This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Orthopaedics
[{'content': 'Most common cause of insertional tendonitis of tendoachilles is - \nSelect and explain. \nA. Overuse, B. Improper shoe wear, C. Runners and jumpers, D. Steroid injections', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Achilles tendon injury\n\nAchilles tendon is the thickest and strongest tendon in the body and is also the one of the most commonly injured tendon in the body.\nThe most common Achilles tendon injuries are :-\n\n\nAchilles tendinosis (formerly called Achilles tendonitis)\nAchilles tendon rupture\n\nAchilles tendinosis (Achilles tendonitis)\n\nAchilles tendonitis is a condition that develops over time and is associated with degeneration of the tendon and inflammation that causes pain.\nAchilles tendonitis is described as insertional or non-insertional:-\nInsertional achilles tendonitis :- Occurs where the achilles tendon interts into the calcaneum, i.e. at the tendon-bone interface.\nNon-insertional achilles tendonitis:- Occurs about one to two inches (2-5 cm) proximal to the site of insertion of the tendon.\nThe etiology of Achilles tendonitis is overuse.\n\n"Achilles tendonitis is a chronic problem; it occurs primarily from overuse".\xa0\xa0— Healthguide for sports\n"The etiology of Achilles tendonitis is overuse".\xa0\xa0— Essential sports medicine\n\nAchilles tendonitis occurs more commonly in Atheletes, joggers and hikers.', 'role': 'assistant'}]