Publications by authors named "Catriona Froggatt"

3 Publications

  • Page 1 of 1

Dentoalveolar outcomes in maxillary reconstruction: A retrospective review of 85 maxillectomy reconstructions.

ANZ J Surg 2021 Jun 14. Epub 2021 Jun 14.

Department of Head and Neck Surgery, Sydney Head and Neck Cancer Institute, Chris O'Brien Lifehouse, Sydney, New South Wales, Australia.

Background: Although microvascular free flaps are often used to reconstruct maxillary defects, dentoalveolar rehabilitation is arguably less common despite its importance to midface function and aesthetics. The aim of this study is to review the contemporary management of maxillary defects in a single quaternary referral institution to identify factors that assist or impede dentoalveolar rehabilitation.

Methods: A retrospective review of maxillary reconstructions performed between February 2017 and December 2020 was performed. Patient characteristics, defect classification, operative techniques, complications and dentoalveolar outcomes were recorded.

Results: A total of 85 maxillary reconstructions were performed in 73 patients. Of the 64 patients where dental rehabilitation was required, 31 received a functional denture (48%) with 24 (38%) being implant-retained. Significant predictors of successful rehabilitation included the use of virtual surgical planning (VSP; 86% vs. 25%, p < 0.001), preoperative prosthodontic assessment (82% vs. 21%, p < 0.001), prefabrication (100% vs. 40%, p = 0.002) and use of the zygomatic implant perforator flap technique (100% vs. 39%, p = 0.001). Preoperative prosthodontic consultation was associated with 21-fold increase in the odds of rehabilitation (odds ratio 20.9, 95% confidence interval 6.54-66.66, p < 0.005).

Conclusion: Preoperative prosthodontic evaluation, VSP and reconstructive techniques developed to facilitate implant placement are associated with increased dental rehabilitation rates. Despite using an institutional algorithm, functional dentures are frequently prevented by factors including soft tissue constraints, disease recurrence and patient motivation.
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http://dx.doi.org/10.1111/ans.17001DOI Listing
June 2021

Transoral robotic free flap inset in oropharyngeal cancer.

Clin Otolaryngol 2021 May 9;46(3):642-644. Epub 2021 Jan 9.

Department of Head and Neck Surgery, Sydney Head and Neck Cancer Institute, Chris O'Brien Lifehouse, Sydney, Australia.

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http://dx.doi.org/10.1111/coa.13696DOI Listing
May 2021

A prospective study of intraoperative assessment of mucosal squamous cell carcinoma margins in the head and neck.

Head Neck 2021 02 23;43(2):590-600. Epub 2020 Oct 23.

Department of Head and Neck Surgery, Sydney Head and Neck Cancer Institute, Chris O'Brien Lifehouse, Sydney, New South Wales, Australia.

Background: In head and neck cancers, tumor margin assessment has important prognostic and therapeutic implications. Frozen section control of margins is commonly employed intraoperatively. However, this is not without limitations. The aim of this study is to determine whether intraoperative slicing of the whole specimen is feasible and what impact this may have on tumor margin assessment and the requirement for postoperative radiotherapy.

Methods: From September 2016 to August 2018, we recruited 22 patients as a pilot study looking at both the practicalities and the clinical relevance of whole margin tumor analysis intraoperatively. Our project is a prospective single arm study with historical controls.

Results: Forty-one percent of our patients required further intraoperative resection for close or involved margins. Seven of these patients who otherwise would have required adjuvant radiotherapy due to their margin status did not, after our intervention.

Conclusions: We found that although requiring resources, this process was feasible without unduly increasing operative times and with potential patient benefit including reduced incidence of adjuvant radiotherapy.
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http://dx.doi.org/10.1002/hed.26517DOI Listing
February 2021
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