Authors: Brunnberg MM, Engelke E, Gielen IM, van Bree HJ, Hoffmann JE, Brunnberg L, Waibl HR.
Journal: AJVR

Objective-To evaluate cartilage thickness of the talus (especially at sites predisposed to osteochondrosis dissecans [OCD]) in growing and adult dogs not affected with OCD. Sample-Tarsocrural joints from cadavers of 34 juvenile (approx 3 months old) and 10 adult dogs. Procedures-Tarsal cartilage thickness was examined via a stereophotography microscopic system. Articular cartilage thickness was determined at 11 locations on longitudinal slices of the trochlear ridges and the sulcus between the ridges and at 2 locations in the cochlea tibiae.

Authors: Bright SR, May C.
Journal: JSAP

A six-year-old, female, neutered, whippet was presented for evaluation of a severe, sudden-onset right pelvic limb lameness. The extensor mechanism of the right stifle was intact and there was periarticular swelling in the right stifle. Radiography showed a fracture of the distal pole of the patella. The distal fragment was approximately 25% of the patellar length and the fracture was deemed non-reconstructable. Fracture fragment removal was performed arthroscopically, which led to an excellent clinical outcome.

Authors: Don Hulse, DVM, Diplomate ACVS & ECVS 1,2 , Brian Beale, DVM, Diplomate ACVS 1,2 , and Sharon Kerwin, DVM, Diplomate ACVS 1,2
Journal: Veterinary Surgery

Objective: To describe the long-term (range, 2–69 months) arthroscopic appearance of intraarticular structures of the stifle after tibial plateau leveling osteotomy (TPLO).
Study Design: Case series.
Animals: Dogs (n=63) that had repeat arthroscopic examination of the stifle after TPLO for treatment of a cranial cruciate ligament (CCL) deficient stifle.

Authors: Bright SR.
Journal: JSAP

An 11-month-old, male neutered, domestic short-haired cat presented for evaluation of sudden onset right pelvic limb lameness. Radiography showed features consistent with unilateral osteochondritis dissecans (OCD) of the lateral femoral condyle in the right stifle. Arthroscopic examination of the stifle was used to confirm the presence of an articular cartilage lesion and the presence of loose cartilage within the joint. The loose cartilage fragments were removed arthroscopically.

Category: Arthroscopy - Pediatrics
Authors: Jardel N, Crevier-Denoix N, Moissonnier P, Viateau V.
Journal: VCOT

Objectives: To describe the relationship of the major muscular, ligamentous and neurovascular structures in relation to standard medial elbow arthroscopic portals used in dogs, and to evaluate their potential iatrogenic lesions. Design: Anatomical study using 20 canine cadaveric elbows. Methods: Arthroscopic explorations were performed using medial portals. Three 4 mm orthopaedic pins were introduced in place of the arthroscope, egress canula and instrumental portals. Limbs were dissected. Distances between pins and neurovascular structures were measured.

Category: Arthroscopy - Elbow
Authors: Werner H, Winkels P, Grevel V, Oechtering G, Böttcher P.
Journal: VCOT

Objectives: To determine the sensitivity and specificity of arthroscopic estimation of positive and negative radio-ulnar incongruence (RUI) in the canine elbow joint. Methods: Experimental radial shortening and lengthening by 1 and 2 mm increments were performed in nine right elbow joints, extending an established surgical in vitro model of RUI. Arthroscopic estimation of each artificially produced radio-ulnar joint conformation (RUJC) was done using a graduated hook probe.

Category: Arthroscopy - Elbow
Authors: Riener S, Lehmann K, Lorinson D, Skalicky M.
Journal: VCOT

We describe the creation of a cranial instrument portal for shoulder joint arthroscopy in the dog using a target device that has been successfully employed for the caudal access. We compared the method with a conventional triangulation technique. The shoulder joints of 60 dog cadavers were investigated by arthroscopy and the two methods were compared on the basis of pre-defined parameters of outcome. Time, the number of trials, success, damage to cartilage and the accessibility of intra-articular structures were assessed.

Category: Arthroscopy - Shoulder
Authors: Ridge P.
Journal: VCOT

The aim of this cadaveric study was to determine the normal arthroscopic anatomy of the feline shoulder from a caudolateral arthroscope portal, to compare this with the gross anatomy evident upon dissection, and to determine the degree of iatrogenic trauma caused by the arthroscopy. A 1.9 mm, 30 degrees fore oblique arthroscope via a caudolateral portal, and a 21-gauge needle via a craniolateral egress portal were used to assess intra-articular structures in eight feline cadaveric shoulders.

Category: Arthroscopy - Shoulder
Authors: JILL K. LUTHER, DVM 1 , CRISTI R. COOK, DVM, MS, Diplomate ACVR 1 , and JAMES L. COOK, DVM, PhD, Diplomate ACVS 1
Journal: Vet Surg

Objective—To evaluate after 12 weeks the effects of caudal medial meniscal release (MR) in the cranial cruciate ligament-intact canine stifle.
Study Design—Blinded, prospective in vivo study.
Animals—Purpose-bred hound dogs (n=10).

Authors: Horstman CL, McLaughlin RM, Elder SH, Pool RR Jr, Read RR, Boyle CR.
Journal: VCOT

OBJECTIVE: To determine the short- and long-term changes in the biomechanical properties and metabolic activity of articular cartilage following the remote application of bipolar radiofrequency (bRF) and monopolar radiofrequency (mRF) energy within the rabbit stifle joint. METHODS: The rabbits were randomly assigned to either Group-1 (normal rabbit food), or they were assigned to Group-2 (2% Cosequin((R)) in the diet). Each rabbit underwent bilateral stifle arthroscopy with either bRF or mRF applied to the infrapatellar fat pad for 45 seconds.