Tokyo Yotsu Clinic, operated by medical corporation Zen'ikai and located in Tokyo's Ginza 5-chome district, is an orthopedic clinic specializing in spinal disorders. The group to which the clinic belongs has accumulated 28,847 spinal surgeries over 19 years, covering herniated discs, spinal stenosis, and vertebral compression fractures—this extensive experience forms the foundation of their practice. A distinguishing feature is the self-funded consultation system, where an initial visit includes a comprehensive "Spinal Dock" screening that completes various diagnostic tests in a single day, shortening the time from examination to surgery to approximately one to three weeks. The clinic adopts PELD (Percutaneous Endoscopic Lumbar Discectomy), a world-leading surgical technique that uses a very small incision and minimizes removal of muscle, ligament, and bone, significantly reducing physical burden and enabling an early return to daily life. With comprehensive capabilities across multiple surgical approaches including endoscopic surgery, laser treatment, and spinal fusion, spine specialists carefully explain and propose treatments tailored to each patient's individual symptoms. The clinic also pursues regenerative medicine as a new non-surgical option, with specialists carefully evaluating the suitability of treatments that promote tissue repair and regeneration. The clinic treats a wide range of spinal-related symptoms including lower back pain, sciatica, limb numbness, and neck pain, and supports credit card and electronic payments with barrier-free accessibility.