Although its a major injury, tho I don't know the extent of the injury (is it a major fracture or what) , what I can say is dont' loose hope! You're still young and in time it will heal. Thigh bone injuries are common with bowlers and usually they recover fast, but you have to be patient.
For your solace, a new zealand player called Tim Lythe had his ENTIRE left thigh bone REPLACED with a titanium rod but he returned to his first class career!!
Have hope, will bowl! 
