Why can’t I straighten my finger with a mortar and pestle? At the end of the finger, there is a tendon on the palmar side and a tendon on the dorsal side, which are responsible for the straightening and bending of the finger. When we play basketball, the finger accidentally pestle, causing damage to the tendon, resulting in our fingers can not straighten, if not timely treatment, may be transformed into old hammer finger, very difficult to treat! Finger like a hammer! After an injury to the finger occurs, the last section of the finger cannot be actively straightened, it can be passively straightened and the finger is bent down like a hammer head. Bending is not affected. The dorsal side of the last joint can be somewhat swollen. Pain is rarely felt and most of the time it is due to a combined fracture. How is it treated? The treatment of hammer finger is divided into two methods: conservative treatment and surgical treatment. 1, conservative treatment: The so-called conservative treatment is to choose a splint (i.e. brace) to fix the finger in a suitable position and maintain it for a certain period of time, so that the avulsed tendon or fracture fragment and the base of the finger bone can maintain contact and achieve a certain strength of healing to treat the hammer finger. It is most important to keep the distal interphalangeal joint in the hand area straight to help the tendon return to its normal state. The most basic treatment to begin is to maintain immobilization for 6 weeks. If, after 6 weeks of basic treatment, there is still no straightening, then it is necessary to continue wearing it for 2 more weeks and then check the results. If it is not good, it can be continued for another 2 weeks. 2.Surgical treatment: When the effect of conservative treatment is not good, or found late, such as a month after the tendon state has been set, you need to use surgical treatment! The following surgical methods are often used: (1) Resuture after excision of scarred tendon The old hammer finger severed end often has scar formation, and can be directly sutured after excision of scar, but the operation should accurately determine whether the distal end is tendon tissue, otherwise it will be broken again after repair and still behave as hammer finger deformity. (2) Overlapping tendon suture This method is a strengthening method in which the scarred tendon is cut and then overlapped and sutured. (3) Wire extraction suture The traditional method is to fix the distal interphalangeal joint through the kerf pins in a slightly hyperextended position, and after fixing the avulsed bone fragment or tendon severed end with a fine wire, the wire head is pulled out and fixed to the finger belly with a button. The features of this procedure are reliable fixation and low surgical cost, but intraoperative local button or liner compression may lead to necrosis, ulcer formation or scarring of the finger belly. Loose fixation due to slippage of the button or even too tight fixation can affect the blood supply to the end of the finger. For most patients, conservative treatment is preferred. Even if it is found late, usually within one month, a better result can be obtained with conservative treatment. Only for those patients with large fracture masses, semi-dislocated joints (unstable), and those who come to the clinic very late (more than 1 month) with no effect of regular conservative treatment, surgery is the treatment of choice.