Kinematik des Metakarpophalangeal-Gelenks nach Implantation der Oberflächenersatzprothese.

Translated title of the contribution: The Arthur Vick Award: kinematics of the metacarpophalangeal joint after surface replacement arthroplasty

H. C. Fayaz, R. D. Beckenbaugh, K. N. An, J. J. Klawitter, J. Jerosch, S. Rehart, W. P. Cooney

Research output: Chapter in Book/Report/Conference proceedingChapter

3 Citations (Scopus)

Abstract

AIM: Prosthetic replacement in the hand must address such unique challenges as preservation of the collateral ligaments, tendon balancing,and Stability. Surface replacement arthroplasty can be an alternative to other current implants. The purpose of this study was to evaluate the metacarpophalangeal joint kinematics after surface replacement arthroplasty. METHOD: The kinematics of pyrolytic carbon as a surface replacement implant for the metacarpophalangeal joint (MCP) was compared with the intact MCP joint in eight fresh cadaver long fingers by means of an electromagnetic tracking system (Polhemus, Colchester, VT). The eight human cadaver MCP joints were tested before implantation, after implantation, after collateral ligaments resection, and after collateral ligaments reconstruction. RESULTS: The kinematics of the MCP joint is reproduced by the joint surface replacement arthroplasty when normal ligament tension was present. The maximum angular displacement of the pyrocarbon implant was 378 for lateral deviation and 338 for rotation during the passive flexion and extension motion. The instantaneus center of rotation (ICR) after implant insertion was nearly identical to the center of rotation of the normal joint. The results also indicated that the collateral ligaments provide the primary stability of the MCP joint. No significant differences in lateral and rotational stability after surface replacement arthroplasty were noted. While collateral ligaments resection significantly affected the stability of the MCP joint. CONCLUSION: The ICR of the pyrocarbon implant most closely matched that of the intact MCP joint. The pyrocarbon implant provides suitable stability to radio-ulnar deviation and rotational stresses as a resurfacing implant and it simulates the kinematics of the intact MCP joint. By using new materials and taking the anatomical and biomechanical requirements into consideration, the endoprosthesis of the finger joints has created an option to achieve good long-term results. The inadequate results of earlier and current prostheses are a consequence of their mechanical construction and their materials. The success of the new implants could be proven by preferably long-term, controlled studies.

Original languageGerman
Title of host publicationZeitschrift für Orthopädie und Unfallchirurgie
Pages199-206
Number of pages8
Volume145
Edition2
StatePublished - Mar 2007

Fingerprint

Replacement Arthroplasties
Metacarpophalangeal Joint
Biomechanical Phenomena
Collateral Ligaments
Joints
Cadaver
Finger Joint
Electromagnetic Phenomena
Radio
Ligaments
Tendons
Fingers
Prostheses and Implants
Hand

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Fayaz, H. C., Beckenbaugh, R. D., An, K. N., Klawitter, J. J., Jerosch, J., Rehart, S., & Cooney, W. P. (2007). Kinematik des Metakarpophalangeal-Gelenks nach Implantation der Oberflächenersatzprothese. In Zeitschrift für Orthopädie und Unfallchirurgie (2 ed., Vol. 145, pp. 199-206)

Kinematik des Metakarpophalangeal-Gelenks nach Implantation der Oberflächenersatzprothese. / Fayaz, H. C.; Beckenbaugh, R. D.; An, K. N.; Klawitter, J. J.; Jerosch, J.; Rehart, S.; Cooney, W. P.

Zeitschrift für Orthopädie und Unfallchirurgie. Vol. 145 2. ed. 2007. p. 199-206.

Research output: Chapter in Book/Report/Conference proceedingChapter

Fayaz, HC, Beckenbaugh, RD, An, KN, Klawitter, JJ, Jerosch, J, Rehart, S & Cooney, WP 2007, Kinematik des Metakarpophalangeal-Gelenks nach Implantation der Oberflächenersatzprothese. in Zeitschrift für Orthopädie und Unfallchirurgie. 2 edn, vol. 145, pp. 199-206.
Fayaz HC, Beckenbaugh RD, An KN, Klawitter JJ, Jerosch J, Rehart S et al. Kinematik des Metakarpophalangeal-Gelenks nach Implantation der Oberflächenersatzprothese. In Zeitschrift für Orthopädie und Unfallchirurgie. 2 ed. Vol. 145. 2007. p. 199-206
Fayaz, H. C. ; Beckenbaugh, R. D. ; An, K. N. ; Klawitter, J. J. ; Jerosch, J. ; Rehart, S. ; Cooney, W. P. / Kinematik des Metakarpophalangeal-Gelenks nach Implantation der Oberflächenersatzprothese. Zeitschrift für Orthopädie und Unfallchirurgie. Vol. 145 2. ed. 2007. pp. 199-206
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abstract = "AIM: Prosthetic replacement in the hand must address such unique challenges as preservation of the collateral ligaments, tendon balancing,and Stability. Surface replacement arthroplasty can be an alternative to other current implants. The purpose of this study was to evaluate the metacarpophalangeal joint kinematics after surface replacement arthroplasty. METHOD: The kinematics of pyrolytic carbon as a surface replacement implant for the metacarpophalangeal joint (MCP) was compared with the intact MCP joint in eight fresh cadaver long fingers by means of an electromagnetic tracking system (Polhemus, Colchester, VT). The eight human cadaver MCP joints were tested before implantation, after implantation, after collateral ligaments resection, and after collateral ligaments reconstruction. RESULTS: The kinematics of the MCP joint is reproduced by the joint surface replacement arthroplasty when normal ligament tension was present. The maximum angular displacement of the pyrocarbon implant was 378 for lateral deviation and 338 for rotation during the passive flexion and extension motion. The instantaneus center of rotation (ICR) after implant insertion was nearly identical to the center of rotation of the normal joint. The results also indicated that the collateral ligaments provide the primary stability of the MCP joint. No significant differences in lateral and rotational stability after surface replacement arthroplasty were noted. While collateral ligaments resection significantly affected the stability of the MCP joint. CONCLUSION: The ICR of the pyrocarbon implant most closely matched that of the intact MCP joint. The pyrocarbon implant provides suitable stability to radio-ulnar deviation and rotational stresses as a resurfacing implant and it simulates the kinematics of the intact MCP joint. By using new materials and taking the anatomical and biomechanical requirements into consideration, the endoprosthesis of the finger joints has created an option to achieve good long-term results. The inadequate results of earlier and current prostheses are a consequence of their mechanical construction and their materials. The success of the new implants could be proven by preferably long-term, controlled studies.",
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AU - Jerosch, J.

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N2 - AIM: Prosthetic replacement in the hand must address such unique challenges as preservation of the collateral ligaments, tendon balancing,and Stability. Surface replacement arthroplasty can be an alternative to other current implants. The purpose of this study was to evaluate the metacarpophalangeal joint kinematics after surface replacement arthroplasty. METHOD: The kinematics of pyrolytic carbon as a surface replacement implant for the metacarpophalangeal joint (MCP) was compared with the intact MCP joint in eight fresh cadaver long fingers by means of an electromagnetic tracking system (Polhemus, Colchester, VT). The eight human cadaver MCP joints were tested before implantation, after implantation, after collateral ligaments resection, and after collateral ligaments reconstruction. RESULTS: The kinematics of the MCP joint is reproduced by the joint surface replacement arthroplasty when normal ligament tension was present. The maximum angular displacement of the pyrocarbon implant was 378 for lateral deviation and 338 for rotation during the passive flexion and extension motion. The instantaneus center of rotation (ICR) after implant insertion was nearly identical to the center of rotation of the normal joint. The results also indicated that the collateral ligaments provide the primary stability of the MCP joint. No significant differences in lateral and rotational stability after surface replacement arthroplasty were noted. While collateral ligaments resection significantly affected the stability of the MCP joint. CONCLUSION: The ICR of the pyrocarbon implant most closely matched that of the intact MCP joint. The pyrocarbon implant provides suitable stability to radio-ulnar deviation and rotational stresses as a resurfacing implant and it simulates the kinematics of the intact MCP joint. By using new materials and taking the anatomical and biomechanical requirements into consideration, the endoprosthesis of the finger joints has created an option to achieve good long-term results. The inadequate results of earlier and current prostheses are a consequence of their mechanical construction and their materials. The success of the new implants could be proven by preferably long-term, controlled studies.

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