Can my pony still jump?

i have had my 13.2hh welsh cross arab pony for nearly 3 years & she is round about 15-19 years old.and the 1st year i didnt jump her because we had no access to jump and the second year i got her jumping for maybe the 1st time in her life as her old owner didnt like jumping.she learned to jump with me and one day we went down to her to give her her feed and groom her and she had fell and hurt her leg.we had the vet out and after 5 long months she is finally better again.she gallops across fields and doesnt want to stop and doesnt act old at all and her leg hasnt let her downn either so do you think she can still jump and how will i learn her to jump again instead of takin months like last time as there is a show coming up in 2 months and as she is stunning we are going to enter with our friend on her horse.so what do you guys think?? :)