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Biomedical subjects

E F Simmons

Publications and source records attributed to E F Simmons.

2 recordsLinked to original sources

Review of cervical orthoses.

Six commonly prescribed cervical orthoses are presented for a qualitative review of their structural properties and their clinical applicability. A quantitative review of each brace has previously been reported. The characteristics of 1) structure, 2) ease of donning, 3) ease of adjusting, 4) comfort, and 5) general clinical applicability are summarized for each brace. Generally, as the orthosis becomes more restrictive, it also becomes more cumbersome and more difficult to don. Ease of adjustment and comfort are compromised. The one exception was the Somi orthosis which was comfortable, easy to don and adjust, and which still provided good stability in forward flexion. The information presented in this paper in conjunction with information on the quantitative qualities of each brace and the services available at most health care facilities may be used as a guide for selecting specific cervical orthoses.

Braces↗

Cervical orthoses. A study comparing their effectiveness in restricting cervical motion in normal subjects.

The effectiveness of five cervical orthoses in restricting cervical motion was evaluated quantitatively in normal subjects using roentgenograms and overhead photographs made at the extremes of three planes of motion, while the effectiveness of the halo with a plastic body-vest was studied in seven patients with cervical fractures or local fusions. Flexion and extension were measured at each cervical intervertebral joint and combined cervical motion was measured for rotation and lateral bending. The best conventional braces restricted only 45 per cent of flexion-extension at the atlanto-axial joint; the halo restricted 75 per cent. The conventional braces were more effective in the middle and lower portions of the cervical spine. The results may prove to be useful guidelines for the selection of an appropriate orthosis to control motion in different planes and at different levels of the spine.

Adult↗