TLSO
Pronunciation: tee-el-es-oh
Also written as: TLSO — Thoracolumbosacral Orthosis
Abbreviation for thoracolumbosacral orthosis, a rigid or semi-rigid spinal orthosis extending from the thoracic to the sacral region.
Full Definition
A thoracolumbosacral orthosis (TLSO) is an external device encompassing the thoracic, lumbar, and sacral spine, used to manage conditions such as scoliosis, spinal fractures, or post-operative stabilisation. In orthotic documentation, the acronym TLSO must always be preceded by its full form at first use. Editors should note that the TLSO differs from a CTLSO (cervicothoracolumbosacral orthosis), which additionally includes the cervical spine. Common named TLSOs encountered in clinical literature include the Boston brace, the Rigo Chêneau brace, and the Milwaukee brace (the latter technically a CTLSO).
Usage
Usage note: Always expand on first use. Do not confuse with LSO (lumbosacral orthosis), which does not extend into the thoracic region. Named braces (e.g., Boston brace) may be used colloquially but should be identified as a TLSO subtype in formal writing.
In Context
- "The adolescent was prescribed a thoracolumbosacral orthosis (TLSO) to halt the progression of her 38-degree scoliotic curve." — Pediatric orthopaedic report
- "Confirm that TLSO is expanded to 'thoracolumbosacral orthosis' at first mention in accordance with journal style." — Copy-editing checklist