Newly designed retentive posts of mandibular reconstruction plate in oral cancer patients based on preliminary FEM study
Identifieur interne : 000665 ( Main/Exploration ); précédent : 000664; suivant : 000666Newly designed retentive posts of mandibular reconstruction plate in oral cancer patients based on preliminary FEM study
Auteurs : Ik Jae Kwon [Corée du Sud] ; Mi Young Eo [Corée du Sud] ; Sung Jae Park [Corée du Sud] ; Soung Min Kim [Corée du Sud] ; Jong Ho Lee [Corée du Sud]Source :
- World Journal of Surgical Oncology [ 1477-7819 ] ; 2016.
Abstract
The reconstruction of a large mandibular defect poses a challenging issue in oral cancer ablation surgery. One popular option for mandibular continuity reconstruction after tumor resection involves the use of a reconstruction plate (R-plate), which maintains space and contour without bone harvesting. An R-plate, however, cannot provide final functional loading rehabilitation with implants or dentures.
We suggest a new method of functional mandibular reconstruction using retentive posts and an upper prosthesis. The finite element method (FEM) was used to optimize the design. Surgery was needed to adapt the retentive posts. Prosthodontic procedures were required for the upper prosthesis.
Eight patients were treated with retentive posts and prostheses. All patients underwent wide resections of the mandible, and reconstruction with an R-plate and microvascular soft tissue transfer. We adapted the retentive posts on an R-plate and fabricated the upper prostheses with a flexible denture or a fixed resin prosthesis. Finally, the patients had functional rehabilitation, which restored proper mastication.
The retentive posts of the R-plate and upper prosthesis allow functional dental rehabilitation without the need for a bone graft. Virtual simulation using FEM will help to design and optimize the retentive posts. Two or three regular size posts are suitable for the quadrant jaw. This first preliminary step will allow improved patient-specific retentive post designs in the near future.
Url:
DOI: 10.1186/s12957-016-1043-x
PubMed: 27871294
PubMed Central: 5117542
Affiliations:
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Newly designed retentive posts of mandibular reconstruction plate in oral cancer patients based on preliminary FEM study</title><author><name sortKey="Kwon, Ik Jae" sort="Kwon, Ik Jae" uniqKey="Kwon I" first="Ik Jae" last="Kwon">Ik Jae Kwon</name><affiliation wicri:level="4"><nlm:aff id="Aff1">Department of Oral and Maxillofacial Surgery, Dental Research Institute, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, 110-768 South Korea</nlm:aff><country xml:lang="fr">Corée du Sud</country><wicri:regionArea>Department of Oral and Maxillofacial Surgery, Dental Research Institute, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul</wicri:regionArea><placeName><settlement type="city">Séoul</settlement><region type="capital">Région capitale de Séoul</region><settlement type="city">Séoul</settlement></placeName><orgName type="university">Université nationale de Séoul</orgName></affiliation></author><author><name sortKey="Eo, Mi Young" sort="Eo, Mi Young" uniqKey="Eo M" first="Mi Young" last="Eo">Mi Young Eo</name><affiliation wicri:level="4"><nlm:aff id="Aff1">Department of Oral and Maxillofacial Surgery, Dental Research Institute, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, 110-768 South Korea</nlm:aff><country xml:lang="fr">Corée du Sud</country><wicri:regionArea>Department of Oral and Maxillofacial Surgery, Dental Research Institute, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul</wicri:regionArea><placeName><settlement type="city">Séoul</settlement><region type="capital">Région capitale de Séoul</region><settlement type="city">Séoul</settlement></placeName><orgName type="university">Université nationale de Séoul</orgName></affiliation></author><author><name sortKey="Park, Sung Jae" sort="Park, Sung Jae" uniqKey="Park S" first="Sung Jae" last="Park">Sung Jae Park</name><affiliation wicri:level="3"><nlm:aff id="Aff2">Mediwum Inc., Seoul, South Korea</nlm:aff><country xml:lang="fr">Corée du Sud</country><wicri:regionArea>Mediwum Inc., Seoul</wicri:regionArea><placeName><settlement type="city">Séoul</settlement><region type="capital">Région capitale de Séoul</region></placeName></affiliation></author><author><name sortKey="Kim, Soung Min" sort="Kim, Soung Min" uniqKey="Kim S" first="Soung Min" last="Kim">Soung Min Kim</name><affiliation wicri:level="4"><nlm:aff id="Aff1">Department of Oral and Maxillofacial Surgery, Dental Research Institute, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, 110-768 South Korea</nlm:aff><country xml:lang="fr">Corée du Sud</country><wicri:regionArea>Department of Oral and Maxillofacial Surgery, Dental Research Institute, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul</wicri:regionArea><placeName><settlement type="city">Séoul</settlement><region 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type="wicri:Area/Main/Curation">000665</idno><idno type="wicri:Area/Main/Exploration">000665</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Newly designed retentive posts of mandibular reconstruction plate in oral cancer patients based on preliminary FEM study</title><author><name sortKey="Kwon, Ik Jae" sort="Kwon, Ik Jae" uniqKey="Kwon I" first="Ik Jae" last="Kwon">Ik Jae Kwon</name><affiliation wicri:level="4"><nlm:aff id="Aff1">Department of Oral and Maxillofacial Surgery, Dental Research Institute, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, 110-768 South Korea</nlm:aff><country xml:lang="fr">Corée du Sud</country><wicri:regionArea>Department of Oral and Maxillofacial Surgery, Dental Research Institute, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul</wicri:regionArea><placeName><settlement type="city">Séoul</settlement><region type="capital">Région capitale de Séoul</region><settlement type="city">Séoul</settlement></placeName><orgName type="university">Université nationale de Séoul</orgName></affiliation></author><author><name sortKey="Eo, Mi Young" sort="Eo, Mi Young" uniqKey="Eo M" first="Mi Young" last="Eo">Mi Young Eo</name><affiliation wicri:level="4"><nlm:aff id="Aff1">Department of Oral and Maxillofacial Surgery, Dental Research Institute, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, 110-768 South Korea</nlm:aff><country xml:lang="fr">Corée du Sud</country><wicri:regionArea>Department of Oral and Maxillofacial Surgery, Dental Research Institute, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul</wicri:regionArea><placeName><settlement type="city">Séoul</settlement><region type="capital">Région capitale de Séoul</region><settlement type="city">Séoul</settlement></placeName><orgName type="university">Université nationale de Séoul</orgName></affiliation></author><author><name sortKey="Park, Sung Jae" sort="Park, Sung Jae" uniqKey="Park S" first="Sung Jae" last="Park">Sung Jae Park</name><affiliation wicri:level="3"><nlm:aff id="Aff2">Mediwum Inc., Seoul, South Korea</nlm:aff><country xml:lang="fr">Corée du Sud</country><wicri:regionArea>Mediwum Inc., Seoul</wicri:regionArea><placeName><settlement type="city">Séoul</settlement><region type="capital">Région capitale de Séoul</region></placeName></affiliation></author><author><name sortKey="Kim, Soung Min" sort="Kim, Soung Min" uniqKey="Kim S" first="Soung Min" last="Kim">Soung Min Kim</name><affiliation wicri:level="4"><nlm:aff id="Aff1">Department of Oral and Maxillofacial Surgery, Dental Research Institute, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, 110-768 South Korea</nlm:aff><country xml:lang="fr">Corée du Sud</country><wicri:regionArea>Department of Oral and Maxillofacial Surgery, Dental Research Institute, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul</wicri:regionArea><placeName><settlement type="city">Séoul</settlement><region type="capital">Région capitale de Séoul</region><settlement type="city">Séoul</settlement></placeName><orgName type="university">Université nationale de Séoul</orgName></affiliation></author><author><name sortKey="Lee, Jong Ho" sort="Lee, Jong Ho" uniqKey="Lee J" first="Jong Ho" last="Lee">Jong Ho Lee</name><affiliation wicri:level="4"><nlm:aff id="Aff1">Department of Oral and Maxillofacial Surgery, Dental Research Institute, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, 110-768 South Korea</nlm:aff><country xml:lang="fr">Corée du Sud</country><wicri:regionArea>Department of Oral and Maxillofacial Surgery, Dental Research Institute, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul</wicri:regionArea><placeName><settlement type="city">Séoul</settlement><region type="capital">Région capitale de Séoul</region><settlement type="city">Séoul</settlement></placeName><orgName type="university">Université nationale de Séoul</orgName></affiliation></author></analytic><series><title level="j">World Journal of Surgical Oncology</title><idno type="eISSN">1477-7819</idno><imprint><date when="2016">2016</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><sec><title>Background</title><p>The reconstruction of a large mandibular defect poses a challenging issue in oral cancer ablation surgery. One popular option for mandibular continuity reconstruction after tumor resection involves the use of a reconstruction plate (R-plate), which maintains space and contour without bone harvesting. An R-plate, however, cannot provide final functional loading rehabilitation with implants or dentures.</p></sec><sec><title>Methods</title><p>We suggest a new method of functional mandibular reconstruction using retentive posts and an upper prosthesis. The finite element method (FEM) was used to optimize the design. Surgery was needed to adapt the retentive posts. Prosthodontic procedures were required for the upper prosthesis.</p></sec><sec><title>Results</title><p>Eight patients were treated with retentive posts and prostheses. All patients underwent wide resections of the mandible, and reconstruction with an R-plate and microvascular soft tissue transfer. We adapted the retentive posts on an R-plate and fabricated the upper prostheses with a flexible denture or a fixed resin prosthesis. Finally, the patients had functional rehabilitation, which restored proper mastication.</p></sec><sec><title>Conclusions</title><p>The retentive posts of the R-plate and upper prosthesis allow functional dental rehabilitation without the need for a bone graft. Virtual simulation using FEM will help to design and optimize the retentive posts. Two or three regular size posts are suitable for the quadrant jaw. This first preliminary step will allow improved patient-specific retentive post designs in the near future.</p></sec></div></front><back><div1 type="bibliography"><listBibl><biblStruct><analytic><author><name sortKey="Li, Bh" uniqKey="Li B">BH Li</name></author><author><name sortKey="Jung, Hj" uniqKey="Jung H">HJ Jung</name></author><author><name sortKey="Choi, Sw" uniqKey="Choi S">SW Choi</name></author><author><name sortKey="Kim, Sm" uniqKey="Kim S">SM Kim</name></author><author><name sortKey="Kim, Mj" uniqKey="Kim M">MJ Kim</name></author><author><name sortKey="Lee, Jh" uniqKey="Lee J">JH Lee</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Adell, R" uniqKey="Adell R">R Adell</name></author><author><name sortKey="Svensson, B" uniqKey="Svensson B">B Svensson</name></author><author><name sortKey="B Genholm, T" uniqKey="B Genholm T">T Bågenholm</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Troulis, Mj" uniqKey="Troulis M">MJ Troulis</name></author><author><name sortKey="Williams, Wb" uniqKey="Williams W">WB Williams</name></author><author><name sortKey="Kaban, Lb" uniqKey="Kaban L">LB Kaban</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Disa, Jj" uniqKey="Disa J">JJ Disa</name></author><author><name sortKey="Cordeiro, Pg" uniqKey="Cordeiro P">PG Cordeiro</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Van Gemert, J" uniqKey="Van Gemert J">J van Gemert</name></author><author><name sortKey="Holtslag, I" uniqKey="Holtslag I">I Holtslag</name></author><author><name sortKey="Van Der Bilt, A" uniqKey="Van Der Bilt A">A van der Bilt</name></author><author><name sortKey="Merkx, M" uniqKey="Merkx M">M Merkx</name></author><author><name sortKey="Koole, R" uniqKey="Koole R">R Koole</name></author><author><name sortKey="Van Cann, E" uniqKey="Van Cann E">E Van 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Dassonville</name></author><author><name sortKey="Chamorey, E" uniqKey="Chamorey E">E Chamorey</name></author><author><name sortKey="Poissonnet, G" uniqKey="Poissonnet G">G Poissonnet</name></author><author><name sortKey="Ettaiche, M" uniqKey="Ettaiche M">M Ettaiche</name></author><author><name sortKey="Pierre, Cs" uniqKey="Pierre C">CS Pierre</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Mariani, P" uniqKey="Mariani P">P Mariani</name></author><author><name sortKey="Kowalski, L" uniqKey="Kowalski L">L Kowalski</name></author><author><name sortKey="Magrin, J" uniqKey="Magrin J">J Magrin</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Wilde, F" uniqKey="Wilde F">F Wilde</name></author><author><name sortKey="Hanken, H" uniqKey="Hanken H">H Hanken</name></author><author><name sortKey="Probst, F" uniqKey="Probst F">F Probst</name></author><author><name sortKey="Schramm, A" uniqKey="Schramm A">A Schramm</name></author><author><name sortKey="Heiland, M" uniqKey="Heiland M">M Heiland</name></author><author><name sortKey="Cornelius, Cp" uniqKey="Cornelius C">CP Cornelius</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Qin, M" uniqKey="Qin M">M Qin</name></author><author><name sortKey="Liu, Y" uniqKey="Liu Y">Y Liu</name></author><author><name sortKey="Wang, L" uniqKey="Wang L">L Wang</name></author><author><name sortKey="He, J" uniqKey="He J">J He</name></author><author><name sortKey="Xuan, M" uniqKey="Xuan M">M Xuan</name></author><author><name sortKey="Hua, C" uniqKey="Hua C">C Hua</name></author><author><name sortKey="Li, D" uniqKey="Li D">D Li</name></author></analytic></biblStruct></listBibl></div1></back></TEI><affiliations><list><country><li>Corée du Sud</li></country><region><li>Région capitale de Séoul</li></region><settlement><li>Séoul</li></settlement><orgName><li>Université nationale de Séoul</li></orgName></list><tree><country name="Corée du Sud"><region name="Région capitale de Séoul"><name sortKey="Kwon, Ik Jae" sort="Kwon, Ik Jae" uniqKey="Kwon I" first="Ik Jae" last="Kwon">Ik Jae Kwon</name></region><name sortKey="Eo, Mi Young" sort="Eo, Mi Young" uniqKey="Eo M" first="Mi Young" last="Eo">Mi Young Eo</name><name sortKey="Kim, Soung Min" sort="Kim, Soung Min" uniqKey="Kim S" first="Soung Min" last="Kim">Soung Min Kim</name><name sortKey="Lee, Jong Ho" sort="Lee, Jong Ho" uniqKey="Lee J" first="Jong Ho" last="Lee">Jong Ho Lee</name><name sortKey="Park, Sung Jae" sort="Park, Sung Jae" uniqKey="Park S" first="Sung Jae" last="Park">Sung Jae Park</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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