肩関節における内圧的研究

抄録

Intra-articular pressure (1-A pressure) of the gleno-humeral joint (G-H Joint) was measured in order to elucidate the mechanism of shoulder joint. (Material and Method)
Ten normal subjects were measured. Fluidfilled teflon tube, with two small perforations around tip, was inserted into the axillary pouch from anterior aspect of the shoulder joint. The end of tube was connected to a pressure transducer. Intra-articular pressure was measured during movement of the shoulder joint when subjects were sitting position.
(Result) When none of saline was injected into the gleno-humeral joint, there was almost no change of intar-articular pressure. But, when 10 ml and 20 ml of saline were injected into G-H joint, I-A pressure rose at shoulder elevation. I-A pressure with 20 ml of saline was higher and rose more steeply at the same elevated position. It was demonstrated that 1-A pressure was highest at full elevation. The relationship of I-A pressure and joint position before and after full elevation demonstrated that the pressures were lower than for the same joint position before full elevation.
There were peak pressures at the full internal rotated position and the full externa l rotated position, but latter was higher than the former. The lowest value of I-A pressure was showed at the slightly flexed, abducted and internal rotated position.
And further measurements were done in the disease joints.