The replacement tendon is connected towards the bones through holes that are drilled in the humerus and ulna. The tendon is threaded through the holes and held in place with sutures or screws. The replacement tendon usually arises from the hamstring, the forearm, and the foot (huge toe extensor tendon). https://tedomarket.com/product/fitness-2/posture-trainer/posture-corrector/toe-posture-corrector/big-toe-bunion-device-foot-pain-relief-hallux-valgus-night-foot-care-splint-straightener-toe-separator-corrector-thumb-orthotics/