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Full-Text Articles in Veterinary Medicine
Evaluation Of Plasma Sprayed Hydroxyapatite Coated Ao Cortical Screws In Equine Third Metacarpal Bone, Myra Elizabeth Durham
Evaluation Of Plasma Sprayed Hydroxyapatite Coated Ao Cortical Screws In Equine Third Metacarpal Bone, Myra Elizabeth Durham
LSU Master's Theses
ABSTRACT Objectives - To compare the osteointegration of plasma sprayed hydroxyapatite (HA) coated and uncoated 5.5 mm cortical screws in equine third metacarpal (MC3) bones in combination with a 4.5mm broad dynamic compression plate (DCP). Study design - In vivo study. Animals – 6 Adult Thoroughbred horses. Methods – For each horse, four HA coated screws were placed unicortically through a 4.5mm broad DCP in the dorsal cortex of a randomly chosen MC3 bone, with 4 uncoated screws placed in an identical manner in the contralateral MC3 bone. All screws were tightened to a torque of 5.4 N-m. Extraction torques …
Applicability And Integration Of Plasma Sprayed Hydroxyapatite Coated Ao Cortical Bone Screws In Equine Bone, Timm Gudehus
Applicability And Integration Of Plasma Sprayed Hydroxyapatite Coated Ao Cortical Bone Screws In Equine Bone, Timm Gudehus
LSU Master's Theses
To compare insertion temperatures and torques of Hydroxyapatite (HA) coated and uncoated 5.5 mm AO cortical screws in equine third metatarsal bones (MTIII) in vitro, and to compare insertion and extraction torques of HA coated and uncoated screws after 4, 8, 12 and 16 weeks of healing in equine third metacarpal bones (MCIII) in vivo. No significant temperature differences were recorded in cadaveric bones for AO and HA coated screws. Insertion torques were significantly higher for HA coated implants compared to uncoated screws. In vivo, the AO screws lost 50% of their initial stability within 4 weeks of healing and …