In this way, a low-friction articulation with excellent stability and a range of motion from 0 120 degrees is achieved.
Articular cartilage is a complex connective tissue covering the surfaces of bones in synovial joints [1] that enables low-friction articulation and helps transmit and distribute forces to the subchondral bone [2].
An intact labrum causes more equal fluid distribution during weight bearing, resulting in less cartilage deformation, low-friction articulation, and less stress across the hip joint (Ferguson et al. 2000, 2003).
Permanent articular cartilage persists at the ends of the long bones at the point where it caps the epiphyses to reduce friction at joint articulations.
Restraint during simulation is the sum of replicated passive structures, friction of the articulation, and restraint via implant design.
The coefficient of friction (COF) of a hydrogel ceramic articulation was measured at varying loads and pressures to explore the full range of lubrication behavior of hydrogel.
Osteoarthritis (OA) is associated with increased articular cartilage hydraulic permeability and decreased maintenance of high interstitial fluid load support (IFLS) during articulation, resulting in increased friction on the cartilage solid matrix.
In the 1970s, due to the success of Charnley's low friction arthroplasty [ 6], metal-on-polyethylene articulations were increasingly applied.
Mastication and speech are only possible if the articulation (relative motion) between various oral surfaces is not hampered by excessive friction, as in the case of xerostomic patients suffering from reduced salivary excretion.
Ceramic-on-ceramic articulation, introduced by Boutin in France in 1970 (Sedel 2000), provides low friction and wear, a high Young's modulus, high resistance to compression, extreme hardness, and biocompatibility; moreover, it has been shown to be non-deformable under shock, heat, or pressure (Sedel 1997).
These bearing designs also generate less friction on movement which can lower the volume of wear debris as compared to polyethylene type articulations, potentially reducing local inflammation and osteolysis [ 6].
