Ultrasound-guided injection of the iliopsoas muscle with botulinum toxin in camptocormia

Background: Camptocormia is characterized by an abnormal posture of the trunk with pronounced flexion of the thoraco-lumbar spine, which increases during walking and abates in the recumbent position, consistent with a primary action dystonia of the spine. Therapeutic efforts to alleviate this debilitating, mostly Parkinson's disease (PD)-associated symptom, have been mostly futile. Injection of botulinum toxin A (BtA) into the rectus abdominis muscle has been beneficial only in a small subgroup of patients with palpable dystonic contractions of the abdominal wall. Methods: As a novel therapeutic approach, we tre…