LUBRICATION OF SYNOVIAL MEMBRANE
LUBRICATION OF SYNOVIAL MEMBRANE
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DOI:
10.1136/ard.30.3.322
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发表时间:
1971-01-01
影响因子:
27.4
通讯作者:
SCHOTTSTAEDT, ES
中科院分区:
文献类型:
--
作者:
RADIN, EL;PAUL, IL;SCHOTTSTAEDT, ES
Joint stiffness is a significant clinical manifestation of patients with arthritic disease. The articulating surface area of most joints is to a great extent synovial tissue. Cartilage-on-cartilage friction is extremely low and most of the resistance to joint motion is from the capsule, ligaments, tendons, and skin which'ricde'over the joint on synovium (Smith, 1956; Johns and Wright, 1962; Barnett and Cobbold, 1969). Although analyses have been made of the types and amounts of stiffness encountered with arthritis and age (Barnett and Cobbold, 1968; Wright, Dowson, and Longfield, 1969), there have been no studies of the lubrication mechanisms actually involved in synovium on synovium or synovium on cartilage motion. Such studies might also be of great value in explaining the possible role of lubricant viscosity in joint function. Synovial fluid is characteristically viscous, but since this viscosity is not the prin, ary determining factor in cartilage-on-cartilage lubrication (McCutchen, 1962; Linn, 1968), it has been suggested that lubricant viscosity might well be playing a significant role in synovial tissue slipperi-ness (McCutchen, 1969). For these reasons an investigation of synovial membrane lubrication was undertaken and is reported here.Methed Synovial tissue was obtained from the knee joints of healthy cows, aged 3 to 4 years. The knees were first inspected to insure freedom from arthritic change. Square pieces of synovium, about 3 x 3 cm., with their attached capsule, were cut, washed in isotonic buffer, placed synovial side down on a motor-driven polished glass slider, and attached to a force transducer (Statham Instruments, Inc., Los Angeles, California) by a thin silk thread (Figure). Cartilage rubbing on glass has frictional