Two large-breed dogs underwent delayed surgical repair of pelvic fractures with the aid of a skeletal traction device. Distraction and reduction in the fractures using the skeletal traction device were monitored by direct visualization and intraoperative fluoroscopy. Postoperative radiographs revealed good to near-anatomical bone reduction and fracture alignment without narrowing of the pelvic canal. Both dogs had complete functional recovery with no evidence of neurological deficits. The use of a skeletal traction device should be considered for reduction and fixation of delayed pelvic fractures.
A four-month-old male boxer dog was presented with a one-week history of acute right hindlimb lameness after an injury. Physical and radiographic examinations confirmed a femoral avulsion fracture of the caudal cruciate ligament. Surgical repair was elected using a combination of arthroscopy and arthrotomy to place a monofilament absorbable suture material through the parallel bone tunnels to reduce the avulsed bone fragment. The last follow-up examination 2.5 years postoperatively showed good to excellent limb function and mild periarticular changes.
This case report aimed to describe a surgical technique combining a secured pin intermandibular ventral epoxy resin (SPIVER) frame and an acetabular plate to manage a complex mandibular fracture configuration in a puppy. A four-month-old, entire male, German wirehaired pointer was referred for assessment of a combination of recent (three days before hospitalisation) and older traumatic (45 days before hospitalisation) facial injuries inflicted by the dam. CT revealed multiple mandibular and maxillary fractures with complex acute mandibular fractures requiring surgical stabilisation. wo techniques were combined on stabilisation of the mandible: a single acetabular plate 2.7 to repair the mandibular angle fracture and a SPIVER frame to repair the comminuted mandibular fracture. Both fractures healed uneventfully, and the dog had normal jaw function one year postoperatively. Occlusion was not modified compared with the preoperative condition, considering that the patient already had a malocclusion defect due to old lesions. The combination of two different osteosynthesis techniques had satisfactory short-term and long-term outcomes in this puppy.
Anecdotally, during the review of CT and MRI studies of canine patients including the cranial cervical spine, authors have identified a small osseous structure between the atlas (C1) and axis (C2) with no relevant clinical signs. This structure appeared comparable to a “persistent ossiculum terminale” in humans. The aim of this retrospective, multi‐center, case series study was to describe the CT and MRI features of presumed persistent ossiculum terminale in a group of dogs presented with unrelated medical conditions. Two databases (the imaging database of the teleradiology service VetCT Specialists and the clinical database of the University of Vienna) were scrutinized by different approaches. Medical records of dogs that underwent imaging investigation (CT and/or MRI) that included the atlanto‐axial junction were reviewed. Data collected included signalment, sex, breed, age, presenting symptoms, and final diagnosis. Eighteen dogs met the inclusion criteria. Mean age was 85 months (6–166) and breed variation was present. A total of 20 imaging studies were evaluated: CT was performed in 17 dogs; MRI in three dogs; two dogs had both MRI and CT performed. In all cases the presence of at least one small osseous body on the cranial aspect of the odontoid process compatible with a persistent ossiculum terminale was identified as a possible incidental finding without any overt clinical implications. Findings indicated that a small osseous body on the cranial aspect of the odontoid process (presumed persistent ossiculum terminale) in CT and MRI studies may be present in dogs with no clinical signs of neurologic disease.
Objective The purpose of this study was to evaluate the use of intraoperative skeletal traction for the surgical repair of pelvic fractures. Opposition and anchorage points for the application of traction were the same in all cadavers.
Materials and Methods Cadavers from 10 adult dogs with a median body weight of 31.9 kg (range: 20–38 kg) were used. The fractures were experimentally created in all dogs to produce an oblique iliac fracture on the left side and a transverse fracture on the right (total of 20 fractures) at the same time. Dogs were positioned on an operating table in lateral recumbency and traction was applied first on the left side and then on the right after changing the position of the animal. Increasing amounts of traction were applied to each fracture and recorded until a distraction length of 2 cm was created between the bone fragments. The Kolmogorov–Smirnov test confirmed normality of the data, and a paired t-test was used to compare traction of the two fracture types.
Results The measurement of traction and distraction of the bone fragments was possible in all fractures. A distraction of at least 2 cm was obtained with a mean peak traction force of 15.4 kg for transverse fractures and 18.6 kg for oblique fractures.
Conclusion Intraoperative skeletal traction provides a useful and reliable tool for the reduction in experimental oblique and transverse iliac fractures in dogs. There were strong correlations between body weight and the force required to obtain a distraction length of 2 cm in the fracture line; for oblique fractures, traction was related to the square of body weight, and for transverse fractures, the relationship between weight and required traction was near linear.
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