Takatoshi Yotsuyanagi

ORCID: 0000-0003-0726-3973
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About
Contact & Profiles
Research Areas
  • Reconstructive Facial Surgery Techniques
  • Craniofacial Disorders and Treatments
  • Reconstructive Surgery and Microvascular Techniques
  • Cleft Lip and Palate Research
  • Ear Surgery and Otitis Media
  • Ear and Head Tumors
  • Nasal Surgery and Airway Studies
  • Congenital Ear and Nasal Anomalies
  • Facial Nerve Paralysis Treatment and Research
  • Congenital limb and hand anomalies
  • Ocular Disorders and Treatments
  • Facial Trauma and Fracture Management
  • Oral and Maxillofacial Pathology
  • dental development and anomalies
  • Fibroblast Growth Factor Research
  • RNA Interference and Gene Delivery
  • Trauma Management and Diagnosis
  • Signaling Pathways in Disease
  • Spinal Fractures and Fixation Techniques
  • Industrial Vision Systems and Defect Detection
  • Facial Rejuvenation and Surgery Techniques
  • Orthodontics and Dentofacial Orthopedics
  • Dental Implant Techniques and Outcomes
  • Shoulder and Clavicle Injuries
  • Wound Healing and Treatments

Sapporo Medical University
2015-2025

VA Connecticut Healthcare System
2021

Creative Commons
2021

Hirosaki University
1993-2002

May Institute
1998

Background: It has been suggested that there is a close association of abnormality in auricular muscles with various congenital deformities. However, no investigation to determine what are involved and how they affect the deformity. The authors examined abnormalities for patients Methods: 77 auricles 62 deformities, including cryptotia, Stahl's ear, prominent lop others. superior posterior from extrinsic muscle group oblique transverse intrinsic were investigated. Results: found...

10.1097/prs.0000000000001383 article EN Plastic & Reconstructive Surgery 2015-06-26

ABSTRACT Extensive resections of the maxillary bone often result in significant defects that affect oral functions such as speech and chewing. Although dentomaxillary prostheses are common, they frequently lead to instability reduced chewing ability. Vascularised grafts, including fibula, increasingly used address these challenges due their anatomical suitability functional restoration benefits. Despite advances, problems remain, insufficient height for stable implantation. A 60-year-old...

10.1563/aaid-joi-d-24-00141 article EN Journal of Oral Implantology 2025-02-05

A postauricular chondrocutaneous flap including a artery was used in reconstructing congenital dysplasia of the earlobe. This had safe and sufficient blood supply an excellent texture match. To reconstruct congenitally absent earlobes two patients, skin mastoid region that has subcutaneous pedicle were used. hypoplastic earlobe clefts three hinge flaps small transpositioned The reconstructed thin, natural form, deformity by contracture not developed. donor scar left inconspicuous.

10.1097/00006534-199412000-00026 article EN Plastic & Reconstructive Surgery 1994-12-01

The effect of tacrolimus (FK506) on down-regulation IL-2 production by T cells is considered to be mainly responsible for its strong suppression immunological events. In this study, we show that FK506 also has an affect antigen presentation antigen-presenting in vitro. was able inhibit the endogenous MHC class II-restricted minor histocompatibility antigens primary dendritic (DC) vitro, but cyclosporine A (CsA) and rapamycin (RAP) were not. RNA interference (RNAi)-mediated reduction...

10.1002/eji.200636392 article EN European Journal of Immunology 2007-05-24

Yotsuyanagi, Takatoshi M.D., Ph.D.; Yokoi, Katsunori Urushidate, Satoshi M.D.; Sawada, Yukimasa M.D. Author Information

10.1097/00006534-199805000-00031 article EN Plastic & Reconstructive Surgery 1998-05-01

To clarify the relationship between mandibular ramus height and function of masticatory muscles in patients with hemifacial microsomia.Retrospective study imaging physiological data.Images data were obtained from records Sapporo Medical University Hospital.A total 29 microsomia who showed Pruzansky grades I, II deformity.Mandibular muscle volume evaluated multi-detector row computed tomography. The electromyographic value was measured by K7 Evaluation System. classified into three groups...

10.1597/14-329 article EN The Cleft Palate-Craniofacial Journal 2016-01-11

Objective:To clarify the morphological characteristics of hemifacial microsomia (HFM) by quantitative analysis cephalometric radiographs. Main Outcome Measures:We used linear and angular measurements analyzed middle face lower face. Results:The ratios affected side to unaffected (A/U) lateral distance mandibular condyle, ramus height, length body mandible in HFM group were significantly than control group. The inclination was larger with side, extent side. A/U angle Moreover, had significant...

10.1177/1055665618813453 article EN The Cleft Palate-Craniofacial Journal 2018-12-11

Surgical reconstruction options of soft-tissue defects often include random pattern skin flaps. Flap survival depends on flap size and rotation arc can be challenging regarding perfusion, leading to wound healing complications, insufficient coverage, even loss. Therefore, novel approaches that promote are required. Bone marrow-derived mesenchymal stem cells intravenous infusion is therapeutically effective in various experimental disease models by means multimodal orchestrated mechanisms...

10.1097/prs.0000000000008327 article EN Plastic & Reconstructive Surgery 2021-08-11

Some cases of moderate or severe cryptotia are accompanied by a shortage the helix. Although various operative techniques for correcting have been reported, elongation helix is not considered in most those techniques. In helix, drooped wide like constricted ear cranially and posteriorly hypoplastic ear, which characteristic cryptotia, can appear after surgery if has elongated. We previously reported large Z-plasty technique that become one popular cryptotia. However, satisfactory results...

10.1097/scs.0000000000009427 article EN Journal of Craniofacial Surgery 2023-06-05

10.1016/0007-1226(93)90120-z article EN British Journal of Plastic Surgery 1993-01-01

We have already reported surgical procedures for lobule-type microtia that provide an excellent contour and shape of the ear with minimum sacrifice donor. succeeded in establishing a standard technique almost all types concha-type effectively uses remnant can use unified costal cartilage frame.The concept our is should be used maximally but deformed area completely replaced by frame. The differences between frame are lower half beneath antihelical concha cymba base omitted microtia. from...

10.1097/gox.0000000000002337 article EN cc-by-nc-nd Plastic & Reconstructive Surgery Global Open 2019-07-01

The authors describe a helical crus reconstruction technique using postauricular chondrocutaneous flap vascularized by the vessels. They used this procedure on 7 patients who had developed large defect following surgery. In each patient design was adjusted to fit form of defect. All flaps were in easy reach and all survived without any complications. reconstructed ears good three-dimensional form, color texture match satisfactory. donor site not noticeable because it hidden behind ear....

10.1097/00000637-199901000-00011 article EN Annals of Plastic Surgery 1999-01-01

The case of a 2-year-old girl with facial soft-tissue injury from an accident mercury thermometer is presented. All tissues containing droplets metallic should be removed immediately and careful examination for signs poisoning conducted over the long term.

10.1097/00005373-199605000-00033 article EN Journal of Trauma and Acute Care Surgery 1996-05-01

This is the first report to investigate correlation between ear anomalies related development of specific structures and chorda tympani dysfunction (CTD) in congenital microtia. CTD not always consistent with severity anomaly or presence facial nerve paralysis (FNP).To relationship as well FNP microtia.A retrospective assessment was performed for all patients microtia over period 2010-2016. All ears were graded based on deformity using Jahrsdoerfer system, findings computed tomography...

10.1080/00016489.2016.1278306 article EN Acta Oto-Laryngologica 2017-01-26

Bifid nose is a rare congenital abnormality and its surgical correction difficult. We represent case of bifid with mild nasal deformity without cerebral or lip deformity. performed rhinoplasty kind the forked flap at one year age appearance improved.

10.4236/mps.2014.41001 article EN Modern Plastic Surgery 2013-12-19
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