What does mallet finger mean?
Mallet finger describes a typical deformity of an individual finger, where the end joint stays permanently bent downwards while the middle and base joints are usually straight. The shape looks like a small hammer pointing downwards, which is where the name comes from.
How does mallet finger develop?
Mallet finger often develops after an injury or strain to the tendons that straighten the last section of the finger. This is most commonly caused by what is known as a "extensor tendon rupture" at the finger. This can happen during sport, for example, when a ball or another object strikes the fingertip with force. However, wear and tear, rheumatic conditions, or changes caused by arthritis can also lead to this deformity.
In everyday life, it becomes noticeable that the affected finger joint can no longer be actively straightened. It stays permanently bent. Straightening it is then only possible with the help of the other hand. In contrast, the other joints of the finger usually continue to work normally.
Is mallet finger dangerous?
Many people wonder whether mallet finger is serious or has long-term consequences. The deformity itself is not life-threatening, but it can significantly affect how the finger works. Everyday tasks such as writing, doing up buttons, or picking up small objects can become difficult. If mallet finger is left untreated, the deformity can become permanent and lead to further problems or pain.
Uncertainty often arises about whether an operation is needed or whether the finger will heal fully. Many people also worry about lasting limitations. The good news is that in many cases mallet finger can be treated successfully, especially when action is taken early.
Treatment options for mallet finger
How the condition is treated depends on how badly the tendon is injured and how long the mallet finger has been present. For recent injuries, a special finger splint is usually used to hold the end joint in a straightened position for several weeks. This allows the tendon to heal back together and the finger to regain its movement. It is important that the splint is worn consistently so that the joint does not bend again.
If the deformity has been present for a longer time or the tendon is badly damaged, a small surgical procedure may be needed. During this, the tendon is stitched or the joint is stabilised. After surgery, there is usually a period during which the finger is kept still so that everything can heal properly.
Sometimes a slight limitation in movement remains even after treatment. In most cases, however, the function of the finger improves significantly when therapy begins early and is carried out consistently.
What to do if you suspect mallet finger?
If you notice that the end joint of a finger suddenly hangs downwards and can no longer be actively straightened, you should arrange a medical examination as soon as possible. The sooner the cause is identified and treatment begins, the better the chances of a full recovery.
In everyday life, it helps to protect the affected finger from further strain and not to try to force it straight. This can make the injury worse.
Common questions about mallet finger
Many people are unsure whether the finger will work completely normally again. Particularly with recent injuries, the chances are very good that full movement will return. It is important to wear the splint continuously and to follow the instructions of the treating medical professional.
Surgery is rarely necessary, usually only when conservative treatment with the splint is not enough or the injury is very severe. Pain often only occurs at the beginning and eases as treatment progresses.
An untreated mallet finger can lead to permanent limitations in movement and, in the worst case, to a lasting deformity of the entire finger. It is therefore worth acting early and not putting off treatment.
In summary
Mallet finger is a clearly recognisable deformity of the finger that usually develops after a tendon injury. With the right treatment, most commonly a finger splint, the outlook for recovery is very good. Those who act quickly and follow through with therapy consistently can, in most cases, use their finger without restriction again.
