Efficacy of five cervical orthoses in restricting cervical motion. A comparison study

Area of Science:

• Orthopedic biomechanics
• Spinal injury management
• Medical device evaluation

Background:

• Five common rigid cervical orthoses represent 80% of devices in use.
• Evaluating the efficacy of these devices is crucial for patient care.
• Understanding comparative motion restriction is key.

Purpose of the Study:

• To compare the effectiveness of five cervical orthoses.
• To assess their ability to restrict cervical motion (flexion, extension, lateral tilt, rotation).
• To evaluate intervertebral motion restriction.

Main Methods:

• Twenty healthy volunteers (10 male, 10 female) participated.
• Active cervical motion was measured and compared to ranges with each orthosis.
• Radiographic and goniometric measurements were used to quantify motion.

Main Results:

• The NecLoc orthosis demonstrated statistically superior restriction in flexion, extension, rotation, and lateral tilt.
• The Miami J orthosis was the second most effective, outperforming Philadelphia and Aspen collars.
• All orthoses showed varying degrees of motion restriction.

Conclusions:

• The NecLoc cervical orthosis is the most effective among the evaluated devices for restricting cervical motion.
• The Miami J orthosis offers significant motion restriction, surpassing other tested collars.
• Findings aid in selecting appropriate cervical orthoses for clinical use.