Both Front Legs Retained.
The lamb is in anterior presentation, in a dorso-sacral position, with an abnormal posture. Both forelimbs are retained at the shoulder, making the diameter of the pectoral girdle too large to permit delivery. At least one limb has to be retrieved and extended to allow delivery. If the lamb is dead, the head may be removed to create more space to maneuver.
Smith MC (2006)