVED, DVM; URSULA KROTSCHECK, DVM, Diplomate ACVS;SAMANTHA A. COLLINS, Bsc;JEREMY J. RAWLINSON, PhD; JONATHAN DYCE, VetMB, DSAO, Diplomate ACVS
Journal: Veterinary Surgery

Objective—To report management of a chronic slipped capital femoral epiphysis (SCFE) in an alpaca using cementless total hip replacement (THR).

Study Design—Case report.

Animal—An 18-month-old, 47 kg alpaca male.

Methods—Cementless THR was performed in an alpaca with a chronic, right SCFE, and secondary osteoarthritis. Force plate gait analysis was performed before and 8 weeks after surgery. Outcome was determined through clinical evaluation, radiography, and force plate gait analysis.

Authors: K. Hette, S. C. Rahal, R. S. Volpi, O. C. M. Pereira Júnior, M. J. Mamprim, V. Colombi da Silva
Journal: Veterinary and Comparative Orthopaedics and Traumatology

The aim of this study was to establish normal reference values of anatomic and mechanical joint angles of the tibia in sheep at different age groups. Eighteen clinically healthy Santa Ines sheep were used. The animals were divided into three equal groups according to age: Group I – from six- to eight-months-old, Group II – 2-years-old, Group III – from three- to five-years-old.

Category: Imaging - Ruminant
Authors: Alexandra J. Burton, BVSc; Daryl V. Nydam, DVM, PhD; Theresa L. Ollivett, DVM; Thomas J. Divers, DVM, DACVIM
Journal: Journal of the American Veterinary Medical Association

Objective—To evaluate clinical variables assessed during the first 24 hours of hospitalization as prognostic indicators for nonambulatory cattle treated by use of a flotation tank.

Design—Retrospective case series.

Animals—51 nonambulatory cattle that underwent flotation treatment.

Category: Miscellaneous - Ruminant
Authors: STEPHANIE M. FURMAN, DVM, LISA A. FORTIER, DVM, PhD, Diplomate ACVS , LAUREN V. SCHNABEL, DVM, and URSULA KROTSCHECK, DVM, Diplomate ACVS
Journal: Veterinary Surgery

Objective—To report surgical treatment of traumatic lateral patellar luxation using trochlear block recession in an alpaca.

Study Design—Clinical case report.

Animals—Five-year-old female alpaca.

Methods—Grade IV/IV lateral, left patella luxation and mild femoropatellar joint effusion was identified by palpation and visual assessment, and confirmed by ultrasonography and radiographs. Trochlear block recession combined with lateral retinacular release and medial imbrication to restore patella function.

Authors: A. J. Channon, BSc, A. M. Walker, BSc, T. Pfau, MEng, PhD, I. M. Sheldon, BVSc, PhD, MRCVS and A. M. Wilson, BSc, BVMS, PhD, MRCVS
Journal: Veterinary Record

The gait scoring system developed by Manson and Leaver was used by five experienced observers to assess the gait of 83 milking Holstein-Friesian cows in a live recording session, and video recordings were made. The agreement between the scores of the observers at the live session, and between each observer's scores at the live session and a video session, were compared at three levels of stringency. The scores of the observers were highly variable at all but the least stringent threshold - whether a cow had a score of less than 3 or 3 or more, that is, whether it was not lame or lame.

Category: Ruminant