© Copyright 2026 American Medical Association. All rights reserved.
The CPT® Code 29020 refers to the application of a turnbuckle jacket, specifically designed for the body only. A turnbuckle jacket is a specialized type of body cast that is constructed by splitting the cast into two halves, which are then connected using metal turnbuckles. These turnbuckles are adjusted at intervals to apply tension, which helps in forcibly straightening the spine prior to surgical intervention. Although the use of turnbuckle jackets has diminished significantly in modern medical practice, they were a common treatment modality until the 1970s. The procedure begins with the application of a stockinette, which is a soft, tubular fabric that covers the torso and may extend over the neck and head as necessary. Following this, padding is placed over the stockinette to provide comfort and protection. A roll of plaster or fiberglass is then prepared by immersing it in water until fully saturated, after which excess water is gently squeezed out. This casting material is wrapped around the torso, neck, and head, ensuring that it is smoothed and molded into the desired shape as it is applied. Once the casting material has adequately set, the cast is carefully split into two halves, and the edges are trimmed for a proper fit. The turnbuckle device is then affixed to the cast and tightened at specific intervals to achieve the intended spinal alignment. It is important to note that for cases where the turnbuckle jacket extends up the neck and includes a portion of the head, CPT® Code 29025 should be utilized instead of 29020.
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