Deformity

Authors: Sereda CW, Lewis DD, Radasch RM, Bruce CW, Kirkby KA.
Journal: Can Vet J

The radiographic and clinical results from 17 dogs (18 limbs) in which hybrid linear-circular external fixators (HLCEF) were used for the correction of antebrachial growth deformities (AGD) are described, retrospectively. Wedge ostectomy and the application of a type IA or IB HLCEF were performed in all cases. Pre- and postoperative AGD measurements, complications, time to staged destabilization and/or fixator removal, cosmesis, and limb function were evaluated. Complications included wire and/or pin tract inflammation (11 limbs) and radial fracture (2 limbs).

Authors: von Pfeil D, Decamp C, Diegel K, Gholve P, Probst C, Dejardin L.
Journal: VCOT

Osgood-Schlatter disease (OSD) is a condition affecting human adolescents in which there is partial separation of bone fragments from the tibial tuberosity at the site of insertion of the patellar ligament to the tibial tuberosity. Tensile trauma seems to be the most likely aetiology. Clinical signs in people consist of swelling and pain at the proximal part of the tibial tuberosity and around the distal end of patellar ligament. Radiographs frequently show small ossicles at the patellar ligament insertion. Conservative treatment is usually curative.

Authors: MASSIMO PETAZZONI, DVM 1,2 , ALESSANDRO PIRAS, DVM, ISVS, MRCVS 1,2 , GAYLE H. JAEGER, DVM, MSpVM, Diplomate ACVS 1,2 , and CLAUDIO MARIONI, DVM 1,2
Journal: Vet Surg

Objective—To report unilateral correction and initial stabilization with external skeletal fixation (ESF) of metatarsal rotation in 4 immature Bernese Mountain Dogs.
Study Design—Case series.
Animals—Bernese Mountain Dogs (n=4).

Authors: Störk CK, Petite AF, Norrie RA, Polton GA, Rayward RM.
Journal: JSAP

OBJECTIVES: To investigate whether West Highland white terriers exhibit significant variation in the position of the medial fabella compared to both small and large breed dogs. METHODS: Criteria for the normal location of the medial fabella on a caudocranial radiograph were established. A retrospective analysis was undertaken of a consecutive series of bilateral caudocranial stifle joint radiographs from 70 West Highland white terriers, 100 small and 100 large control dogs by three reviewers.

Category: Deformity - Knee
Authors: Voss K, Lieskovsky J.
Journal: J Feline Med Surg

Three immature cats with growth abnormalities of the distal radius secondary to trauma were presented between July 2001 and July 2003. Initial injuries included a Salter-Harris type II fracture of the distal radial physis in one cat, fractures of the styloid process of the ulna in two cats, and metacarpal fractures in one cat. The cats were between 3.5 and 4.5 months of age at the time of injury. Damage to the distal radial physis resulted in a variable degree of shortening of the radius in all cats.

Authors: PETER BÖTTCHER, Dr Med Vet, Diplomate ECVS 1 , HINNERK WERNER, DVM 1 , EBERHARD LUDEWIG, Dr Med Vet, Diplomate ECVDI 1 , VERA GREVEL, Prof Dr Med Vet, Diplomate ECVS 1 , and GERHARD OECHTERING, Prof Dr Med Vet, Diplomate ECVAA 1
Journal: Vet Surg

ABSTRACT Objective—To determine the sensitivity and specificity of visual estimation of radioulnar incongruence (RUI) in the canine elbow by use of 3-dimensional (3D) image rendering. Study Design—Experimentally induced negative and positive RUI. Sample Population—Canine (>20 kg) cadaveric right thoracic limbs (n=8). Methods—Radial shortening and lengthening of 1 and 2 mm were performed extending an established surgical in vitro model of RUI.

Category: Deformity - Elbow - Imaging
Authors: ERIN R. PASTER, DVM 1,2 , DARRYL N. BIERY, DVM, Diplomate ACVR 1,2 , DENNIS F. LAWLER, DVM 1,2 , RICHARD H. EVANS, DVM, MS 1,2 , RICHARD D. KEALY, PhD 1,2 , THOMAS P. GREGOR, MS 1,2 , PAMELA J. McKELVIE, VMD 1,2 , and GAIL K. SMITH, VMD, PhD 1,2
Journal: Vet Surg

ABSTRACT
Objective—To longitudinally characterize the radiographic appearance of un-united medial epicondyle (UME) of the humerus, evaluate UME association with osteoarthritis (OA) and consider its relevance to the elbow dysplasia complex.
Study Design—Longitudinal cohort study.
Animals—Labrador retrievers (n=48) from 7 litters.

Authors: NOEL FITZPATRICK, MVB, CertVR, CertSAO 1 , THOMAS J. SMITH, MA VetMB CertSAS 1 , JERRY O'RIORDAN, MVB CertSAS 1 , and RUSSELL YEADON, MA VetMB 1
Journal: Vet Surg

ABSTRACT
Objective—To report clinical experience with autogenous bone grafting, with and without metallic implants, for treatment of lameness attributed to incomplete ossification of the humeral condyle (IOHC).
Study Design—Case series.
Animals—Dogs (n=8; 9 elbows) with IOHC.

Authors: Inauen R, Koch D, Bass M, Haessig M.
Journal: VCOT

The influence of the tibial tuberosity conformation on cranial cruciate ligament (CrCl) rupture was evaluated and the size of the tibial tuberosity of healthy dogs (group H) was compared with dogs with CrCl rupture (group R) and dogs treated by tibial tuberosity advancement (TTA) (group T). The medio-lateral radiographs of 219 stifle joints were evaluated. Relative tibial tuberosity width (rTTW), proximal tibial tuberosity angle (PTTA), tibial plateau angle (TPA), tibial width (TW) and tibial plateau length (TPL) were measured on each radiograph.

Authors: STEWART RYAN, BVSc, MS, Diplomate ACVS 1 , NICOLE EHRHART, VMD, MS, Diplomate ACVS 1 , KELLY ZUEHLSDORFF, MS 1 , and SUSAN JAMES, PhD 1
Journal: Vet Surg

ABSTRACT Objective—To measure and compare the strain of wires tensioned with alternate (ALT) and simultaneous (SIM) tensioning in a single-ring fixator construct and compare the stiffness of these constructs under axial loading. Study Design—Experimental mechanical study. Sample Population—Twenty-four, 84 mm diameter, single-ring constructs. Methods—Twenty-four, 84 mm diameter, single-ring constructs were assembled using 2 1.6 mm wires placed at a 60° angle tensioned with either ALT or SIM technique to 90 kg tension.