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Book ; Online ; Thesis: Vergleich unterschiedlicher Algorithmen zur Unterkiefersegmentierung CT- und MRT- basierter Datensätze von Schweinekadavern: Semiautomatische versus automatisierte Anwendungen

Herrmann, Matthias M. X. [Verfasser] / Ritschl, Lucas M. [Akademischer Betreuer] / Hedderich, Dennis M. [Gutachter] / Ritschl, Lucas M. [Gutachter]

2024

Author's details	Matthias M. X. Herrmann ; Gutachter: Dennis M. Hedderich, Lucas M. Ritschl ; Betreuer: Lucas M. Ritschl
Keywords	Medizin, Gesundheit ; Medicine, Health
Subject code	sg610
Language	German
Publisher	Universitätsbibliothek der TU München
Publishing place	München
Document type	Book ; Online ; Thesis
Database	Digital theses on the web

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Article ; Online: Reply: Preoperative Peroneal Artery Perforator Mapping Using Indocyanine Green Angiography: A Prospective Clinical Trial.

Fichter, Andreas M / Wolff, Klaus-Dietrich / Ritschl, Lucas M

Plastic and reconstructive surgery

2023 Volume 151, Issue 6, Page(s) 1053e–1054e

MeSH term(s)	Humans ; Indocyanine Green ; Prospective Studies ; Angiography ; Plastic Surgery Procedures ; Tibial Arteries ; Perforator Flap/blood supply
Chemical Substances	Indocyanine Green (IX6J1063HV)
Language	English
Publishing date	2023-05-24
Publishing country	United States
Document type	Journal Article
ZDB-ID	208012-6
ISSN	1529-4242 ; 0032-1052 ; 0096-8501
ISSN (online)	1529-4242
ISSN	0032-1052 ; 0096-8501
DOI	10.1097/PRS.0000000000010176
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Uk I Zs.142: Show issues			Location: Je nach Verfügbarkeit (siehe Angabe bei Bestand) bis Jg. 2021: Bestellungen von Artikeln über das Online-Bestellformular ab Jg. 2022: Lesesaal (EG)
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Book ; Online ; Thesis: Klinisch-prospektive Untersuchung des Einflusses der Unterkieferprotrusionsstrecke auf den Posterior Airway Space

Zink, Jakob Karl Ulrich [Verfasser] / Ritschl, Lucas M. [Akademischer Betreuer] / Hedderich, Dennis M. [Gutachter] / Ritschl, Lucas M. [Gutachter]

2023

Author's details	Jakob Karl Ulrich Zink ; Gutachter: Dennis M. Hedderich, Lucas M. Ritschl ; Betreuer: Lucas M. Ritschl
Keywords	Medizin, Gesundheit ; Medicine, Health
Subject code	sg610
Language	German
Publisher	Universitätsbibliothek der TU München
Publishing place	München
Document type	Book ; Online ; Thesis
Database	Digital theses on the web

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Article ; Online: Comparison of three-dimensional imaging of the nose using three different 3D-photography systems: an observational study.

Ritschl, Lucas M / Classen, Carolina / Kilbertus, Paul / Eufinger, Julia / Storck, Katharina / Fichter, Andreas M / Wolff, Klaus-Dietrich / Grill, Florian D

Head & face medicine

2024 Volume 20, Issue 1, Page(s) 7

Abstract: Background: New 3D technologies for superficial soft tissue changes, especially in plastic and reconstructive surgical procedures, can improve the planning and documentation of facial surgeries. The purpose of this study was to compare and determine the ...

Abstract	Background: New 3D technologies for superficial soft tissue changes, especially in plastic and reconstructive surgical procedures, can improve the planning and documentation of facial surgeries. The purpose of this study was to compare and determine the applicability and feasibility of three different 3D-photography systems in clinical practice imaging the nose. Methods: A total of 16 healthy non-operated noses were included in this prospective study. A plaster model of each nose was produced, digitized, and converted to a .stl mesh (= ground truth model). Three-dimensional images of each nose were then taken using Artec Space Spider (gold standard), Planmeca ProFace®, and the Bellus3D Dental Pro application. All resulting .stl files were aligned to the ground truth model using MeshLab software, and the root mean square error (RMSE), mean surface distance (MSD), and Hausdorff distance (HD) were calculated. Results: The Artec Space Spider 3D-photography system showed significantly better results compared to the two other systems in regard to RMSE, MSD, and HD (each p < 0.001). There was no significant difference between Planmeca ProFace® and Bellus3D Dental Pro in terms of RMSE, MSD, and HD. Overall, all three camera systems showed a clinically acceptable deviation to the reference model (range: -1.23-1.57 mm). Conclusions: The three evaluated 3D-photography systems were suitable for nose imaging in the clinical routine. While Artec Space Spider showed the highest accuracy, the Bellus3D Dental Pro app may be the most feasible option for everyday clinical use due to its portability, ease of use, and low cost. This study presents three different systems, allowing readers to extrapolate to other systems when planning to introduce 3D photography in the clinical routine.
MeSH term(s)	Imaging, Three-Dimensional ; Prospective Studies ; Photography ; Nose/diagnostic imaging ; Plastic Surgery Procedures
Language	English
Publishing date	2024-01-24
Publishing country	England
Document type	Observational Study, Veterinary ; Journal Article
ZDB-ID	2202219-3
ISSN	1746-160X ; 1746-160X
ISSN (online)	1746-160X
ISSN	1746-160X
DOI	10.1186/s13005-024-00406-4
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Article: Oral rehabilitation and associated quality of life following mandibular reconstruction with free fibula flap: a cross-sectional study.

Ritschl, Lucas M / Singer, Hannes / Clasen, Franz-Carl / Haller, Bernhard / Fichter, Andreas M / Deppe, Herbert / Wolff, Klaus-Dietrich / Weitz, Jochen

Frontiers in oncology

2024 Volume 14, Page(s) 1371405

Abstract: Introduction: Mandibular reconstruction with the free fibula flap (FFF) has become a standardized procedure. The situation is different with oral rehabilitation, so the purpose of this study was to investigate the frequency of implant placement and ... ...

Abstract	Introduction: Mandibular reconstruction with the free fibula flap (FFF) has become a standardized procedure. The situation is different with oral rehabilitation, so the purpose of this study was to investigate the frequency of implant placement and prosthetic restoration. Additionally, the patients' situation, motivation, and treatment course were structurally assessed. Materials and methods: All cases between January 2013 and December 2018 that underwent mandibular reconstruction in our department with a free fibula flap and gave written informed consent to participate were interviewed with two structured questionnaires about their restoration and quality of life. Additionally, medical records, general information, status of implants and therapy, and metric analyses of the inserted implants were performed. Results: In total 59 patients were enrolled and analyzed in this monocentric study. Overall, oral rehabilitation was achieved in 23.7% at the time of investigation. In detail, implants were inserted in 37.3% of patients and showed an 83.3% survival of dental implants. Of these implanted patients, dental implants were successfully restored with a prosthetic restoration in 63.6. Within this subgroup, satisfaction with the postoperative aesthetic and functional result was 79.9% and with the oral rehabilitation process was 68.2%. Satisfaction with the implant-borne prosthesis was 87.5%, with non-oral-squamous-cell-carcinoma patients being statistically significantly more content with the handling ( Discussion: Despite the well-reconstructed bony structures, there is a need to increase the effort of achieving oral rehabilitation, especially looking at the patient's persistent motivation for the procedure.
Language	English
Publishing date	2024-03-18
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2649216-7
ISSN	2234-943X
ISSN	2234-943X
DOI	10.3389/fonc.2024.1371405
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Article ; Online: Extended orbital exenteration, epithetic restoration, and patient supply: A cross-sectional study of a historic cohort.

Ritschl, Lucas M / Schwarz, Matthias / Klinger, Franziska / Wolff, Klaus-Dietrich / Niu, Minli / Weitz, Jochen

Head & neck

2023 Volume 46, Issue 3, Page(s) 473–484

Abstract: Background: The aim of this study was to investigate the clinical course and to redefine an optimized algorithm for OE cases until epithetic restoration.: Methods: Indication, defect type according to Kesting, reconstructive technique, incidence of ... ...

Abstract	Background: The aim of this study was to investigate the clinical course and to redefine an optimized algorithm for OE cases until epithetic restoration. Methods: Indication, defect type according to Kesting, reconstructive technique, incidence of postoperative complications and peri-implantitis, patients' quality of life, timing of periorbital implant insertion, incidence of and interval to implant loss, and time until epithetic restoration were analyzed in 43 patients. Results: A significant correlation was detected between wound dehiscence and defect type. Out of 24 patients, 7 were implanted secondarily with a median time interval of 399 days (270-2015) after OE. Eleven out of 83 placed implants were lost in 8 patients with a median time interval of 586 days (264-4485) after insertion. The majority of epithesis carriers had no or few restrictions in their quality of life. Conclusions: We recommend our modified treatment algorithm to further improve and shorten the clinical course.
MeSH term(s)	Humans ; Cross-Sectional Studies ; Quality of Life ; Plastic Surgery Procedures ; Orbit Evisceration ; Disease Progression ; Dental Implants
Chemical Substances	Dental Implants
Language	English
Publishing date	2023-12-14
Publishing country	United States
Document type	Journal Article
ZDB-ID	645165-2
ISSN	1097-0347 ; 0148-6403 ; 1043-3074
ISSN (online)	1097-0347
ISSN	0148-6403 ; 1043-3074
DOI	10.1002/hed.27594
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Jg. 1995 - 2021: Lesesall (1.OG)
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Book ; Online ; Thesis: Vergleich der Präzision und Genauigkeit der dreidimensionalen Erfassung der Nase mit drei unterschiedlichen 3D-Photographiesystemen

Claßen, Carolina Anna Sophia [Verfasser] / Ritschl, Lucas M. [Akademischer Betreuer] / Hedderich, Dennis. M. [Gutachter] / Ritschl, Lucas M. [Gutachter]

2022

Author's details	Carolina Anna Sophia Claßen ; Gutachter: Dennis. M. Hedderich, Lucas M. Ritschl ; Betreuer: Lucas M. Ritschl
Keywords	Medizin, Gesundheit ; Medicine, Health
Subject code	sg610
Language	German
Publisher	Universitätsbibliothek der TU München
Publishing place	München
Document type	Book ; Online ; Thesis
Database	Digital theses on the web

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Article: Comparative Photographic, Retrospective Analysis of Nonsyndromic Cleft Noses Treated with or without NAM.

Wolff, Klaus-Dietrich / Grill, Florian D / Ritschl, Lucas M

Plastic and reconstructive surgery. Global open

2020 Volume 8, Issue 9, Page(s) e3045

Abstract: Background: Long-term results and efficacy of nasoalveolar molding (NAM) on the perinasal region are reported controversially in the literature. With this study, we demonstrate our experiences, contribute to the ongoing discussion, and describe our ... ...

Abstract	Background: Long-term results and efficacy of nasoalveolar molding (NAM) on the perinasal region are reported controversially in the literature. With this study, we demonstrate our experiences, contribute to the ongoing discussion, and describe our decision-making when NAM is indicated or not. Methods: Conventional pre- and postinterventional photographs of patients with nonsyndromic unilateral and bilateral cleft lip and palate (UCLP and BCLP) were analyzed. The 2 independent raters were blinded to therapy (NAM versus non-NAM), and 7 parameters were measured. Intraclass correlation coefficient for intra- and interrater reliability was calculated. The Mann-Whitney U test was performed to compare therapy- and appearance-matched pairs. Finally, 30 specialists in cranio-maxillofacial surgery performed a subjective, blinded rating of matched NAM and non-NAM cases. Results: Thirty-six patients, 16 UCLP and 20 BCLP, were enrolled. The intraclass correlation coefficients for intra- and interrater reliability were excellent for all measurements, except for nasal sill (0.77 intrarater and 0.80 interrater). Height-to-width ratio ( Conclusions: Children with severe UCLP may benefit from NAM therapy in the sense of better symmetry and a more homogenous appearance. Patients with moderate UCLP and BCLP did not benefit, and the risk of the burden of care increased.
Language	English
Publishing date	2020-09-23
Publishing country	United States
Document type	Journal Article
ZDB-ID	2851682-5
ISSN	2169-7574 ; 2169-7574
ISSN (online)	2169-7574
ISSN	2169-7574
DOI	10.1097/GOX.0000000000003045
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Zs.A 7091: Show issues

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Article ; Online: The COVID-19 pandemic and its possible impact on the treatment of odontogenic and intraoral abscesses.

Grill, Florian D / Rothlauf, Paulina / Ritschl, Lucas M / Deppe, Herbert / Stimmer, Herbert / Scheufele, Florian / Schwarz, Matthias / Wolff, Klaus-Dietrich / Fichter, Andreas M

Head & face medicine

2023 Volume 19, Issue 1, Page(s) 36

Abstract: Most odontogenic and intraoral abscesses can be treated on an outpatient basis with local anesthesia. However, severe disease progression may require an incision under general anesthesia (GA) with postoperative inpatient treatment. This study aimed to ... ...

Abstract	Most odontogenic and intraoral abscesses can be treated on an outpatient basis with local anesthesia. However, severe disease progression may require an incision under general anesthesia (GA) with postoperative inpatient treatment. This study aimed to evaluate the first "COVID-19 year" in Germany and compare the first "COVID-19 year" with the two previous years. All consecutive cases with odontogenic or intraoral abscesses treated in an outpatient or inpatient setting between 2018 and 2021 were included in this study. Data were collected, including the type of anesthesia, length of hospital stay, and healthcare costs. Despite the lower total number of abscess treatments in the first year of COVID-19 (n = 298 patients) than that in the two previous years (n = 663 patients), the number of advanced abscesses requiring intervention under GA was significantly higher (p < 0.001). This increased burden of care was also reflected in increased healthcare costs. The measures taken against the COVID-19 pandemic had an impact on the course of other diseases, for example, odontogenic and intraoral abscesses. The results showed an emerging conflict in patient care during the pandemic crisis that should be considered in possible future pandemics.
MeSH term(s)	Humans ; Abscess/epidemiology ; Abscess/surgery ; COVID-19 ; Germany/epidemiology ; Length of Stay ; Pandemics ; Quarantine ; Periapical Abscess ; Periodontal Abscess ; Odontogenic Tumors
Language	English
Publishing date	2023-08-19
Publishing country	England
Document type	Journal Article
ZDB-ID	2202219-3
ISSN	1746-160X ; 1746-160X
ISSN (online)	1746-160X
ISSN	1746-160X
DOI	10.1186/s13005-023-00381-2
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Article ; Online: Conditioning of microvascular venous flaps in rats.

Heiliger, Christian / Ritschl, Lucas M / Fichter, Andreas M / Postl, Lukas K / Kanatas, Anastasios / Wolff, Klaus Dietrich / Mücke, Thomas

Scientific reports

2023 Volume 13, Issue 1, Page(s) 1029

Abstract: Venous-only perfusion flaps have not been used widely because of the associated high failure rate. Tissue conditioning offers a broad scope of techniques that can be applied pre-, peri-, or postoperatively to promote the adaptation of the affected tissue ...

Abstract	Venous-only perfusion flaps have not been used widely because of the associated high failure rate. Tissue conditioning offers a broad scope of techniques that can be applied pre-, peri-, or postoperatively to promote the adaptation of the affected tissue to any subsequent stress. This study aimed to assess the survival rates associated with a pure venous perfusion flap and investigate whether the timing of the vascular conditioning can affect free flap survival. Forty-four rats were included in the experiment. Group I underwent veno-arterial anastomoses with epigastric graft with pure venous perfusion without tissue conditioning. Groups II and III were pretreated for 7 or 14 days with ischemic conditioning. These groups were compared with a control group (group IV) of conventionally perfused flaps. After the initial surgery, all flaps were assessed clinically, photometrically, and by indocyanine green videoangiography. The flap success rates were 0% in group I, 49.97% ± 24.34% in group II, and 64.95% ± 20.36% in group III. The control group showed an overall survival of 89.3% ± 6.51%. With suitable conditioning, pure venous blood supply can provide adequate perfusion in the rat epigastric flap model. The timing of vascular conditioning appears to be critical for flap survival.
MeSH term(s)	Rats ; Animals ; Veins ; Vascular Surgical Procedures ; Arteries ; Fluorescein Angiography ; Free Tissue Flaps ; Graft Survival
Language	English
Publishing date	2023-01-19
Publishing country	England
Document type	Journal Article
ZDB-ID	2615211-3
ISSN	2045-2322 ; 2045-2322
ISSN (online)	2045-2322
ISSN	2045-2322
DOI	10.1038/s41598-023-28054-9
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