TY - JOUR
T1 - A comparative mechanical analysis of plate fixation in a proximal phalangeal fracture model
AU - Lins, R. E.
AU - Myers, B. S.
AU - Spinner, R. J.
AU - Levin, L. S.
N1 - Funding Information:
The INKP-100 Study Group: Charles Barish, MD, Wake Research Associates, Raleigh, NC; Gerald Bertiger, MD, Hillmont GI, PC, Flourtown, PA; Harry Burack, MD, Digestive Disorders Center, St. Peters, MO; Robert Cano, MD, Associates in Research, Inc., Fresno CA; Richard Chasen, MD, Maryland Digestive Disease Center, Laurel, MD; Cuckoo Choudhary, MD, Thomas Jefferson University, Philadelphia, PA; Joseph Cochran, MD, Radiant Research, Inc., Birmingham, AL; Dale Collins, MD, Rocky Mountain GI Associates, Denver, CO; Douglas Dean Dalke, MD, Gastroenterology Specialists, PC, Lincoln, NE; Ben J. Dolin, MD, Health Advance Institute, Peoria, IL; Steven L. Duckor, MD, Associated Gastroenterology Medical Group, Orange, CA; Michael Fedotin, MD, Research Medical Center, Kansas City, MO; K. Ganeshappa, MD, Digestive Diseases Center of South Texas, San Antonio, TX; Andrew Gottesman, MD, Radiant Research, Inc., Dallas, TX; Mazen Jamal, MD, University of New Mexico, Albuquerque, NM; David Kastenberg, MD, Thomas Jefferson University, Philadelphia, PA; David Limauro, MD, Pittsburgh Gastroenterology, Pittsburgh, PA; David Mangels, MD, TQM Research Center, Cincinnati, OH; Oscar Martinez, MD, Health Core, Inc., Newark, DE; Perry Milman, MD, Long Island Jewish Medical Center, New Hyde Park, NY; Robert Morton, MD, Gastroenterology Center of Northern Virginia, Arlington, VA; William Putnam, MD, Seattle Gastroenterology Associates, Seattle, WA; Dennis S. Riff, MD, Associated Gastroenterology Medical Group, Anaheim, CA; Michael Schiff, MD, GI Associates of St. Augustine, St. Augustine, FL; David Silvers, MD, Drug Research Services, Metarie, LA; Stephen Steinberg, MD, University of Colorado, Denver, CO; James Thornton, MD, Main Line GI, Wynnewood, PA; John C. Turse, MD, Health Advance Institute, Melbourne, FL; Gregg Valenzuela, MD, Medical Specialties Inc., Richmond, VA; Stephen Verbeck, MD, Radiant Research, Inc., Mogadore, OH; Donald Walters, DO, Keystone Digestive Disorders, Pittsburgh, PA; Eric G. Weiss, MD, Cleveland Clinic Florida, Ft. Lauderdale, FL; Barry Winston, MD, Houston Medical Research Associates, Houston, TX; Lawrence Wruble, MD, Mid South Clinical Research Institute, Memphis, TN; Gregory Zuccaro, MD, Cleveland Clinic Foundation, Cleveland, OH.
PY - 1996
Y1 - 1996
N2 - A biomechanical study compared the mechanical properties of hand and craniofacial plating systems commonly used in proximal phalangeal fractures. Two plates of each of the various systems were mounted dorsally on a yellow- birch-dowel model of a proximal phalanx after a transverse cut was made in the middle of the section of the dowel, modeling a midshaft transverse osteotomy or fracture. Torsional rigidity, as well as four-point bending rigidity in apex dorsal, lateral, and volar directions, was achieved. Failure testing in apex palmar four-point bending was then examined. Between plating systems, torsion varied 1,600% and results of apex palmar testing varied 1,500%. Apex palmar moment-to-failure testing varied 1,000% and represented a 3.5%-38% range of intact proximal phalangeal strength. This also represented 12%-128% of the maximum calculated in vivo bending moments of the proximal phalanx. The wide variation in plate strengths and stiffness raises questions as to the suitability of certain plating systems with regard to early mobilization. Moreover, some plating systems tested were mechanically weaker than the reported strengths of certain Kirschner wire fixation techniques.
AB - A biomechanical study compared the mechanical properties of hand and craniofacial plating systems commonly used in proximal phalangeal fractures. Two plates of each of the various systems were mounted dorsally on a yellow- birch-dowel model of a proximal phalanx after a transverse cut was made in the middle of the section of the dowel, modeling a midshaft transverse osteotomy or fracture. Torsional rigidity, as well as four-point bending rigidity in apex dorsal, lateral, and volar directions, was achieved. Failure testing in apex palmar four-point bending was then examined. Between plating systems, torsion varied 1,600% and results of apex palmar testing varied 1,500%. Apex palmar moment-to-failure testing varied 1,000% and represented a 3.5%-38% range of intact proximal phalangeal strength. This also represented 12%-128% of the maximum calculated in vivo bending moments of the proximal phalanx. The wide variation in plate strengths and stiffness raises questions as to the suitability of certain plating systems with regard to early mobilization. Moreover, some plating systems tested were mechanically weaker than the reported strengths of certain Kirschner wire fixation techniques.
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U2 - 10.1016/S0363-5023(96)80316-9
DO - 10.1016/S0363-5023(96)80316-9
M3 - Article
C2 - 8969432
AN - SCOPUS:0030463985
SN - 0266-7681
VL - 21
SP - 1059
EP - 1064
JO - Journal of Hand Surgery
JF - Journal of Hand Surgery
IS - 6
ER -