DeRoyal Prolign & Prolign EXT Spinal Orthoses — Powered by the Boa Fit System
The DeRoyal Prolign and Prolign EXT Spinal Orthoses with Boa Fit System are designed for lower lumbar strains and sprains, proprioceptive feedback, postural control, and reinforcement of correct body ergonomics. Featuring a patented dual Boa closure for secure, micro-adjustable fit and soft breathable material, the Prolign is available in three versions: Prolign 15°, Prolign EXT 15°, and Prolign EXT 25°.
Key Features of the DeRoyal Prolign Spinal Orthosis
- Boa Fit System — patented dual closure — secure, micro-adjustable fit at the turn of a dial; no re-donning required
- Soft breathable material — comfortable for all-day wear
- Three versions — Prolign 15°, Prolign EXT 15°, Prolign EXT 25°
- Proprioceptive feedback — reinforces correct body ergonomics and spinal alignment
- Posterior insert angles — 15° or 25° for clinician-prescribed lordosis control
- FSA/HSA eligible
- HCPCS code: L0637
Prolign vs. Prolign EXT — Which Version Do You Need?
| Version | Insert | Typical Use |
|---|---|---|
| Prolign 15° | 15° posterior | Lumbar strains/sprains, postural support, proprioceptive feedback, ergonomic reinforcement |
| Prolign EXT 15° | 15° posterior | Extended coverage for taller patients or conditions requiring greater lumbar span |
| Prolign EXT 25° | 25° posterior | DDD, post-operative lumbar fusion, conditions requiring aggressive spinal extension support |
Always follow your physician’s or orthotist’s prescription when selecting the version and insert angle.
Size Chart — DeRoyal Prolign & Prolign EXT
| Size | Prolign 15° | Prolign EXT 15° | Prolign EXT 25° |
|---|---|---|---|
| X-Small | 13502004 | 158-01 | 157-01 |
| Small | 13502005 | 158-02 | 157-02 |
| Medium | 13502006 | 158-03 | 157-03 |
| Large | 13502007 | 158-04 | 157-04 |
| X-Large | 13502008 | 158-05 | 157-05 |
| XX-Large | 13502009 | 158-06 | 157-06 |
Clinical Indications — Who Needs the Prolign?
- Lower lumbar strains and sprains
- Proprioceptive feedback and postural control
- Reinforcement of correct body ergonomics
- Chronic low back pain
- Degenerative disc disease (DDD)
- Post-operative lumbar support
Frequently Asked Questions — DeRoyal Prolign Spinal Orthosis
What is the difference between the Prolign 15° and Prolign EXT 25°?
The Prolign 15° provides moderate lordosis correction for lumbar strains, postural support, and proprioceptive feedback. The Prolign EXT 25° promotes greater lumbar extension and is typically prescribed for degenerative disc disease, post-operative lumbar fusion, or conditions requiring more aggressive spinal extension support. The EXT versions also offer extended coverage for taller patients. Always follow your physician’s or orthotist’s prescription.
What is the Boa Fit System and how does it work on a back brace?
The Boa Fit System is a patented dial-based closure that allows you to micro-adjust compression with precision — tightening or loosening the brace without removing it. For lumbar orthoses, this is clinically significant because swelling, activity level, and comfort needs change throughout the day. The Boa system eliminates the need to re-don the brace for adjustments, improving compliance and therapeutic outcomes.
What is proprioceptive feedback and why does it matter for low back pain?
Proprioception is your body’s ability to sense its own position and movement. In patients with low back pain, proprioceptive deficits — reduced awareness of spinal position — can contribute to poor posture, muscle imbalance, and re-injury. A lumbar orthosis like the Prolign provides tactile and mechanical feedback that helps retrain the body to maintain proper spinal alignment during daily activities.
Can I wear the Prolign after lumbar surgery?
Yes. The Prolign EXT 25° is commonly prescribed for post-operative lumbar support following spinal fusion or decompression procedures. Your spine surgeon will specify the appropriate version, wear schedule, and activity restrictions. Never modify your brace use without surgical clearance.
Is the DeRoyal Prolign FSA or HSA eligible?
Yes. The DeRoyal Prolign is a medical device and is generally FSA (Flexible Spending Account) and HSA (Health Savings Account) eligible. HCPCS code L0637 may apply — verify coverage with your insurance provider. OrthoTape does not bill insurance directly.
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Authorized DeRoyal dealer. FSA/HSA eligible. HCPCS L0637 may apply. All products are new and ship from our US warehouse. This product is intended for use under the guidance of a licensed healthcare professional. OrthoTape does not provide medical advice. Questions? Call: 800-580-9887 (M–F 9:30–5:00 EST)




