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Hi, I am an American Board Certified Neurologist and I am very glad to help you with your health concerns.
On an average one requires about 12 weeks (3 months) for recovery after repair of a muscle tendon. In some patients the recovery may take bit longer but in general majority of the patients recover within about 3 months after the repair surgery. You need to be evaluated by rehab/physical therapy service as soon as possible and they will decide when to initiate the therapies. The customized therapies are introduced gradually and then optimized depending upon the response and tolerance to the therapies.
Once again to your main question, it takes on average around 3 months for full recovery after surgery for a ruptured tendons like biceps tendon.
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