AR-Ex 整形外科グループ（尾山台整形外科 ほか）
Setagaya-ku (Oyamadai, main), Tokyo
Eight sports-orthopaedic clinics in Tokyo, Saitama and Nagano offering cultured adipose-derived stem cells and PRP for joints, with interpreter support for overseas patients.
What each treatment is and how it is given. Whether it suits you is decided by the clinic’s physician after reviewing your records.
| Treatment | What it is | Type | Learn more |
|---|---|---|---|
| Adipose-derived stem cell (ASC) joint injection | Stem cells cultured from the patient's fat over about eight weeks are injected into the affected joint to reduce inflammation and support repair; banking plans freeze a second dose for use after six months. | Stem cell & regenerative therapy | Ask your coordinator |
| PRP therapy | Platelet-rich plasma from the patient's blood injected into joints or soft-tissue injuries. | Stem cell & regenerative therapy | Ask your coordinator |
Many treatments listed here are self-pay (not covered by Japanese public insurance) and some are not approved as standard treatment in Japan. Regenerative and cell therapies are provided under registered plans based on the Act on the Safety of Regenerative Medicine.
Costs depend on your case and differ for international patients. Your coordinator explains the clinic's fees, interpreter and coordination costs before you decide.
AR-Ex runs eight sports orthopaedic clinics across Tokyo, Saitama and Nagano and performs more than 1,000 operations a year, with surgery centered at AR-Ex Oyamadai. Its regenerative program cultures stem cells from the patient's fat for about eight weeks and injects them into the joint under arthroscopic guidance, with follow-up at 3 and 6 months. The group has a dedicated page for overseas patients and arranges interpreters.
Accepts international patients. Interpreters arranged on booking; English questionnaires and consent forms; accepts travellers without insurance and medical tourists. Contact before visiting.
Languages: English, Chinese, Korean, Vietnamese
Send us your diagnosis and treatment history. A case coordinator will check whether this clinic fits your case, request a medical review, and explain costs and next steps before you travel.
Independent information. JapanMedAssist is not affiliated with AR-Ex Sports Orthopaedic Group unless stated.
Share your diagnosis, reports and imaging through our secure form. We translate them into Japanese.
We check which clinics fit your case and ask the clinic’s physician to review it before you travel.
We schedule appointments, arrange a medical interpreter and explain all costs before you decide.
Yes. Interpreters arranged on booking; English questionnaires and consent forms; accepts travellers without insurance and medical tourists. Contact before visiting. JapanMedAssist can coordinate records translation, interpretation and scheduling.
Send your diagnosis and recent medical records through our consultation form, WhatsApp or Messenger. A coordinator checks whether this clinic fits your case, arranges a medical review, and explains costs and next steps before you travel.
Costs depend on your case and differ for international patients. Your coordinator explains the clinic's fees, interpreter and coordination costs before you decide. Many treatments are self-pay and not covered by Japanese public insurance.
Usually a referral letter or summary from your current doctor, recent pathology and imaging reports, and a list of treatments so far. We help you collect and translate them.
Setagaya-ku (Oyamadai, main), Tokyo.
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Summarized from the clinic’s public website on 2026-09-28. Report an error