Introduction
A Boxer’s fracture happens when the bone at the knuckle of the little finger breaks, typically caused by a forceful impact during fistfighting or hitting a hard object like a wall. This injury leads to swelling, pain, and stiffness. Treatment may involve realigning the bone and stabilizing it while it heals
Anatomy
The knuckle of the little finger, or pinky, is made up of the metacarpal bone's head and the proximal phalanx, the base of the finger. The little finger is crucial for providing a strong grip.
Causes
A Boxer’s fracture occurs when the neck of the metacarpal bone breaks, often due to punching an immovable object such as a wall or someone’s jaw. The force can cause various fracture patterns in the bone.
Symptoms
A Boxer’s fracture causes pain in the little finger and knuckle, which worsens with movement. Swelling, bruising, and deformity in the knuckle's appearance are common, making it look less prominent. Stiffness, limited movement, and an overlap of the little finger with the ring finger (malrotation) can occur. Grip strength may also be reduced.
Diagnosis
Doctors can diagnose a Boxer’s fracture through physical examination and x-rays, which reveal the fracture type and any dislocation. In rare cases, a CT scan may be used for more detailed imaging.
Treatment
Most Boxer’s fractures are treated with immobilization, using splints, a cast, or buddy-taping (taping the little finger to the ring finger) to support healing.
Surgery
Surgery may be necessary if there is significant angulation or displacement of the fracture, where the broken bone has shifted out of position. In these cases, an open reduction and internal fixation (ORIF) procedure is performed, using wires or screws to realign the bone.
Recovery
Rehabilitation with a hand therapist typically follows immobilization or surgery. It usually takes four to six weeks for the bone to heal, but regaining full motion and strength may take additional weeks. Heavy lifting, gripping, and contact sports should be avoided for about three months. Surgery generally results in a longer recovery time, but with proper treatment, most people experience good outcomes.
Prevention
To avoid Boxer’s fractures, it’s important to steer clear of situations that may cause them, such as bare fist fighting. Wearing gloves while boxing can protect your hands. If you tend to hit solid objects out of frustration, talking to a doctor about resources for positive coping strategies can help.
