Sources checked October 24, 2026. This descriptive guide does not diagnose foot pain, recommend a treatment or provide a medical review.
Where does arthritis occur in the foot?
The American Academy of Orthopaedic Surgeons distinguishes osteoarthritis, rheumatoid arthritis and posttraumatic arthritis in the foot and ankle[1].
The first metatarsophalangeal joint, abbreviated first MTP joint, is at the base of the big toe[2]. Hallux rigidus describes stiffness in this joint; it is not a name for every painful part of the foot[2].
The Menz foot atlas separately assesses the first MTP joint, first and second cuneometatarsal joints, navicular-first cuneiform joint and talonavicular joint[3].
What symptoms can appear with foot arthritis?
AAOS lists pain with movement, tenderness, swelling and stiffness among the features considered in foot-and-ankle arthritis[1]. Its hallux-rigidus description specifically includes restricted big-toe bending and pain around that joint during walking[2].
AAOS describes assessment through history, examination and, where appropriate, imaging or laboratory tests, not one symptom alone[1].
Does early-stage foot arthritis have a single X-ray grade?
Ask which grading system and joint the report means. The 2007 Menz atlas assesses osteophytes, or bone spurs, and joint-space narrowing on weightbearing foot radiographs[3]. Its original reliability study had two examiners score 50 radiographs twice; that was an assessment study, not a treatment trial[3].
In the Clinical Assessment Study of the Foot, researchers scored those features from 0 to 3 and defined radiographic osteoarthritis as a score of at least 2 for either feature[4]. That study threshold should not be read as a timeline from the first day of pain.
The atlas paper reported stronger agreement within an examiner than between examiners[3]. This is a reason to name the measurement method when discussing a stage, not to interpret an image without its clinical report.
What happens during an assessment for foot arthritis?
AAOS describes questions about pain location, timing, previous injury and whether one or both feet are involved[1]. The examination includes joint tenderness, swelling and walking pattern[1].
Weightbearing X-rays are images taken while standing; AAOS describes looking for joint-space narrowing, bone changes and spurs[1]. For hallux rigidus, the examination focuses on big-toe movement, pain and possible bony overgrowth[2].
Bring the wording of any existing report to the appointment. Useful questions are: Which joint is involved? What arthritis type is being considered? What does the grade measure? Which findings remain unexplained? These questions organize a discussion rather than select a treatment.
What did the foot osteoarthritis population study measure?
Roddy and colleagues mailed surveys to 9,334 adults aged 50 or older in four UK general practices during 2010 and 2011[4]. They received 5,109 responses, obtained radiographs from 557 people and analyzed 525 eligible clinic attendees with complete data after exclusions[4].
Their adjusted population estimate for symptomatic radiographic foot osteoarthritis was 16.7 percent, with a 95 percent confidence interval of 15.3 to 18.0 percent[4]. The definition required imaging changes plus pain in the corresponding region of the same foot during the previous four weeks[4].
This was a cross-sectional baseline analysis, not a progression or treatment experiment[4]. Nonresponse, the older UK population and assessment of only five joints limit generalization[4]. This is not an estimate of early arthritis in all adults.
Where can I compare PRP clinic listings?
Regenerated.com's September 2026 export contained 2,082 records listing PRP Therapy among 9,042 published US clinic records, across 48 states plus Washington, DC. Source: the Regenerated.com clinic export collected September 2026. This is directory coverage, not market size or a count of clinics confirmed to treat foot arthritis.
If you are already comparing this service with a clinician, browse PRP Therapy clinic listings. Local directory routes include PRP Therapy clinics in Santa Barbara, California and PRP Therapy clinics in Toluca Lake, California.
This navigation is not a recommendation to use PRP for foot arthritis. Confirm the specific joint, diagnosis and service directly with the provider. A listing is not an endorsement or confirmation of foot-specific expertise. For broader terminology, see the osteoarthritis guide.