Catalogo Articoli (Spogli Riviste)


Water jet cutting of bone and bone cement. A study of the possibilities and limitations of a new technique
Honl, M; Rentzsch, R; Lampe, F; Muller, V; Dierk, O; Hille, E; Louis, H; Morlock, M;
Allgemeines Krankenhaus Barmbek, Orthopad Klin, D-22291 Hamburg, Germany Allgemeines Krankenhaus Barmbek Hamburg Germany D-22291 Hamburg, Germany Tech Univ Hamburg Harburg, Arbeitsbereich Biomech, D-2100 Hamburg, GermanyTech Univ Hamburg Harburg Hamburg Germany D-2100 D-2100 Hamburg, Germany Tech Univ Hannover, Inst Werkstoffkunde, Jet Cutting Sect, Hannover, Germany Tech Univ Hannover Hannover Germany Jet Cutting Sect, Hannover, Germany
Titolo Testata:
fascicolo: 9, volume: 45, anno: 2000,
pagine: 222 - 227
water jet; jet cutting; prosthesis; revision; bone cement; bone;
Tipo documento:
Settore Disciplinare:
Clinical Medicine
Indirizzi per estratti:
Indirizzo: Honl, M Allgemeines Krankenhaus Barmbek, Orthopad Klin, Rubenkamp 148, D-22291 Hamburg, Germany Allgemeines Krankenhaus Barmbek Rubenkamp 148 Hamburg Germany D-22291
M. Honl et al., "Water jet cutting of bone and bone cement. A study of the possibilities and limitations of a new technique", BIOMED TECH, 45(9), 2000, pp. 222-227


Water jet techniques have been used in industrial cutting, drilling and cleaning applications for more than 30 years. Plain water is typically used for the cutting of non-metallic materials. The addition of abrasive substances to the stream allows almost any material to be cut. The first medical applications were reported in the early 1980s, when the water jet was used tocut organs. The present study investigates the use of water jet cutting technology for endoprosthesis revision surgery. Bone and Ph PMMA (polymethylmethacrylate) samples were cut at different pressures using an industrial water jet cutting device. Using plain water at 400 bar, PMMA was cut selectively without damaging the bone; above 400 bar, bone was also cut, but the cutting depths in PMMA were significantly greater (p < 0.05). Adding a water soluble abrasive disaccharide to the water results in a significantly higher removal rate for bothmaterials (p < 0.05), but selectivity is lost, although the differences incutting depth between the two materials was significant (p < 0.05). With an abrasive, the quality of the cut was better far both materials. The waterjet technology - in particular the abrasive technique - can be used to cutbiomaterials such as bone and bone cement. The diameter of the jet is a great advantage when working in the confined area at the prosthesis interface. The cutting process is essentially cold, thus eliminating a thermal effect, and the jet reaction forces are relatively low. Accurate manipulation ofthe hydro jet nozzle is possible both manually and by robot. The results obtained show that it is possible to remove prostheses with this cutting technique, rapidly and with little damage to the surrounding tissue. Problem areas are the development of sterile pumps and the ,,depth control" of the jet.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 21/10/20 alle ore 15:48:18