Biomedical subjects

C Petau

Publications and source records attributed to C Petau.

2 recordsLinked to original sources

PubMed1995

Tissue tightness disposes to disc hernia.

It seems likely that the tightness of tissue influences a patient's disposition to disc hernia. The aim of this study was to compare the mechanical behaviour of tissue from disc hernia patients with that of controls. A computerized finger hyperextensometer was constructed, which allowed the measurement of the viscoelastic properties of the capsule and ligaments at the metacarpophalangeal (MCP) joint. The disc group showed a reduced maximal extension angle of MCP joint II (P < 0.01), reduced tissue recovery value (P < 0.05), reduced relative subsecant area (P < 0.01) and relative integral of the regression curve (P < 0.01). The results indicate that an anulus fibrosus with reduced extension properties, reduced capacity of energy absorption and retarded shape recovery disposes to rupture.

Adolescent↗

PubMedDate not supplied

[Prolapsed disk and constitutional disk flexibility].

The mechanical behaviour of anulus fibrosus is dependent on collagen fibers and influences the prolapse disposition. The aim of study was the comparison of constitutional mechanical tissue properties between a group of patients with disk herniation and normal. A computerized finger hyperextensiometer was developed which was able to analyse the viscoelastic tissue properties. In the disc herniation group the hyperextension angle of the metacarpophalangeal joint was smaller (p < 0.001), the relative integral area of the force/angle regression was larger (p < 0.001), the relative area under the secant of the curve (p < 0.01) and the recover value were smaller (p < 0.01). The results suggest that a anulus fibrosus with constitutional reduced extensibility, stress absorption capacity and recovery is disposed to herniation.

Adult↗