The Gotfried Percutaneous Compression Plate versus the Dynamic Hip Screw in the treatment of pertrochanteric hip fractures: minimal invasive treatment reduces operative time and postoperative pain. - Janzing,H.M.; Houben,B.J.; Brandt,S.E.; Chhoeum,V.; Lefever,S.; Broos,P.; Reynders,P.; Vanderschot,P. (J Trauma, 2002)