Aetiology
Lacerations of the extensor muscles, fascia, or tendons of the thumb at the wrist or hand level can be caused by a variety of mechanisms, including deep lacerations, contusions, blunt force trauma, or lacerations by sharp objects.
Diagnosis
Diagnosis of lacerations of the extensor muscles, fascia, or tendons of the thumb at the wrist or hand level typically requires an imaging study such as an X-ray, ultrasound, or MRI to confirm the diagnosis and assess the extent of injury.
Differential diagnosis
Differential diagnosis includes tendonitis, muscle strains, fractures, and other soft tissue injuries.
Treatment
Treatment of lacerations of the extensor muscles, fascia, or tendons of the thumb at the wrist or hand level typically involves suturing of the wound, immobilization of the joint, and physical therapy to restore range of motion and strength. In cases of severe injury, surgery may be required.
Prognosis
The prognosis for lacerations of the extensor muscles, fascia, or tendons of the thumb at the wrist or hand level is generally good, with full recovery possible in most cases. The prognosis may be worse if the injury is severe or if the patient does not receive proper treatment.