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Fracture Bracing
TLSO
An in-depth, evidence-based explanation of the thoracolumbosacral orthosis (TLSO) — a rigid back brace used to support certain fractures of the mid and lower spine while they heal.
A thoracolumbosacral orthosis, or TLSO, is a rigid brace that wraps around the trunk to support the thoracic and lumbar spine — the region where the mid-back meets the lower back. It is one of the mainstays of non-operative treatment for many spinal fractures, particularly at the thoracolumbar junction, where a large proportion of injuries occur. The brace limits bending and twisting, helping to keep the spine in a good position and control pain while the fracture heals. This page explains what a TLSO is, when it can be used, and — importantly — what the evidence says about how much bracing actually adds.
For information only — not medical advice. The content on this page is patient education to help you understand a condition or treatment. It is not a substitute for personalised assessment by a qualified clinician. Always consult your doctor or specialist about your own symptoms, diagnosis, and treatment decisions.
What a TLSO is
A TLSO is a custom-fitted or off-the-shelf rigid shell, usually made of moulded plastic, that encloses the trunk from around the chest to the pelvis. By restricting forward bending, side bending and rotation, it reduces movement across the injured segment. The aim is to hold the spine in a stable, well-aligned position, to limit loading of the fractured vertebra, and to ease pain during the early weeks of healing. A TLSO is typically fitted and adjusted with the help of an orthotist, and is usually worn when upright over a period of several weeks.
When it can be used
Bracing with a TLSO is generally considered for stable thoracolumbar fractures — most commonly compression fractures and certain burst fractures — in people who are neurologically intact and whose spine is judged mechanically stable. The decision rests on the fracture pattern, the degree of any deformity, the integrity of the ligaments at the back of the spine, and the person's bone quality and general health. Where a fracture is unstable, badly deformed, or compressing the nerves, surgery may be recommended instead of, or in addition to, bracing. The choice is made individually.
What the evidence shows
Interestingly, the evidence on bracing has evolved. For stable thoracolumbar burst fractures in neurologically intact patients, several randomised trials and meta-analyses have found that treatment without a brace can give results equivalent to treatment with one, with similar pain, function and alignment at follow-up — while avoiding the burden of wearing a rigid orthosis. This does not mean bracing has no role; it means that for a defined group of stable fractures, early mobilisation without a brace is a legitimate, evidence-supported option. For other fracture patterns, a TLSO remains a useful tool. The honest position is that bracing is helpful in selected cases rather than universally necessary, and the decision should be tailored.
What to expect
Where a TLSO is used, it is generally worn when standing or walking for a period of several weeks, with regular review and imaging to check that the fracture is holding its position. Attention is paid to skin care and comfort under the brace, and to gradually rebuilding activity and strength as healing progresses. Whether a brace is needed at all, and for how long, depends on the specific fracture and the individual — which is exactly why these decisions are made together with the treating team.
Disclaimer. The information provided on this page is intended for educational purposes only and should not be considered personalised medical advice. Every patient is different, and treatment options, risks, expected recovery and outcomes depend upon an individual's diagnosis, injury pattern, bone health, general health and personal circumstances. Decisions regarding treatment should always be made following consultation with your treating spinal surgeon or healthcare professional.
Evidence & further reading
- —Bailey CS, et al. Orthosis versus no orthosis for thoracolumbar burst fractures without neurologic injury: a multicentre RCT. Spine J 2014. (PMID 24184649)
- —Urquhart JC, et al. Thoracolumbar burst fractures: extended follow-up of an RCT comparing orthosis versus no orthosis. J Neurosurg Spine 2017. (PMID 28409669)
- —Linhares D, et al. Orthosis in thoracolumbar fractures: a systematic review and meta-analysis of RCTs. Spine 2020. (PMID 32858744)
- —Wallace N, et al. Effects of bracing on outcomes following thoracolumbar burst fractures in neurologically intact patients: a meta-analysis of RCTs. JBJS Rev 2019. (PMID 31567716)
- —Alcalá-Cerra G, et al. Orthosis for thoracolumbar burst fractures without neurologic deficit: a systematic review of prospective RCTs. J Craniovertebr Junction Spine 2014. (PMID 25013344)
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