Use of objective metrics in dynamic facial reanimation a systematic review

Peter C. Revenaugh, Ryan M. Smith, Max A. Plitt, Lisa Earnest Ishii, Derek O Boahene, Patrick J Byrne

Research output: Contribution to journalReview article

Abstract

IMPORTANCE Facial nerve deficits cause significant functional and social consequences for those affected. Existing techniques for dynamic restoration of facial nerve function are imperfect and result in a wide variety of outcomes. Currently, there is no standard objective instrument for facial movement as it relates to restorative techniques. OBJECTIVE To determine what objective instruments of midface movement are used in outcome measurements for patients treated with dynamic methods for facial paralysis. DATA SOURCES Database searches from January 1970 to June 2017 were performed in PubMed, Embase, Cochrane Library, Web of Science, and Scopus. Only English-language articles on studies performed in humans were considered. The search terms used were (“Surgical Flaps”[Mesh] OR “Nerve Transfer”[Mesh] OR “nerve graft” OR “nerve grafts”) AND (face [mh] OR facial paralysis [mh]) AND (innervation [sh]) OR (“Face”[Mesh] OR facial paralysis [mh]) AND (reanimation [tiab]). STUDY SELECTION Two independent reviewers evaluated the titles and abstracts of all articles and included those that reported objective outcomes of a surgical technique in at least 2 patients. MAIN OUTCOMES AND MEASURES The presence or absence of an objective instrument for evaluating outcomes of midface reanimation. Additional outcome measures were reproducibility of the test, reporting of symmetry, measurement of multiple variables, and test validity. RESULTS Of 241 articles describing dynamic facial reanimation techniques, 49 (20.3%) reported objective outcome measures for 1898 patients. Of those articles reporting objective measures, there were 29 different instruments, only 3 of which reported all outcome measures. CONCLUSIONS AND RELEVANCE Although instruments are available to objectively measure facial movement after reanimation techniques, most studies do not report objective outcomes. Of objective facial reanimation instruments, few are reproducible and able to measure symmetry and multiple data points. To accurately compare objective outcomes in facial reanimation, a reproducible, objective, and universally applied instrument is needed.

Original languageEnglish (US)
Pages (from-to)501-508
Number of pages8
JournalJAMA Facial Plastic Surgery
Volume20
Issue number6
DOIs
StatePublished - Nov 1 2018

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Facial Paralysis
Facial Nerve
Outcome Assessment (Health Care)
Surgical Mesh
Library Science
Nerve Transfer
Transplants
Surgical Flaps
PubMed
Language
Databases

ASJC Scopus subject areas

  • Surgery

Cite this

Use of objective metrics in dynamic facial reanimation a systematic review. / Revenaugh, Peter C.; Smith, Ryan M.; Plitt, Max A.; Ishii, Lisa Earnest; Boahene, Derek O; Byrne, Patrick J.

In: JAMA Facial Plastic Surgery, Vol. 20, No. 6, 01.11.2018, p. 501-508.

Research output: Contribution to journalReview article

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abstract = "IMPORTANCE Facial nerve deficits cause significant functional and social consequences for those affected. Existing techniques for dynamic restoration of facial nerve function are imperfect and result in a wide variety of outcomes. Currently, there is no standard objective instrument for facial movement as it relates to restorative techniques. OBJECTIVE To determine what objective instruments of midface movement are used in outcome measurements for patients treated with dynamic methods for facial paralysis. DATA SOURCES Database searches from January 1970 to June 2017 were performed in PubMed, Embase, Cochrane Library, Web of Science, and Scopus. Only English-language articles on studies performed in humans were considered. The search terms used were (“Surgical Flaps”[Mesh] OR “Nerve Transfer”[Mesh] OR “nerve graft” OR “nerve grafts”) AND (face [mh] OR facial paralysis [mh]) AND (innervation [sh]) OR (“Face”[Mesh] OR facial paralysis [mh]) AND (reanimation [tiab]). STUDY SELECTION Two independent reviewers evaluated the titles and abstracts of all articles and included those that reported objective outcomes of a surgical technique in at least 2 patients. MAIN OUTCOMES AND MEASURES The presence or absence of an objective instrument for evaluating outcomes of midface reanimation. Additional outcome measures were reproducibility of the test, reporting of symmetry, measurement of multiple variables, and test validity. RESULTS Of 241 articles describing dynamic facial reanimation techniques, 49 (20.3{\%}) reported objective outcome measures for 1898 patients. Of those articles reporting objective measures, there were 29 different instruments, only 3 of which reported all outcome measures. CONCLUSIONS AND RELEVANCE Although instruments are available to objectively measure facial movement after reanimation techniques, most studies do not report objective outcomes. Of objective facial reanimation instruments, few are reproducible and able to measure symmetry and multiple data points. To accurately compare objective outcomes in facial reanimation, a reproducible, objective, and universally applied instrument is needed.",
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