... interpretation of data, drafting the manuscript and acquisition of funding.AO contributes to the analysis and interpretation of data,drafting the manuscript and acquisition of funding.All authors ... surface of cartilage. In particular, they are Dilinoleoyl-phosphatidylcholine (DLPC), Palmitoyl-linoleoyl-phosphatidylcholine, (PLPC), Palmitoyl-oleoyl-phosphatidylcholine (POPC) and Stearoyl-linoleoyl-phosphatidylcholine ... phospholipid (SAPL), orsurfactant, lines the surface of cartilage and serves as a lubricating agent. Previous clinical studyshowed that a saturated phosphatidylcholine (SPC), dipalmitoyl-phosphatidylcholine...