Clin Pain.  2020 Dec;19(2):70-79. 10.35827/cp.2020.19.2.70.

Immobilization Effect and Abdominal Pressure of Newly-Developed Lumbosacral Spinal Orthosis during Task Performance

• Jeon KS
• Yang HS
• Jang SW
• Shin HD
• Lee Yk
• Lee Y
• Lee SBN
• Ahn DY
• Sim WS
• Cho M
• Cho KJ
• Park DB
• Park KS

• KMID: 2510177
• DOI: http://doi.org/10.35827/cp.2020.19.2.70

Abstract

Objective
We evaluated the efficacy of a newly-developed spinal orthoses (V-LSO) by comparing the stabilizing effect, abdominal pressure, and comfort of 3 different semirigid LSOs (classic LSO, V-LSO, and Cybertech^Ⓡ ) during various body movements.
Methods
Thirty healthy volunteers (23∼47 years, 24 males, 6 females) were selected. A dual inclinometer measured the range of motion (ROM) while the participants performed flexion/extension and lateral flexion of the lumbar spine with 3 LSOs. The LSO’s pressure on the abdominal surface was measured using 9 pressure sensors while lying, sitting, standing, flexion/extension, lateral flexion, axial rotation, and lifting a box. Comfort and subjective immobilization were analyzed by a questionnaire.
Results
V-LSO had a statistically significant effect on flexion over Cybertech^Ⓡ . No significant differences were noted during extension and lateral flexion between the 3 LSOs. The abdominal pressure showed no significant differences while supine. While sitting, standing, and lifting a box, the mean abdominal pressure for V-LSO were significantly higher than those for Cybertech ^Ⓡ . During lumbar flexion, the mean abdominal pressures for classic LSO and V-LSO were significantly higher than that of Cybertech^Ⓡ . For extension, lateral flexion and axial rotation, the abdominal pressure for V-LSO was significantly higher than those of classic LSO and Cybertech^Ⓡ . In the subjective analysis, V-LSO and Cybertech^Ⓡ scored best for comfort.
Conclusion
The V-LSO and Cybertech^Ⓡ were more comfortable than the classic LSO, and hence, may have improved compliance with decreased discomfort. V-LSO may be superior to the other LSOs in restricting lumbar movement and increasing intraabdominal pressure.

Keyword

Orthotic devices; Pressure; Range of motion; Surveys and questionnaires