the study will include 100 patients diagnosed as degenerative plantar fasciitis and will be evaluated by musculoskeletal ultrasound by two observes and the will divided randomly into two groups who will be injected under ultrasound imaging by either Platelet rich plasma or methylprednisolone. selection of patient will be randomly and the study will be double blinded.
a number of patient diagnosed as degenerative plantar fasciitis will be collected and divided into two groups, group I will be injected by platelet rich plasma and group II will be injected methylprednisolone