The difficulty of severed finger tendon surgeries is that it is very accurate, and you need to return to the same position as before the injury, otherwise, the finger may become immobile.
Therefore, it must be performed by a surgeon who specializes in hand anatomy.
The best time to deal with a tendon injury is the first ten days after the injury, with some tests such as x-rays (to rule out fractures) and sometimes nerve conduction studies (to make sure there are no nerve injuries).
In old injuries, the connective membranes of the tendon are opened (tendon sheath) and the old adhesion is loosened, and a normal tendon is installed from the injured hand in place of the tendon that was injured and reconnected, to compensate for the shortness that occurs in old tendon injuries.
After this, the hand is placed in a movable splint, immobilized, and begins to receive physical therapy, according to the vision of the attending physician.
Some sports injuries cause a severing of the tendon, such as wrestling, karate and handball.
There are injuries to the tendon that occur with bone fractures or due to a blunt trauma. This applies to the connective tendons (flexor tendons).
There are some injuries that occur to the extensor tendons (extensors) in the fingers or in rheumatoid disease, where erosion occurs in the tendons and the tendon is cut with any movement, even simple.
And from preventive operations for rheumatoid patients, it is preferable to excise the lining of the extensor or connective tendons, or even excise the lining of the joints (synovium) in the early stages of the disease and irregularity until the injury occurs in the tendons.
The physiotherapy phase may start a week after surgery, unlike what happened previously, as this phase started 6 weeks after the operation, when the plaster cast is loosened and a plastic splint is made to help bend the finger that underwent the operation, and prevent the tendon from sticking.
After the partial movement stage, the finger and hand movement are strengthened by using equipment to strengthen muscles such as the use of a medical ball, after a week, ultrasound waves are used to break up any fibers around the tendon.