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  • Author or Editor: Dirsko J. F. von Pfeil x
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Abstract

CASE DESCRIPTION

A 7.5-year-old 37.8-kg (83.2-lb) sexually intact male German Shepherd Dog (dog 1) and a 2.6-year-old 28.2-kg (62.0-lb) sexually intact male Dutch Shepherd (dog 2), both apprehension police dogs, were admitted for evaluation of left and right thoracic limb lameness, respectively.

CLINICAL FINDINGS

In both dogs, signs of pain were elicited on palpation of the shoulder joint in the affected limb, and a distinct popping of the biceps brachii tendon (BT) was palpable on the craniomedial aspect of the affected joint on flexion and extension and was associated with moderate signs of pain. Biceps brachii tendon luxation (BTL) was diagnosed with dynamic musculoskeletal ultrasonography (both dogs) and MRI (dog 1).

TREATMENT AND OUTCOME

Arthroscopic BT release by tenotomy was performed in both dogs. Lameness appeared to have resolved by 8 weeks after surgery and had not recurred by the last follow-up communications at 36 and 9 months after surgery for dogs 1 and 2, respectively. Both dogs successfully returned to their level of work performed before their injury.

CLINICAL RELEVANCE

Our findings for the dogs of the present report suggested that arthroscopic BT release could be considered a viable treatment option for BTL in dogs, including police dogs or other high-performance athletic dogs. Although our findings provided encouraging results, further research, best conducted with a multicenter prospective randomized study, would be needed to establish the most reliable treatment of BTL in high-performance athletic or working dogs.

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in Journal of the American Veterinary Medical Association

Abstract

OBJECTIVE To determine which method (lateral fabellotibial suture [LFS], tibial plateau leveling osteotomy [TPLO], tibial tuberosity advancement [TTA], or tightrope-like braided multifilament suture secured with metallic buttons [TR]) Veterinary Orthopedic Society (VOS) members preferred for treating cranial cruciate ligament rupture (CCLR) in dogs weighing > 15 kg (33 lb), identify factors associated with this preference, and assess concerns related to surgical implant material used.

DESIGN Cross-sectional study.

SAMPLE 187 VOS members.

PROCEDURES All registered VOS members received an online survey from June to July 2016. Responses were compiled and evaluated for associations with method preferences and perceived complications.

RESULTS Overall response rate was 38.4% (221/575). Respondents had graduated from veterinary school a mean of 23 years prior to survey completion, and collectively they performed approximately 30,000 CCLR surgeries annually. The most commonly preferred method was TPLO (147 [78.6%]), followed by TTA (26 [13.9%]), the LFS procedure (11 [5.9%]), and the TR procedure (3 [1.6%]). The preference for TPLO was independent of board certification or college of training (American, European, or other College of Veterinary Surgeons). Non-board-certified surgeons, including general practitioners, also favored TPLO. The most common perceptions were that titanium implants (used for TTA) were associated with the lowest incidence of major complications, whereas braided multifilament suture (used for the TR procedure) was associated with the highest incidence of major complications.

CONCLUSIONS AND CLINICAL RELEVANCE Results suggested that TPLO was preferred for treating CCLR in dogs weighing > 15 kg and that the TR procedure was perceived as having the highest complication rate. With results of this survey in mind, use of the TR procedure should be considered cautiously when treating CCLR.

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in Journal of the American Veterinary Medical Association

Abstract

OBJECTIVE To characterize congenital laryngeal paralysis (CLP) in Alaskan Huskies.

DESIGN Prospective case series.

ANIMALS 25 Alaskan Huskies with CLP.

PROCEDURES Data were collected for each dog regarding signalment; history; results of physical, orthopedic, neurologic, and laryngeal examinations; esophagraphic findings; treatments; histologic findings; and outcomes.

RESULTS Severely affected dogs were profoundly dyspneic at birth or collapsed after brief exercise; less affected dogs reportedly tired easily or overheated with minimal exercise. Mean age at initial onset of clinical signs was 6.4 months. Blue eyes, white facial markings, and oral mucosal tags or tissue bands were noted in 23 (92%), 19 (76%), and 13 (52%) dogs. Neurologic examination revealed signs of mononeuropathy of the recurrent laryngeal nerve but not of polyneuropathy. Histologic examination revealed neurogenic atrophy of the cricoarytenoideus dorsalis muscle but no polyneuropathy. Eight (32%) dogs underwent unilateral cricoarytenoid lateralization, resulting in substantial clinical improvement, including ability to compete in sled dog races. Without surgery, 4 (16%) dogs died of asphyxiation, 10 (40%) had spontaneous improvement of clinical signs (but insufficient improvement to race), and 3 (12%) remained affected. Results of pedigree analysis suggested an autosomal recessive mode of CLP inheritance, with variable penetrance.

CONCLUSIONS AND CLINICAL RELEVANCE CLP in the evaluated Alaskan Huskies involved mononeuropathy of the recurrent laryngeal nerves, without polyneuropathy. Most affected dogs had blue eyes, white facial markings, and oral mucosal tags or tissue bands. Given the apparent genetic component to CLP in this breed, we recommend that dogs with these features be prevented from breeding.

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in Journal of the American Veterinary Medical Association

Abstract

Objective—To compare structural properties of a plate-rod combination–bone construct (PRCbc) and interlocking nail–bone construct (ILNbc) by use of an experimentally induced gap fracture in canine tibiae.

Sample Population—12 paired canine tibiae.

Procedure—Specimens were implanted with a plate-rod combination consisting of a 3.5-mm, limited-contact, dynamic-compression plate combined with an intramedullary rod or 6-mm interlocking nail. Ostectomy (removal of 10-mm segment) was performed. Paired constructs were loaded for bending, compression, or torsion measurements (4 constructs/group). Compliance was determined by fitting regression lines to the load-position curves at low (initial compliance) and high (terminal compliance) loads.

Results—Bending compliances did not differ significantly between constructs. For the ILNbc, initial compliance was greater than terminal compliance in compression and torsion. Initial compliance and terminal compliance for the PRCbc were similar in compression and torsion. Initial compliance in compression and torsion was greater for the ILNbc, compared with initial compliance for the PRCbc. Maximum deformations in bending and compression were similar between constructs; however, maximum torsional angle was significantly greater for the ILNbc, compared with values for the PRCbc.

Conclusions and Clinical Relevance—The study documented that for an experimentally induced gap fracture in canine tibiae, a plate-rod combination is a significantly less compliant fixation method in torsion and compression, compared with an interlocking nail. Considering the deleterious effects of torsional deformation on bone healing, a plate-rod combination may represent a biomechanically superior fixation method, compared with an interlocking nail, for the treatment of dogs with comminuted tibial diaphyseal fractures. (Am J Vet Res 2005;66:1536–1543)

Full access
in American Journal of Veterinary Research