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Biomedical subjects

T S Hou

Publications and source records attributed to T S Hou.

5 recordsLinked to original sources
PubMed1991

Lumbar intervertebral disc prosthesis. An experimental study.

To provide a more effective treatment and improve the outcome of surgical treatment of lumbar intervertebral disc protrusion, the values of lumbar intervertebral disc prosthesis (LIDP) were investigated. LIDP was specially designed and made of silicone rubber. The properties of material mechanics were investigated by compressive test and damage test of LIDP specimens. The biocompatibilities of LIDP were observed experimentally in monkeys. The surgical applicabilities were studied by in vitro experiments of fresh human lumbar spine. The results showed that LIDP has the advantages of good biomechanical applicability, biocompatibility and surgical applicability. LIDP is able to maintain the intervertebral space, stress balance and stability of the lumbar spine. after lumbar intervertebral disc excision, the replacement of LIDP could restore the functions of the lumbar spine and improve the curative results of disc excision.

Adult↗
PubMed1990

Effect of partial discectomy on the stability of the lumbar spine. A study of kinematics.

The effect on the stability of the lumbar motion segment, as affected by partial discectomy, was investigated using three-dimensional motion measurement technique. Eight functional spinal units from fresh cadaver lumbar spines were potted and clinically relevant loads applied through a special loading frame attached rigidly to the top vertebra of the specimen. Partial discectomy was performed on the right side of the specimen. The three-dimensional motions of each lumbar motion segment, before and after partial discectomy, were recorded. The results showed that partial discectomy significantly affects the stability of lumbar spinal motion segments. The clinical relevance of this finding is discussed.

Adult↗
PubMed1989

[Kinematic effects of discectomy on the lumbar spine: an experimental study].

By way of 3-dimensional measurement, the kinematics of the lumbar spine after discectomy were studied on 8 specimens of functional spinal units from cadavers. Each specimen was subjected to discectomy performed as on living body, the specimen was then, with proper load, fixed on a frame specially made for passive motion, imitating that of a person. Records of the 3-dimensional motions, before and after discectomy, were compared carefully. The data demonstrated that discectomy of lumbar spine did bring about definite ill-effect on kinematics of the spine, initiating immobility.

Adult↗