Novel implant design of the proximal interphalangeal joint using an optimized rolling contact joint mechanism.
Background: The aims of this study were to propose a novel implant design for the proximal interphalangeal joint (PIPJ) of the hand using a rolling contact joint (RCJ) mechanism and to derive an optimal implant design based on human PIPJ kinematics. Methods: In total, 10 participants with normal PIP...
| Publicado en: | Journal of Orthopaedic Surgery & Research Vol. 14; no. 1 |
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| Autores principales: | , , , |
| Formato: | diagnostic images equations & formulas pictorial research tables/charts Journal Article |
| Publicado: |
BioMed Central
7/12/2019
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=137452884&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 137452884 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 1749799X 38N9 jtl: Journal of Orthopaedic Surgery & Research issn: 1749799X maglogo: N pubinfo: dt: 7/12/2019 vid: 14 iid: 1 pid: 24147 pub: BioMed Central artinfo: ui: 137452884 137452884 137452884 10.1186/s13018-019-1234-6 137452884 ppct: 1 formats: tig: atl: Novel implant design of the proximal interphalangeal joint using an optimized rolling contact joint mechanism. aug: au: Hong, Seok Woo Yoon, Junsuk Kim, Yong-Jae Gong, Hyun Sik affil: Department of Orthopedic Surgery, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, 29, Saemunan-ro, Jongno-gu, 03181, Seoul, Republic of Korea sug: subj: Prosthesis Design Finger Joint Physiology Joint Prosthesis Kinematics Human Finger Joint Radiography Range of Motion Tendons Rotation ab: Background: The aims of this study were to propose a novel implant design for the proximal interphalangeal joint (PIPJ) of the hand using a rolling contact joint (RCJ) mechanism and to derive an optimal implant design based on human PIPJ kinematics. Methods: In total, 10 participants with normal PIPJs were enrolled in this study. True lateral finger radiographs were obtained in 10° increments from 0º (full extension) to 120° flexion of PIPJ. Radiographs were used to determine the average center of rotation, which formed the basis of a mathematical expression of the PIPJ kinematics. The variations in extensor tendon excursions in relation to the range of motion of PIPJ were determined using results from previous cadaveric studies. As the next step, a PIPJ implant design using an RCJ mechanism that was most consistent with the mathematically expressed PIPJ kinematics and tendon excursions was determined using a constrained optimization algorithm. Results: The final proposed PIPJ implant had a relatively constant center of rotation over the entire PIPJ range of motion among the participants. In addition, the extensor tendon excursions of the proposed implant as applied to the phalangeal bones were similar to those of the human tendon. The proposed PIPJ implant achieved an acceptable position of the RCJ surface on the proximal and middle phalanges, which was derived from the constrained optimization algorithm. Conclusions: A novel PIPJ implant design using an RCJ mechanism demonstrated acceptable outcomes in terms of PIPJ human kinematics and tendon excursions. pubtype: Academic Journal doctype: diagnostic images equations & formulas pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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