The aim of the study was to prospectively evaluate the results of endoscopic treatment of chronic plantar fasciitis with resection of the heel spur. Treatment was assessed based on the results of clinical examinations and functional assessment as well as X-ray examination.

Hypothesis: Conducting research on a group of patients will prove that the use of endoscopic technique with heel spur resection for the treatment of chronic plantar fasciitis will improve the functional results of the foot.

Methods: Patients diagnosed with chronic plantar fasciitis will undergo surgical treatment. An inspection is planned before and after 3, 6, 12, 24 and 60 months. During the check-up, the patient will undergo an X-ray examination, medical and physiotherapeutic assessment.

Study plan:

Participation in the research involves arriving at the Rehasport Clinic in Poznań on the dates set by the Chief Investigator (3, 6, 12, 24 and 60 months after the surgical treatment). During the visit, members of the research team ask participants to complete a set of questionnaires, perform a medical examination with a physiotherapeutic assessment described in detail below, and an X-ray examination. The entire examination will last approximately 3 hours.

1. During all visits to Rehasport Clinic, the participant will be asked to complete the surveys ACFAS ankle and foot assessment scale.

2. During the same visits, research team members perform the following tests and examinations:

   1. medical examination - aimed at assessing current ailments and range of motion,
   2. X-ray examination of the foot.

Inclusion Criteria:

• symptoms of chronic plantar fasciitis that have persisted for at least 6 months. despite previous conservative treatment, including corticosteroid injections, autologous PRP injections, physiotherapy, use of orthoses and NSAIDs,
• age ≥ 18 years,
• written consent to participate in the study

Exclusion Criteria:

• previous foot surgery,
• advanced diabetes impeding healing,
• significant obesity,
• contraindications to anesthesia