MANAGEMENT OF LONG BONE DIAPHYSEAL FRACTURES WITH MINIMALLY INVASIVE PLATE OSTEOSYNTHESIS TECHNIQUE USING LOCKING COMPRESSION PLATES IN DOGS

dc.contributor.advisorDHANA LAKSHMI, N(MAJOR)
dc.contributor.advisorVASANTH, M.S
dc.contributor.advisorSRILATHA, Ch.
dc.contributor.advisorRAJU, N.K.B
dc.contributor.authorRAVI, RAIDURG
dc.date.accessioned2018-11-30T09:53:13Z
dc.date.available2018-11-30T09:53:13Z
dc.date.issued2016-08
dc.descriptionTHESESen_US
dc.description.abstractABSTRACT: Twenty four dogs presented to the college hospital (SVVU/KVAFSU) with unstable long bone diaphyseal fractures which were diagnosed by clinical signs, orthopaedic examination and survey radiography were taken as clinical material for the study. The breed, age, sex wise incidence, etiology and type of fracture were studied. The dogs were equally divided into four groups viz; Group I (humerus), Group II (radius and ulna), Group III (femur) and Group IV (tibia and fibula) and the fractures were stabilized with minimally innasive plate osteosynthesis (MIPO) using locking compression plate following standard AO/ASIF procedures. Preoperative plan was prepared using Fracture Patient Assessment Score (FPAS) and following the AO/ASIF procedures. The minimally invasive surgical approach for long bones was successfully implemented in radial and tibial diaphyseal fractures. MIPO was not successful in humeral and femoral diaphyseal fractures and hence alternate Open reduction and internal fixation (ORIF) was used for fracture repair. The outcome of fracture stabilization and healing was evaluated with postoperative lameness grading, radiography, ultrasonography and biochemical analysis. All the animals showed grade V lameness i.e. no weight bearing on limb at rest or while walking before surgery. Animals in group II (Radius Ulna) & group IV (Tibia) which underwent MIPO exhibited early limb usage (grade II lameness by 7th day and grade I lameness by 45th day) as compared to group I (Humerus) and group III (Femur) in which MIPO was unsuccessful (grade III lameness by 28th day and grade II lameness by 60th day). Radiographic healing (grade 1) was noticed in all the cases treated by MIPO of group II (Radius Ulna) and IV (Tibia) with obliterated fracture line and homogenous bone structure (callus) within 7 weeks, where as, group I (Humerus) and group III (Femur) where MIPO was unsuccessful showed grade 2 radiographic healing with barely discernible fracture line and massive bone trabeculae crossing fracture line (callus) by 7th week indicating slower fracture repair than MIPO. Ultrasonographic healing (grade 4 – Increasingly homogeneous, hyperechoic image of the tissue at the fracture site (acoustic shadow returns) was noticed in all the cases treated by MIPO of group II (Radius Ulna) and IV (Tibia) ,where as, group I (Humerus) and group III (Femur) where MIPO was unsuccessful showed (grade 3 - Evidence of bridging of the fracture gap with inhomogeneous tissue (mix of hypoechoic and hyperechoic areas) by 5th week. Vascularization was not detectable by use of power Doppler ultrasonography by 9th week in all the group. No major intraoperative complications like implant instability or loosening of screws were seen in MIPO group (Radius Ulna and Tibia), however, Dog no 1(Radius Ulna) and Dog no 3 (Tibia) showed lateral angulation of distal limb. Statistical analysis revealed increase (P<0.05) in the serum alkaline phosphatase values significantly from 0 day to 7th day in all the groups and there after the levels decreased reaching normal at 45th day. Serum Calcium values were also increased significantly from 0 day to 14th day in all the groups. Serum phosphorus level showed significant difference on the day 0, 7, 14 and 28 days in all the groups. Based on present study, it was concluded that successful MIPO technique for long bone fracture repair can be done clinically for faster healing in radial and tibial fractures, whereas for Femoral and Humeral long bone fractures, it was difficult due to more instability and unsuccessful alignment due to strong musculature and bone configuration. As the MIPO technique has a “learning curve”, it can be successful once the surgeon gains dexterity in MIPO and can be attempted for complex fracture where alignment may be possible due to loss of bone.en_US
dc.identifier.urihttp://krishikosh.egranth.ac.in/handle/1/5810084893
dc.keywordsDOGS; OSTEOSYNTHESIS TECHNIQUE;MANAGEMENT;LONG BONE ;DIAPHYSEAL FRACTURES;MINIMALLY INVASIVE PLATE;LOCKING COMPRESSION PLATESen_US
dc.language.isoenen_US
dc.pages149en_US
dc.publisherSRI VENKATESWARA VETERINARY UNIVERSITY TIRUPATI - 517 502. (A.P.) INDIAen_US
dc.subVeterinary Surgery and Radiologyen_US
dc.subjectnullen_US
dc.themeMANAGEMENT OF LONG BONE DIAPHYSEAL FRACTURES WITH MINIMALLY INVASIVE PLATE OSTEOSYNTHESIS TECHNIQUE USING LOCKING COMPRESSION PLATES IN DOGSen_US
dc.these.typePh.Den_US
dc.titleMANAGEMENT OF LONG BONE DIAPHYSEAL FRACTURES WITH MINIMALLY INVASIVE PLATE OSTEOSYNTHESIS TECHNIQUE USING LOCKING COMPRESSION PLATES IN DOGSen_US
dc.typeThesisen_US
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