Physical and occupational therapy may be needed long term.Prosthetics may help some people with ABS to live more functional lives. The price and complexity of these prosthetics vary dramatically, but advances in 3-D printing have helped to increase the availability of artificial fingers while reducing their cost of production. Prognosis
The prognosis depends on the location and severity of the constricting bands. Every case is different and multiple bands may be entangled around the fetus. Bands which wrap around fingers and toes can result in syndactyly or amputations of the digits. In other instances, bands can wrap around limbs causing restriction of movement resulting in clubbed feet. In more severe cases, the bands can constrict the limb causing decreased blood supply and amputation. Amniotic bands can also sometimes attach to the face or neck causing deformities such as cleft lip and palate. If the bands become wrapped around the head or umbilical cord it can be life-threatening for the fetus. The number of cases of miscarriage that can be attributed to ABS is unknown, although it has been reported that it may be the cause of 178 in 10,000 miscarriages. Up to 50% of cases have other congenital anomalies including cleft lip, cleft palate, and clubfoot deformity. Hand and finger anomalies occur in up to 80%. Epidemiology
The reported incidence of constriction ring syndrome varies from 1/1200 and 1/15000 live births.
When the constriction cuts off the blood supply to the fingers, the fingers can form a peak with the most palmar digit being the index finger. Normal neurovascular bundles are not present in the distal parts. Hands with fused fingers need to be released in phases to preserve the distal blood supply. Paterson IVOne of the most severe consequence of constriction strains is probably intrauterine amputations, this is where the constriction goes as deep as the bone and cuts off the blood supply of the proximal extremity. The result will be that the developing toe or finger will become ischemic and fall off. Because the result is a transverse amputation that cuts off the vascular supply to the developing extremity, the actual constriction ring is not seen. This can result in different outcomes:

complete resorption; this is the most common form of amputation. In this form the amputated digit is completely resorbed during intrauterine development and therefore the amputated digit cant be found. recovery of the digit; the digit is recovered with the placenta during delivery. engraftment elsewhere; the amputated digit can be, in rare cases, engrafted somewhere on the fetus.Intrauterine deathIn extremely rare cases a strain can form around the umbilical cord and cut off the blood supply to the fetus which will result in intrauterine death.