Tendoscopy in Stage I Posterior Tibial Tendon Dysfunction

Stage I posterior tibial tendon dysfunction (PTTD) is defined as tenosynovitis or tendinitis whereby tendon length remains normal, there is no hindfoot deformity, and diagnosis is basically clinical, characterized by swelling and tenderness posterior to the medial malleolus. This condition is often misdiagnosed as ankle sprain, which delays correct diagnosis and early treatment that may improve symptoms, stop the disease process, and prevent the development of adult acquired flatfoot deformity. Posterior tibial tendoscopic synovectomy is a minimally invasive and effective surgical procedure to treat patients with stage I PTTD.