Autologous Conditioned Plasma (ACP) for Patients With Plantar Fasciitis

Inclusion Criteria: * Painful inner heel pain for longer than three months * at least six weeks since last corticosteroid injection * four weeks since the last anaesthetic injection, iontophoresis, ultrasound and electromyostimulation * one week since the last NSAIDs taken * two days since the last analgesic, heat, ice, message, stretching, or modification of night splints and orthosis. * scores greater or equal to 5 on the VAS PFPD scale * scores greater or equal 30 on the AOFAS scale * scores of greater or equal to 5 on the VAS PFPD scale and 30 on the AOFAS scale Exclusion Criteria: * tendon rupture * neurological or vascular insufficiencies in the painful heel * bilateral heel pain * Paget's disease or calcaneal fat pad atrophy * osteomyelitis, fracture of the calcaneus, ankle inflammation * recent infection in the treatment area, history of rheumatic diseases * collagenosis or metabolic disorders * immunosuppressive therapy or coagulation disturbance and/or therapy, long-term treatment with corticosteroids * previous heel surgery * malignant disease, diabetes mellitus, severe cardiac or respiratory disease, significant abnormalities in hepatic function * participation in another clinical study at the same time.