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Comparison Of Oral And Ventral Laryngotomy Approaches Of Vocal Cordectomy In Dogs

by Zohaib Khan (2013-VA-612) | Dr. Uzma Farid Durrani | Dr. Asim Khalid Mahmood | Prof. Dr. Aneela Zameer Durrani.

Material type: book Book; Literary form: not fiction Publisher: 2015Dissertation note: Phonation is a way of communication for dogs and it quite normal for dog to bark under certain conditions but sometimes due to mismanagement and negligence too much phonation may become the worst part of dog keeping causing nuisance. There are different techniques that can be adopted to treat this problem. One of these techniques is surgical devocalization. Devocalization refers to the partial or complete excision of vocal cords that emit sound. The present study was conducted on 10 clinical cases of dogs divided into 2 groups, each with 5 dogs. One group was operated for vocal cordectomy through oral approach while the other group was operated for vocal cordectomy through ventral laryngotomy approach. The parameters of this research were studied for the period of 2 months. The study results were analyzed using Chi-square test on SPSS version 17.0. The results showed that in early post surgical period there was no significant difference of phonation after both surgical techniques however, a significant difference of phonation was observed between dogs operated through oral and ventral laryngotomy surgical techniques of vocal cordectomy during late post surgical period means 10 days after surgery. On the basis of the results of this study it was concluded that ventral Laryngotomy approach is better than oral approach for vocal cordectomy in terms of better controlled of hyper phonation however, ventral laryngotomy approach is likely to be associated with a higher chances of post surgical complications Availability: Items available for loan: UVAS Library [Call number: 2414-T] (1).

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Comparative Efficacy Of Autograft And Synthetic Bone Graft For The Repair Of Bone Defects

by Amjad Islam | Dr. Zia Ullah | Dr. Asim Khalid Mahmood | Prof. Dr. Aneela Zameer Durrani.

Material type: book Book; Literary form: not fiction Publisher: 2015Dissertation note: Bone graft was considered as the most commonly transplanted tissue to enhance ability to heal fractures, fracture complications and bone defects. Autologous (or autogenous) bone grafting involves utilizing bone obtained from the same individual receiving the graft. Autogenous bone graft was considered to be the gold standard for replacement of lost tissue. New bone graft substitutes have been devised in recent decades such as synthetic bone graft i.e. poly methyl methacrylate (PMMA), demineralized bone matrix (DBM), bone morphogenetic proteins (BMPs), calcium phosphate (CP), calcium sulfate (CS), hydroxyapatite (HA), highly purified bovine and xenograft , but clinical evidence of their efficacy varies among clinical and experimental studies. Autograft (along with full cerclage wiring) was a better technique than poly methyla methacrylate (PMMA) for repair of bone defects in animals. A total of 16 rabbits were divided into two groups i.e. group I and group II, 12-14 weeks of average age having average body weight of 1.5 kg were selected randomly and maintained at Pet Centre, Department of Clinical Medicine and Surgery, UVAS, Lahore. Then, a defect were experimentally created having dimension 4.5 mm wide and 8 mm deep using a lateral surgical approach in left femur in all the animals of each experimental group. Post-operative evaluation was done on the basis of radiological findings, degree of lameness and histopathology findings for the comparison of autograft and synthetic bone graft. Summary 68 Conclusion It was concluded from the present study that autograft was superior to poly methyl methacrylate by radiological findings, degree of lameness and histopathological findings. Autografting was the gold standard for fracture healing to be biocompatible, osteogensis, osteinductive and osteoconductive. Availability: Items available for loan: UVAS Library [Call number: 2407-T] (1).

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