Authors: Daems R, Janssens L, Béosier Y.
Journal: VCOT

One hundred and forty-five stifles of client-owned dogs that underwent corrective surgery for congenital medial patellar luxation were inspected for cartilage erosion on the articular surface of the patella. The lesions were mapped in surface percentage ranges of 20% and by location. Two-thirds of the patellae had cartilage erosion. Cartilage erosion varied between 0 and 100% of the total patellar articular surface and was localised mainly on the medial and distal side of the patella. Dogs with Grade IV patellar luxations and heavier dogs were more affected.

Authors: Carobbi B, Ness MG.
Journal: JSAP

OBJECTIVE: To estimate specificity, sensitivity, positive predictive value and negative predictive value of tests and signs used for the diagnosis of cranial cruciate ligament failure in dogs. METHODS: One stifle in each of 42 dogs was examined: 25 "affected" and 17 "control" dogs. All dogs were subjected to the following tests when conscious: cranial drawer, tibial compression, patellar tendon palpation and palpation of the medial aspect of the joint.

Category: Knee
Authors: Renwick AI, McKee WM, Emmerson TD, House AK.
Journal: JSAP

OBJECTIVE: To document the effect of variable tibial morphology on the planning and execution of the triple tibial osteotomy (TTO) procedure in dogs and complications encountered while becoming familiar with the technique. METHODS: The records of 21 consecutive cases that had a TTO performed were reviewed. Preoperative tibial morphology was assessed. Modifications in the described technique and complications were documented. Postoperative outcome was evaluated using a client-based questionnaire.

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: McCarthy R.
Journal: JSAP

No Abstract Provided

Category: Knee
Authors: Samii VF, Dyce J, Pozzi A, Drost WT, Mattoon JS, Green EM, Kowaleski MP, Lehman AM.
Journal: Vet Radiol Ultrasound

The purpose of this study was to evaluate the utility of single-detector computed tomographic arthrography (CT arthrography) for the diagnosis of cranial and caudal cruciate ligament and meniscal lesions in the dog stifle. Four normal and 25 abnormal stifle joints, determined to have lesions related to intra-articular ligamentous insufficiency based on clinical history, orthopedic examination, and survey orthogonal radiographs, were imaged using a previously developed CT arthrography protocol. Surgery was performed immediately following the CT procedure.

Category: Imaging - Knee
Authors: Mostafa AA, Griffon DJ, Thomas MW, Constable PD.
Journal: AJVR

Objective-To evaluate skeletal characteristics of pelvic limbs with and without cranial cruciate ligament (CCL) deficiency in Labrador Retrievers. Animals-30 adult purebred Labrador Retrievers. Procedures-Pelvic limbs (n = 28) of 14 dogs without CCL deficiency were classified as control limbs, whereas the limbs of 16 dogs with CCL deficiency were considered affected by (18 limbs) or predisposed to (10 contralateral limbs of dogs with 1 affected limb) CCL deficiency. Skeletal characteristics were evaluated via physical examination, radiography, and computed tomography.

Authors: Langley-Hobbs SJ, Ball S, McKee WM.
Journal: Vet Record

Ten cats with a mean age of eight years and five months had suffered proximal transverse tibial fractures; in four of them both tibiae had fractured at different times. All the cats also had bilateral non-union patellar fractures, and nine of them had evidence of fractures elsewhere, including acetabular, ischial, humeral condylar and rib fractures, which had occurred before or after the tibial fractures. All the tibial fractures were proximal and transverse.

Authors: Serwa D, Lorinson K, Lorinson D, Skalicky M.
Journal: JAVMA

OBJECTIVE: To compare values for tibial plateau angle (TPA) obtained in dogs by conventional and digital methods. DESIGN: Evaluation study. ANIMALS: 37 dogs with stifle joint abnormalities. PROCEDURES: In all dogs, radiographs of both stifle joints were obtained by conventional and digital means. On conventionally acquired radiographs, TPA was measured with a protractor and fine-point pencil in accordance with standard guidelines. A software program was used to measure TPA on digitally acquired radiographs. Two viewers with different levels of experience performed all measurements 3 times.

Category: Imaging - Knee
Authors: McGuinness K, Doyle RS, Glyde MR.
Journal: Vet Record

A lateral tibial head buttress plate designed for human beings was used to repair a highly comminuted tibial fracture in a two-year-old male labrador retriever caused by a gunshot wound. The plate was placed in a bridging fashion to provide minimal disruption of the fracture site and minimise surgical time.