Polypropylene multifilament warp knitted mesh and its use in surgery

A warp knitted surgical mesh fabricated from polypropylene multifilament yarn, the polypropylene being an isotactic polypropylene resin having a melt flow index, g/10 min, of from about 2 to about 6, the yarn possessing a denier of at least about 10 and being constructed with from about 10 to about 60 filaments each having a denier of from about 0.5 to about 6, the mesh possessing from about 20 to about 80 courses per inch and from about 12 to about 40 wales per inch, the yarn being produced by the process which comprises melt spinning the polypropylene employing an extruder equipped with a spinneret and downstream of the extruder a draw frame possessing three pairs of godets, the extruder being operated in one or more zones thereof at a temperature of from about 230.degree. to about 270.degree. C., the pressure of the extruder being from about 1000 to about 2000 psi, the temperature of the spinneret being from about 220.degree. to about 250.degree. C., the first pair of godets being operated at a temperature of from about 50.degree. to about 90.degree. C. and an mpm of from about 100 to about 300, the second godet being operated at a temperature of from about 70.degree. to about 130.degree. C. and an mpm of from about 300 to about 1000 and the third godet being operated at ambient temperature and an mpm of from about 250 to about 1000, the draw ratio of the yarn being from about 2 to about 4 and the shrinkage of the yarn being from about 5 to about 15 percent.