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A male patient presented with sudden severe pain of the left biceps when he was on the commode and tried to shut a door with his left arm. A hematoma was noticed afterward. The patient had experienced similar symptoms in different arms and leg muscles over the previous two years. He has a history of ankylosing spondylitis and Addison disease. He is on prednisone 15 mg daily and recently repeated courses of Ciprofloxacin for a urinary tract infection. MRI scan revealed attenuated and ruptured bicep tendons. The patient had a normal SR, ANA, and no family history.
The followings are risk factors for recurrent tendons rupture, except:
1. Chronic steroid therapy
2. Inflammatory arthritides
5. Repeated trauma to the joints
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The Correct Answer is 3: Lisinopril.
Rupture of tendons spontaneously or with minimal trauma is rare and is multifactorial. Most of the time no cause is recovered and it may have a genetic predisposition.
Risk factors include:
• Chronic medical conditions: CRF, DM, hyperparathyroidism
• Systemic steroids
• Aromatase inhibitors: anastrazole (estrogen positive breast cancer)
Genetic predisposition and collagen disorders, such as collagen VI and Lamin A/C mutations are rare but important causes. In these cases, some degree of muscle weakness, contractures, joint hyperextensibility and increased skin elasticity would be expected.