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Volar Plate Injury
The volar plate is a very thick ligament which joins two bones in the finger. A volar plate injury occurs when the finger is bent back the wrong way too far spraining or tearing the ligament.
Symptoms of a volar plate injury
Symptoms occur immediately the finger is bent backwards and include severe pain in the injured finger which is located specifically over the middle finger joint. Swelling will develop quickly and the finger may appear deformed. Trying to move the finger will be painful and bruising may appear especially on the palm side of the middle finger joint.
Volar plate injury explained
Volar plate injury most frequently occurs due to a hyperextension force - where the finger is overstraightened and bent backwards the wrong way. It is sometimes known as a jammed finger. The most common cause of this injury is ball sports where the ball forces the fingers backwards.
Volar plate is a ligament which separates the joint space of the proximal interphalangeal joint (also called PIP joints which join finger bones nearest the hands together) and the flexor tendons (which attach muscle to bone). The injury can just be to the ligament, or can be an avulsion fracture where the ligament pulls off a small piece of bone at its attachment. This may also involve damage to the collateral ligament, known as a finger sprain.
Treatment of a volar plate injury
An X-ray should be sought to determine if there has been an avulsion fracture, or whether the damage is purely soft tissue related.
If the injury is just to the ligament then it should be immobilized in a finger splint for up to a week to allow healing to occur. Then gentle range of motion exercises can begin to prevent stiffening. Finger buddy taping should still be used in between exercises until pain free to aid healing and protect the finger.
If a fracture is present, it may require surgical fixation with wires or pins before immobilization.