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              Research
              
              
                            
                            5. 
                            Radiological evaluation of the effects of varied 
                            doses of celecoxib on fracture healing in dogs - 
Aihanuwa Uwagie-Ero Edwin, Chukwujekwu Kene Rapheal
                            Vet World. 2011; 4(2): 75-76
              
 
              
              
              doi: 
              10.5455/vetworld.2011.75-76
              
              
               
              
              
              
   
 
              
               
               
               
              
              
              Abstract
              
                  
                            
                            To determine if Cyclooxygenase -2 (COX-2) functions 
                            in fracture healing, 10 dogs were treated with 
                            COX-2-selective nonsteroidal anti-inflammatory drugs 
                            (Celecoxib) to reduce and stop COX-2-dependent 
                            prostaglandin production. Radiographic testing 
                            evaluation determined that fracture healing was not 
                            affected in dogs treated with a low dose of 
                            COX-2-selective NSAIDs (celecoxib) and delayed union 
                            was observed in dogs treated with a high dose of 
                            COX-2-selective NSAIDs (celecoxib). Celecoxib dose 
                            of 5 mg/kg/day did not affect fracture callus formed 
                            in the study group and did not cause a significant 
                            increase in the proportion of delayed unions, 
                            however, at a dose of 10 mg/kg/day it reduced the 
                            rate of fracture callus formation and significantly 
                            increased the proportion of delayed unions for dogs 
                            in the group. 
              
                            
              Key words: Analgesia, Celecoxib, 
                            Cyclooxygenase, dog, Fracture healing.