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1.
Vet Comp Orthop Traumatol ; 29(4): 320-4, 2016 Jul 19.
Article in English | MEDLINE | ID: mdl-27432271

ABSTRACT

OBJECTIVES: 1) To describe a radiographic method for determination of joint orientation lines and anatomical joint angles in orthogonal planes of feline radii; 2) to establish a range of normal radial joint orientation angles and anatomical axes in a feline population; and 3) to assess the repeatability and reliability of this methodology. METHODS: The radial anatomical axis, elbow and carpal joint reference lines, and the intersecting angles of each: anatomical medial proximal (aMPRA) and lateral distal radial angles (aLDRA), anatomical caudal proximal (aCdPRA) and distal radial angles (aCdDRA), and sagittal procurvatum (SP) were determined on the orthogonal radiographs of 14 feline limbs. Intra- and inter-observer agreement was determined based on repeated independent readings by two observers using Bland-Altman plots. RESULTS: The mean ± standard deviation (SD) and 95% confidence interval (CI) for the feline radii were: aMPRA 70.97 ± 3.38° (70.07 - 71.88°), aLDRA 91.72 ± 3.26° (90.84 - 92.59°), aCdPRA 100.5 ± 3.14° (99.62 - 101.3º), aCdDRA 79.95 ± 3.77° (78.94 - 80.96°) and SP 11.07 ± 1.87° (10.57 - 11.58°). The highest mean bias found for both observers was -1.6 to -1.8° for the angle aCdDRA. Sagittal procurvatum had the lowest mean bias for intra- and inter-observer. CLINICAL SIGNIFICANCE: The results obtained showed that the methodology used in our study was repeatable and reliable. The values established for the normal radial anatomical angles are relevant for future use as a reference for surgical treatment of angular deformities, malunions, non-unions, comminuted fractures, and future orthopaedic research.


Subject(s)
Arthrometry, Articular/veterinary , Cats/anatomy & histology , Joints/anatomy & histology , Animals , Bone and Bones/diagnostic imaging , Joints/diagnostic imaging , Radiography/veterinary , Reference Values , Reproducibility of Results
2.
Vet Comp Orthop Traumatol ; 29(1): 39-45, 2016.
Article in English | MEDLINE | ID: mdl-26511285

ABSTRACT

OBJECTIVE: To retrospectively review and describe the incidence of complications associated with tibial tuberosity advancement (TTA) surgical procedures in a group of Boxer dogs (n = 36 stifles) and compare the data with a non-Boxer control population (n = 271 stifles). METHODS: Retrospective analysis of medical records to identify all dogs that underwent TTA surgery due to cranial cruciate ligament disease. These records were categorized into two groups: Boxer dogs and non-Boxer dogs (controls - all other breeds). RESULTS: Of the 307 stifles included, 69 complications were reported in 58 joints. The complication rate differed significantly for Boxer dogs (16/36 stifles) and non-Boxer dogs (42/271 stifles), corresponding to an odds ratio of 5.8 (confidence interval: 1.96-17.02; p-value <0.001). Boxer dogs were more likely to undergo revision surgery and to develop multiple complications. The incidence of tibial tuberosity fractures requiring surgical repair (2/36 versus 1/271) and incisional infections requiring antibiotic treatment (three in each group) was significantly higher in the Boxer group. CLINICAL SIGNIFICANCE: Boxer dogs had more major and multiple complications after TTA surgery than the control non-Boxer group; these complications included higher rates of revision surgery, tibial tuberosity fractures requiring stabilization, and infection related complications. The pertinence and value of breed-specific recommendations for cranial cruciate ligament disease appears to be a subject worthy of further investigation.


Subject(s)
Anterior Cruciate Ligament/surgery , Dog Diseases/etiology , Dogs/surgery , Postoperative Complications/veterinary , Tibia/surgery , Animals , Dog Diseases/epidemiology , Female , Incidence , Male , Retrospective Studies , Species Specificity
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