Knee

Authors: A. Shipov, R. Shahar, R. Joseph, J. Milgram
Journal: VCOT

A seven-year-old, 41 kg, intact, cross breed dog, was presented with a history of bilateral hind limb lameness after falling from a height of 1 m. Clinical and radiographic findings were consistent with bilateral patellar tendon rupture. Surgical repair was performed bilaterally. The tendons were sutured primarily, and an internal splint of nylon leader was added. Good apposition of the severed tendon ends had been achieved intraoperatively; however, post operative radiographs showed supra-trochlear displacement of both patellae.

Authors: B. A. Lewis1, D. A. Allen1, T. D. Henrikson2, T. W. Lehenbauer3
Journal: VCOT

In the human and veterinary orthopaedic literature it has been implied that intercondylar notch stenosis is a mechanical factor in cranial cruciate ligament rupture and intraarticular graft failure. The patients in this study were classified as normal (32), unilateral cruciate rupture (23), or bilateral cruciate rupture (17). The dogs were placed under general anaesthesia and both stifles were scanned via computed tomography (CT) as previously described. Three CT slices at predetermined levels were evaluated within the notch.

Authors: Moreau M, Lussier B, Doucet M, Vincent G, Martel-Pelletier J, Pelletier JP
Journal: Vet Rec

To evaluate the effect of licofelone, an arachidonic acid substrate with combined inhibitory activity against 5-lipoxygenase and cyclooxygenases 1 and 2, a double-blind, randomised and placebo-controlled study was conducted in 33 client-owned dogs that were lame owing to hindlimb osteoarthritis. Seventeen of the dogs received a placebo and 16 were treated with 2.5 mg/kg licofelone twice a day for 28 days.

Authors: Cabrera SY, Owen TJ, Mueller MG, Kass PH.
Journal: JAVMA

Objective-To compare tibial plateau angle (TPA) in dogs with unilateral versus bilateral cranial cruciate ligament (CCL) rupture, to compare right versus left TPA in dogs with bilateral CCL rupture, and to determine whether TPA can be used to predict whether a dog with unilateral CCL rupture would subsequently rupture the contralateral CCL. Design-Retrospective case series. Animals-150 dogs with unilateral (n = 58) or bilateral (92) CCL rupture. Procedures-Medical records were reviewed and TPA was recorded.

Authors: Mostafa AA, Griffon DJ, Thomas MW, Constable PD.
Journal: Vet Surg

OBJECTIVES: To evaluate the contribution of proximodistal alignment of the patella to patellar luxation, and to evaluate the structures contributing to proximodistal alignment of the patella relative to the femoral trochlea. STUDY DESIGN: Retrospective study using a convenience sample. ANIMALS: Medium to giant breed dogs (n=106). METHODS: Medical records and stifle radiographs of 106 dogs were reviewed.

Authors: Tivers MS, Mahoney P, Corr SA
Journal: Vet Surg

OBJECTIVE: To investigate the use of computed tomography (CT) arthrography in cadaveric canine stifles with particular emphasis on the diagnosis of meniscal injury. STUDY DESIGN: Prospective cadaver study. SAMPLE POPULATION: Pelvic limbs from adult Beagles (n=10). METHODS: After survey CT scan of each stifle oriented in the dorsal plane, positive contrast stifle CT arthrogram (CTA) was performed using the same slice orientation.

Category: Arthritis - Knee
Authors: Dismukes DI, Tomlinson JL, Fox DB, Cook JL, Witsberger TH
Journal: Vet Surg

OBJECTIVE: To describe a method for radiographic measurement of the mechanical joint angles of the tibia in the sagittal plane and report reference ranges for a population of dogs with cranial cruciate ligament disease, and specifically for Labrador Retrievers. STUDY DESIGN: Retrospective evaluation of radiographs. ANIMALS: Canine tibia (n=150) of dogs evaluated for cranial cruciate ligament disease; 104 tibiae were from Labrador Retrievers, 46 tibiae were from other medium- to large-breed dogs.

Category: Knee
Authors: Lauer S, Hosgood G, Ramirez S, Lopez M.
Journal: Vet Comp Orthop Traumatol.

Controlled mobilization after the surgical repair of multiple disrupted ligaments is considered to be essential for return to normal function. This study compared the outcome after post-surgical mobilization without any protection to mobilization with two transarticular external skeletal fixator hinge prototypes after surgical repair of experimental injuries to multiple stifle ligaments in 15 hounds.

Authors: Pinna S, Venturini A, Tribuiani AM.
Journal: J Small Anim Pract.

A crossbreed dog was presented with non-weight bearing on the right hindlimb and a semi-flexed stifle. Clinical examination and radiographic investigation showed a grade 3 medial patellar luxation, characterised by hypoplasia of the medial trochlear ridge. No other significant skeletal abnormalities were detected.

Category: Knee
Authors: B. Vidoni, I. Sommerfeld-Stur, E. Eisenmenger
Journal: EJCAP

During a period of eight years (1996 – 2004) 432 small and miniature breed dogs were screened for patellar luxation (PL). In order to achieve the diagnostic accuracy required for genetic screening to assist breeding programmes, examinations were based on the concept of a standardized examination protocol for patellar luxtion.

Category: Knee