Comparison of Standing Versus Supine Alignment Capture Methods for Monolimb Fabrication
By Vecciotti, R.G.; Allyn, K.J.; Buell, N.C.; Hafner, B.J.; Reisinger, K.D.; Weber, E.L.; Smith, D.G.; 11th World Congress of the International Society for Prosthetics & Orthotics, August 1-6, 2004, Hong Kong,Publication Date: August 1-6, 2004
Study compared two methods of alignment capture for the fabrication of transtibial monolimbs. Initial alignment capture attempts were performed in the supine position; after refinement, both a standing and a supine system evolved to incorporate an alternate alignment theory basing the alignment of the monolimb on the location of the three lower-limb joint centers. Each system guides the technician to locate the hip and knee centers as two points in space which define a mechanical axis. A sound limb-length measurement and selection of prosthetic foot positions the ankle center on this axis and captures the prosthetic alignment. Eight unilateral transtibial amputees were fit with 2 monolimbs fabricated from the 2 systems. The alignments of these monolimbs were compared to each other and to the participants’ personal prostheses. At the trial conclusion, participants, who were not told which limb matched which system, were asked to indicate their preferred monolimb and method of alignment capture. Preliminary data showed that both alignment methods may provide equally suitable prostheses; ultimately, the comfort, simplicity and portability afforded by the supine-alignment method were considered promising not only for developing countries but also for any situation where an amputee’s mobility or strength is compromised.
Published by: Center for International Rehabilitation (Website:http://www.cirnetwork.org/)
Link to text: http://www.conventionyes.org/cir/uploads/File/RERC/ISPO_2004_Alignment_Systems.pdf
