The present study has been designed as an intervention comparative study to evaluate the effect of platelet rich fibrin in bone union and its clinical outcome when given at site of fracture during internal fixation in trochanteric fractures. Patients with trochanteric fractures of femur are invited to participate in this study. If they are fulfilling the inclusion criteria they will undergo a standardized history and physical examination by clinicians.All the eligible patients will be divided in two groups after randomisation and allocation with the help of computer and sequential sealed envelope method. After randomisation two groups(Group N and Group PRF) will be created. If they are in the PRF group then they will receive PRF injection along with standard treatment. Written informed consent will be taken from all patients partcipating in the study and additional consent for PRF injection will be taken from patients in  Group PRF. During the surgery, 20 ml of blood will be taken from patient which might cause some discomfort due to needle prick and which will be used to make platelet rich fibrin using a centrifuge, This PRF will be injected to fracture site.  Patient will be assessed postoperatively clinically using Visual analogue scale and Harris Hip Score and radiologically using RUSH Score. If you are willing to participate in the study then you have to undergo a follow up of atleast 6 months which include 4 visits. At  each follow up you will be assessed clinically and radiologically.X rays will be done at 2 weeks, 6 weeks, 3 months, and if necessary at 6months