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Tendinopathy carries a large burden of musculoskeletal disorders seen in both athletes and aging population. Treatment is often challenging, and progression to chronic tendinopathy is common. Physical therapy, nonsteroidal anti-inflammatory drugs, and corticosteroid injections have been the mainstay of treatment but are not optimal given that most tendon disorders seem to involve degenerative changes in addition to inflammation. The field of regenerative medicine has taken the forefront, and various treatments have been developed and explored including prolotherapy, platelet rich plasma, stem cells, and percutaneous ultrasonic tenotomy. However, high-quality research with standardized protocols and consistent controls for proper evaluation of treatment efficacy is currently needed. This will make it possible to provide recommendations on appropriate treatment options for tendinopathy.

After reading this article, the participant should be able to: 1. Make decisions on flexor tendon repair based on current evidence. 2. Perform some important tendon transfers after viewing Dr. Kozin's videos. 3. Inject local anesthesia for wide-awake flexor tendon repair after viewing the appropriate videos in the article. 4. Use relative motion extension splints for the postoperative management of extensor tendon injuries.This article provides a practical, clinically useful overview of some of the current best techniques and evidence available to the plastic surgeon in the treatment of flexor and extensor tendon injuries, tendon transfers, trigger fingers, mallet fingers, boutonniere deformities, and De Quervain tenosynovitis. Twelve short movies and drawings emphasize important points of diagnosis and treatment of tendon disorders.

Purpose of reviewAchilles tendon disorders are a common clinical entity presenting to the orthopedic surgeon and may present a challenge to treatment. This review will focus on identifying the etiology of Achilles tendon disorders, present the associated physiological and biological processe