Clinica Veterinaria Milan Sud

Peschiera Borromeo, Italy

Clinica Veterinaria Milan Sud

Peschiera Borromeo, Italy

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Petazzoni M.,Clinica Veterinaria Milan Sud | Urizzi A.,Clinica Veterinaria Dott. | Verdonck B.,Huisdierchirurgie | Jaeger G.,VCA Newark
Veterinary and Comparative Orthopaedics and Traumatology | Year: 2010

This report describes the Fixin internal fixator systema, a fracture fixation device characterised by a locking conical coupling between screw heads and titanium alloy inserts that are screwed into a stainless steel plate construct. The mechanical principles, implants, instruments and surgical technique are discussed. © Schattauer 2010.


Petazzoni M.,Clinica Veterinaria Milan Sud | Nicetto T.,Clinica Veterinaria Milan Sud | Vezzoni A.,Clinica Veterinaria Vezzoni | Piras A.,Oakland Small Animal Veterinary Clinic | Palmer R.,Colorado State University
Veterinary and Comparative Orthopaedics and Traumatology | Year: 2012

Objectives: To describe the surgical treatment of pes varus in Dachshund dogs by medial opening wedge osteotomy of the distal tibia stabilized with a locking plate system and to retrospectively report the clinical and radiographic outcomes. Materials and methods: Lameness in nine limbs of seven Dachshund dogs with pes varus deformity was treated with corrective osteotomy at or near the centre of rotation of angulation as defined by the intersection of the proximal and distal mechanical axes determined on caudo-cranial radiographs. Outcomes evaluated included comparison of pre-and postoperative radiographic measurements of frontal angulation and lameness assessment. Results: Lameness resolved in eight limbs and improved in one limb. All osteotomies healed and no implant complications were detected. Mean preoperative radiographic measurements were: mechanical medial proximal tibial angle (mMPTA) = 91.1° (range 87.6°-95°), mechanical medial distal tibial angle (mMDTA) = 62.1° (range 51.9°-69.6°). Mean postoperative measurements were: mMPTA 92.4° (range 78°-97.5°), mMDTA 81.8° (range 76°-87°). Measurable under-correction was common, though seldom visually or functionally evident. Clinical significance: Pes varus deformity in Dachshunds can be treated by medial opening wedge osteotomy of the distal tibia stabilized with a locking plate system. Care to preserve the lateral cortex of the osteotomy may help avoid under-correction. © Schattauer 2012.


Nicetto T.,Clinica Veterinaria Milan Sud | Petazzoni M.,Clinica Veterinaria Milan Sud | Urizzi A.,Clinica Veterinaria Dr Andrea Urizzi | Isola M.,University of Padua
Veterinary and Comparative Orthopaedics and Traumatology | Year: 2013

Objectives: To retrospectively evaluate the stabilization of appendicular fractures in dogs using the Fixin locking plate system. Materials and methods: Medical records and radiographs of dogs with fractures stabilized with the Fixin system in the period from May 2005 to September 2010 were reviewed. For each patient, data pertaining to signalment, the nature of the fracture, implants used, and evidence of fracture healing were recorded. The outcome and complications were determined from clinical and radiographic follow-up examinations. Limb function was evaluated between 40 days and 90 days postoperatively. Owners of pets with complications were contacted by phone for long-term follow-up. Results: Eighty-two fractures in seventy-five dogs met the inclusion criteria for the study. Radiographic re-examinations were carried out between eight days to two years (median 60 days) following surgery. Seventy-three out of 82 fractures (89%) reached union without complications. Major complications were seen in six dogs (7%). Limb function was graded as 'normal' in 73/75 (97%) dogs and 'mild lameness' in 2/75 (3%) cases. Clinical significance: Despite a modest complication rate, the Fixin locking bone plating system appears to be an acceptable choice of implant for the stabilization of appendicular fractures in dogs. © Schattauer 2013.


Petazzoni M.,Clinica Veterinaria Milan Sud | Briotti F.,Ambulatorio Veterinario Venini | Beale B.,Houston
Veterinary and Comparative Orthopaedics and Traumatology | Year: 2015

This report describes a case of a solitary unicameral patellar bone cyst in a young dog. A five-month-old, male Dobermann Pinscher dog was referred for a 10-day left hindlimb lameness. A mild swelling of the peripatellar soft tissues of the left patella was detected upon physical examination. Signs of pain were elicited upon direct palpation of the patella. Radiographic examination revealed an oval radiolucency within the medullary cavity at the base of the left patella. Radiographic examination, arthroscopy, and histopathology findings supported the diagnosis of a benign patellar bone cyst. The condition was treated by surgical curettage and autogenous bone graft harvested from the ipsilateral proximal tibia. Clinical signs, including lameness and signs of pain upon deep palpation, disappeared three weeks after surgery. Follow- up re-evaluation five years after surgery revealed no recurrence of the cyst and the patient was asymptomatic. © 2015 Schattauer.


Petazzoni M.,Clinica Veterinaria Milan Sud | Nicetto T.,Diagnostica Piccoli Animali
Veterinary and Comparative Orthopaedics and Traumatology | Year: 2015

Objectives: To describe the use of the Fixin locking plate system for stifle arthrodesis in dogs and to retrospectively report the clinical and radiographic outcomes in six cases. Materials and methods: Medical records of dogs that had arthrodesis with the Fixin locking plate system were reviewed. For each patient, data pertaining to signalment and implant used were recorded. Plate series and thickness, number of screws placed, number of cortices engaged, and screw diameters were also recorded. The outcome was determined from clinical and radiographic followups Radiographic outcomes assessed included the measurement of the postoperative femoral-tibial angle in the sagittal plane. Results: Six dogs met the inclusion criteria for the study. Mean body weight was 13 kg (range: 3 - 34 kg). Radiographic follow-up (mean: 32 weeks, range: 3 - 52 weeks) was available for all dogs. In one case, an intraoperative complication occurred. In another case, a tibial fracture occurred 20 days after surgery. All arthrodeses healed and no implant complication was detected although all cases had mechanical lameness. Clinical significance: Stifle arthrodesis can be performed successfully using a Fixin locking plate system. © 2015 Schattauer.


Petazzoni M.,Clinica Veterinaria Milan Sud | Nicetto T.,Diagnostica Piccoli Animali
Veterinary and Comparative Orthopaedics and Traumatology | Year: 2014

This report describes the treatment of traumatic carpal hyperextension in a giant breed dog by pancarpal arthrodesis using a custom-made Fixin locking plate, created with the aid of a three-dimensional plastic model of the bones of the antebrachium produced by rapid prototyping technology. A three-year-old 104 kg male Mastiff dog was admitted for treatment of carpal hyperextension injury. After diagnosis of carpal instability, surgery was recommended. Computed tomography images were used to create a life-size three-dimensional plastic model of the forelimb. The model was used as the basis for constructing a customized 12-hole Fixin locking plate. The plate was used to attain successful pancarpal arthrode-sis in the animal. Radiographic examination after 74 and 140 days revealed signs of osseous union of the arthrodesis. Further clinical and radiographic follow-up examination three years later did not reveal any changes in implant position or complications. © Schattauer 2014.


Petazzoni M.,Clinica Veterinaria Milan Sud
Veterinary and Comparative Orthopaedics and Traumatology | Year: 2016

Objective: To report on a novel surgical procedure to treat a long segmental tibial defect in a five-year-old 5 kg spayed female Main Coon cat using transverse distraction osteogenesis in the contralateral tibia to create a free autograft. Methods: A long free bone segment was created from the cranial half of the normal tibia. A circular external fixator was constructed to give the segment 7 mm of cranial distraction. After 42 days the widened section of tibial bone was removed and transferred to the defect in the contralateral tibia. Locking plates were used to stabilize the graft and to protect the donor tibial sites. Results: By 27 months, both tibias were healed, all implants had been removed, function was excellent, and the overall limb length was 90% of the normal side. Clinical relevance: Compared with longitudinal distraction osteogenesis in long bone defects, transverse distraction of a normal bone requires a significantly shorter distraction distance to produce a similar amount of bone. Thus, distraction time is reduced, with less likelihood of significant soft tissue damage. New bone may be more reliably regenerated in a normal limb due to better tissue health, and native bone may be more readily incorporated than allografts in compromised sites. Disadvantages include the increased morbidity, as well as the risk and expense associated with involvement of a normal limb. © Schattauer 2016.


PubMed | Clinica Veterinaria Milan Sud
Type: Journal Article | Journal: Veterinary and comparative orthopaedics and traumatology : V.C.O.T | Year: 2013

To retrospectively evaluate the stabilization of appendicular fractures in dogs using the Fixin locking plate system.Medical records and radiographs of dogs with fractures stabilized with the Fixin system in the period from May 2005 to September 2010 were reviewed. For each patient, data pertaining to signalment, the nature of the fracture, implants used, and evidence of fracture healing were recorded. The outcome and complications were determined from clinical and radiographic follow-up examinations. Limb function was evaluated between 40 days and 90 days postoperatively. Owners of pets with complications were contacted by phone for long-term follow-up.Eighty-two fractures in seventy-five dogs met the inclusion criteria for the study. Radiographic re-examinations were carried out between eight days to two years (median 60 days) following surgery. Seventy-three out of 82 fractures (89%) reached union without complications. Major complications were seen in six dogs (7%). Limb function was graded as normal in 73/75 (97%) dogs and mild lameness in 2/75 (3%) cases.Despite a modest complication rate, the Fixin locking bone plating system appears to be an acceptable choice of implant for the stabilization of appendicular fractures in dogs.


PubMed | Clinica Veterinaria Milan Sud
Type: Case Reports | Journal: Veterinary surgery : VS | Year: 2012

To report treatment of a large-breed puppy with combined distal femoral valgus and length deficit caused by partial distal physeal closure.Clinical report.Bernese Mountain Dog (4.5-month-old male).The puppy was admitted for evaluation of a progressive severe left pelvic limb lameness (grade 3/4) of 6-week duration. Distal femoral valgus and severe length deficit deformity were treated by acute angular correction using a closing wedge ostectomy and progressive rapid-rate callus distraction using a dynamic, telescoping unilateral External Skeletal Fixator (ESF) designed for people. After acute angular correction and a 3-day latency period, a mean linear distraction rate of 3 mm/day was maintained for 3 weeks. The dynamic ESF (dESF) was removed at 4 weeks, after a 1-week consolidation phase.The dESF was stable and functional during distraction and bone healing. Distal femoral valgus conformation improved 50 (from 41 to 91) and femoral length increased 42 mm at dESF removal (from 158 mm to 200 mm; 27%). After cessation of bone growth, no valgus and minimal (6%) length deficit were detected. At 4, 5, 6, 12, and 24 months after surgery, the dog was walking, trotting, and galloping normally.Acute angular correction and progressive rapid-rate callus distraction using a unilateral dESF allowed satisfactory treatment of combined distal femoral valgus and length deficit in a large-breed puppy.


PubMed | Clinica Veterinaria Milan Sud
Type: Journal Article | Journal: Veterinary and comparative orthopaedics and traumatology : V.C.O.T | Year: 2012

To evaluate the acetabular ventroversion obtained with a modified triple pelvic osteotomy (2.5 PO) compared with that resulting from standard double pelvic osteo-tomy (DPO).Ex vivo study.Seven pelves obtained from skeletally mature dogs with a total body weight ranging from 26-41 kg were used.Unilateral DPO technique and dorsal ischial mono-cortical osteotomy were performed on every right hemipelvis. Angular ventral rotation was measured by determining the relative orientation of two Kirschner wires placed in the ilial wing and in the dorsal acetabular rim.The mean angle of ventroversion was 9.5 5.2 degrees for the DPO group (range 2.1-18.1) and 10.9 4.8 degrees for the 2.5 PO group (range 4.1-19.5). The mean difference between the 2.5 PO and DPO was 1.5 0.6 degrees (range 0.5-2.1).The 2.5 PO technique increased acetabular ventroversion versus DPO.

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