What is the primary function of serial casting?

The primary function of serial casting is to reduce joint contracture. This technique involves applying a series of progressive casts to gradually stretch and lengthen the soft tissues surrounding a joint, thereby increasing the range of motion and reducing the severity of contractures. Contractures often occur due to conditions such as cerebral palsy, stroke, or prolonged immobility, where the soft tissues become tight, leading to a decreased ability to move the affected joint. Through serial casting, the apparatus provides a controlled amount of stretch over time, promoting tissue elongation and allowing for greater flexibility and movement as the casts are changed periodically.

Eliminating joint pain, while a potential secondary benefit of improving joint function, is not the primary aim of serial casting. Strengthening muscles around the joint is an important aspect of rehabilitation but is not the focus of serial casting itself; rather, strengthening exercises typically follow once range of motion is improved. Improving blood circulation, although beneficial in many therapeutic practices, is also not the main goal of serial casting, which instead concentrates on addressing the structural limitations imposed by contractures.