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Facial reanimation

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https://www.readbyqxmd.com/read/28424583/a-rodent-model-of-dynamic-facial-reanimation-using-functional-electrical-stimulation
#1
Mark A Attiah, Julius de Vries, Andrew G Richardson, Timothy H Lucas
Facial paralysis can be a devastating condition, causing disfiguring facial droop, slurred speech, eye dryness, scarring and blindness. This study investigated the utility of closed-loop functional electric stimulation (FES) for reanimating paralyzed facial muscles in a quantitative rodent model. The right buccal and marginal mandibular branches of the rat facial nerve were transected for selective, unilateral paralysis of whisker muscles. Microwire electrodes were implanted bilaterally into the facial musculature for FES and electromyographic (EMG) recording...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28391532/outcome-of-a-graduated-minimally-invasive-facial-reanimation-in-patients-with-facial-paralysis
#2
Laura C Holtmann, Anja Eckstein, Kerstin Stähr, Minzhi Xing, Stephan Lang, Stefan Mattheis
Peripheral paralysis of the facial nerve is the most frequent of all cranial nerve disorders. Despite advances in facial surgery, the functional and aesthetic reconstruction of a paralyzed face remains a challenge. Graduated minimally invasive facial reanimation is based on a modular principle. According to the patients' needs, precondition, and expectations, the following modules can be performed: temporalis muscle transposition and facelift, nasal valve suspension, endoscopic brow lift, and eyelid reconstruction...
April 8, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28363483/restoration-of-reaching-and-grasping-movements-through-brain-controlled-muscle-stimulation-in-a-person-with-tetraplegia-a-proof-of-concept-demonstration
#3
A Bolu Ajiboye, Francis R Willett, Daniel R Young, William D Memberg, Brian A Murphy, Jonathan P Miller, Benjamin L Walter, Jennifer A Sweet, Harry A Hoyen, Michael W Keith, P Hunter Peckham, John D Simeral, John P Donoghue, Leigh R Hochberg, Robert F Kirsch
BACKGROUND: People with chronic tetraplegia, due to high-cervical spinal cord injury, can regain limb movements through coordinated electrical stimulation of peripheral muscles and nerves, known as functional electrical stimulation (FES). Users typically command FES systems through other preserved, but unrelated and limited in number, volitional movements (eg, facial muscle activity, head movements, shoulder shrugs). We report the findings of an individual with traumatic high-cervical spinal cord injury who coordinated reaching and grasping movements using his own paralysed arm and hand, reanimated through implanted FES, and commanded using his own cortical signals through an intracortical brain-computer interface (iBCI)...
March 28, 2017: Lancet
https://www.readbyqxmd.com/read/28299269/temporalis-pull-through-vs-fascia-lata-augmentation-in-facial-reanimation-for-facial-paralysis
#4
S M Balaji
OBJECTIVES: Surgical rehabilitation of facial palsy is challenging as each case is unique and success rate is often unpredictable. In one technique, temporalis is elevated from origin preserving vessels, and this elevation increases the length which is tunneled into buccal tissues (pull-through technique, Group A). In the other technique, a harvested fascia lata is attached to temporalis after a coronoidectomy release and the fascia lata is attached to the modiolus (Group B). The aim of this study is to compare the two different surgical techniques...
July 2016: Annals of Maxillofacial Surgery
https://www.readbyqxmd.com/read/28268652/a-survey-on-the-feasibility-of-surface-emg-in-facial-pacing
#5
Ville Rantanen, Mirja Ilves, Antti Vehkaoja, Anton Kontunen, Jani Lylykangas, Eeva Makela, Markus Rautiainen, Veikko Surakka, Jukka Lekkala
A survey on the feasibility of surface electromyography (EMG) measurements in facial pacing is presented. Pacing for unilateral facial paralysis consists of the measurement of activity from the healthy side of the face and functional electrical stimulation to reanimate the paralyzed one. The goal of this study is to evaluate the feasibility of surface EMG as a measurement method to detect muscle activations and to determine their intensities. Prior work is discussed, and results from experiments where 12 participants carried out a set of facial movements are presented...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226834/a-survey-on-the-feasibility-of-surface-emg-in-facial-pacing
#6
Ville Rantanen, Mirja Ilves, Antti Vehkaoja, Anton Kontunen, Jani Lylykangas, Eeva Makela, Markus Rautiainen, Veikko Surakka, Jukka Lekkala, Ville Rantanen, Mirja Ilves, Antti Vehkaoja, Anton Kontunen, Jani Lylykangas, Eeva Makela, Markus Rautiainen, Veikko Surakka, Jukka Lekkala, Veikko Surakka, Jukka Lekkala, Mirja Ilves, Markus Rautiainen, Anton Kontunen, Antti Vehkaoja, Jani Lylykangas, Ville Rantanen, Eeva Makela
A survey on the feasibility of surface electromyography (EMG) measurements in facial pacing is presented. Pacing for unilateral facial paralysis consists of the measurement of activity from the healthy side of the face and functional electrical stimulation to reanimate the paralyzed one. The goal of this study is to evaluate the feasibility of surface EMG as a measurement method to detect muscle activations and to determine their intensities. Prior work is discussed, and results from experiments where 12 participants carried out a set of facial movements are presented...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28198771/correlation-between-facial-nerve-axonal-load-and-age-and-its-relevance-to-facial-reanimation
#7
Austin Hembd, Purushottam Nagarkar, Justin Perez, Andrew Gassman, Philip Tolley, Joan Reisch, Charles L White, Shai Rozen
PURPOSE: Two-stage facial reanimation procedures with a cross-facial nerve graft often have unsatisfactory results in the older patient. Although the cause of result variability is likely multifactorial, some studies suggest that increased donor nerve axonal load improves function of a free muscle transfer after a cross-facial nerve graft. This study attempts to characterize the relationship between age and facial nerve axonal load. METHODS: 63 fresh, cadaveric heads were dissected to expose the facial nerve...
February 13, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28159544/analysis-of-the-ideal-muscle-weight-of-gracilis-muscle-transplants-for-facial-reanimation-surgery-with-regard-to-the-donor-nerve-and-outcome
#8
David Braig, Holger Bannasch, G Björn Stark, Steffen U Eisenhardt
BACKGROUND: Free functional muscle transfers represent the 'criterion standard' for smile reconstruction in facial paralysis. The gracilis muscle is a common donor muscle; however, no data exist regarding the volume of the muscle tissue that is necessary for symmetric commissure excursion. METHODS: All patients with facial paralysis receiving a free functional muscle transfer for facial reanimation surgery between January 2009 and November 2015 were retrospectively analysed...
April 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28121890/facial-reanimation-basic-surgical-tools-and-creation-of-an-effective-toolbox-for-treating-patients-with-facial-paralysis-part-a-functional-muscle-transfers-in-the-long-term-facial-palsy-patient
#9
Shai M Rozen
The literature on facial paralysis is vast; however, detailed videos of the basic tools of dynamic reanimation within the context of patient scenarios accompanied by detailed narrative emphasizing both technique and thought processes are not common. Although not all scenarios of facial paralysis can be discussed in one setting, videographic visualization of basic surgical procedures, including facial marking, facial dissection, donor nerve preparation, cross-facial nerve graft, nerve transfers, and muscle harvest and inset, may provide a strong toolbox...
February 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28121882/pedicled-temporalis-muscle-flap-for-craniofacial-reconstruction-a-35-year-clinical-experience-with-366-flaps
#10
Stefano Spanio di Spilimbergo, Paolo Nordera, Samir Mardini, Giusy Castiglione, Harvey Chim, Vittore Pinna, Massimo Brunello, Claudio Cusino, Squaquara Roberto, Ugo Baciliero
BACKGROUND: In the past 130 years, the temporalis muscle flap has been used for a variety of different indications. In this age of microsurgery and perforator flaps, the temporalis muscle flap still has many useful applications for craniofacial reconstruction. METHODS: Three hundred sixty-six temporalis muscle flaps were performed in a single center between 1978 and 2012. The authors divided the cases into two series-before and after 1994-because, after 1994, they started to perform free flap reconstructions, and indications for reconstruction with a temporalis muscle flap were changed RESULTS:: In the series after 1994, flaps were most commonly used for reconstruction of defects in the maxilla, mandible, and oropharynx, in addition to facial reanimation and filling of orbital defects...
February 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28073285/muscle-nerve-muscle-grafting-for-facial-reanimation-in-rats
#11
Steven J Charous, Jeffery M Hotaling, Bridget D Burgess, Joshua M Sappington, James Park, Grant Turek, Eileen M Foecking
OBJECTIVE: Facial paralysis is a devastating condition leaving patients with a myriad of aesthetic and functional consequences. Muscle-nerve-muscle (MNM) neurotization is a reinnervation technique that involves implanting an autogenous nerve graft as a conduit between an innervated "donor" muscle and a denervated "recipient" muscle. We investigated the use of MNM reinnervation, alone or in combination with electrical stimulation (ES) and testosterone propionate (TP) in comparison to nerve reanastomosis (RE), on functional recovery following rat facial nerve injury...
April 2017: Annals of Otology, Rhinology, and Laryngology
https://www.readbyqxmd.com/read/28067972/single-innervated-segmented-vastus-lateralis-for-midfacial-reanimation-during-radical-parotidectomy
#12
Lauren S H Chong, Timothy J Eviston, Bruce Ashford, Ardalan Ebrahami, Jonathan R Clark
BACKGROUND: Innervated free muscle transfer using the gracilis muscle or temporalis myoplasty has been successfully utilized for facial reanimation in chronic facial palsy. These techniques are less suited to immediate facial reconstruction in the setting of radical parotidectomy, in which the complexity of the defect, patient age, postoperative radiotherapy, and limited life expectancy pose particular challenges. METHODS: We present a novel description of the use of a chimeric anterolateral thigh (ALT) flap and innervated vastus lateralis to achieve midface static suspension and dynamic reanimation in the setting of radical parotidectomy...
March 2017: Head & Neck
https://www.readbyqxmd.com/read/28006048/test-retest-reliability-and-agreement-between-in-person-and-video-assessment-of-facial-mimetic-function-using-the-eface-facial-grading-system
#13
Caroline A Banks, Nate Jowett, Tessa A Hadlock
Importance: Use of a robust high-resolution instrument for grading of facial symmetry would enhance reporting the outcomes of facial reanimation interventions. The eFACE is one such tool. Objective: To determine test-retest reliability of the eFACE tool over time and agreement between eFACE assessments made in person vs those made using video of facial mimetic function. Design, Setting, and Participants: A prospective observational study was conducted among 75 consecutive patients with varying degrees of facial palsy who presented between July 1 and December 31, 2014, to an academic tertiary referral hospital...
December 22, 2016: JAMA Facial Plastic Surgery
https://www.readbyqxmd.com/read/28005772/correction-of-residual-static-and-dynamic-labial-deviations-in-a-paralyzed-face-after-free-gracilis-muscle-transplantation
#14
Ricardo Horta, Inês Correia-Sá, Ricardo Nascimento, Alvaro Silva, José Amarante
Free muscle flap transfer is currently the procedure of choice for longstanding facial paralysis to restore symmetry both at rest and when smiling. However, movements obtained are generally localized, unidirectional, and philtrum centralization and lower lip movement is not proportionally achieved. The stability of free flap insertion at the lips also interferes with the results, as gradual disinsertion and shifting of the nasolabial fold can be caused by repetitive movements. Asymmetry of smile can also be caused by lip depressor inactivity due to marginal mandibular paralysis, and both dynamic and static procedures are often required after dynamic reanimation...
November 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28002243/smile-reanimation-after-unilateral-facial-palsy-by-lengthening-temporalis-myoplasty-objective-and-subjective-evaluation-on-25-cases
#15
Claire Foirest, Benjamin Granger, Peggy Gatignol, Isabelle Bernat, Yann Nguyen, Georges Lamas, Frederic Tankere
BACKGROUND: Comparison of functional results of lengthening temporalis myoplasty relies in current practice on subjective scales. The goal of this study was to define a simple, reproducible, objective scale validated through a comparison with a subjective scale for smile symmetrization results after temporal muscle myoplasty. METHODS: A retrospective study was conducted on 25 patients having a unilateral facial palsy and rehabilitated with lengthening temporalis myoplasty...
April 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27988149/a-technique-for-facial-reanimation-the-partial-temporalis-muscle-tendon-transfer-with-a-fascia-lata-sling
#16
Thomas Edward Pidgeon, Radovan Boca, Fazel Fatah
BACKGROUND: This report describes the results of a surgical procedure for facial reanimation. This single-stage technique involves the orthodromic transfer of only a superficial segment of the temporalis tendon. This is extended with fascia lata to achieve elevation of the oral commissure along the desired vector in the paralysed hemi-face. METHODS: A retrospective case note review was performed. Patients' photographs were objectively evaluated with Facial Assessment by Computer Evaluation (FACE) software...
March 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/27930763/association-among-facial-paralysis-depression-and-quality-of-life-in-facial-plastic-surgery-patients
#17
Jason C Nellis, Masaru Ishii, Patrick J Byrne, Kofi D O Boahene, Jacob K Dey, Lisa E Ishii
Importance: Though anecdotally linked, few studies have investigated the impact of facial paralysis on depression and quality of life (QOL). Objective: To measure the association between depression, QOL, and facial paralysis in patients seeking treatment at a facial plastic surgery clinic. Design, Setting, Participants: Data were prospectively collected for patients with all-cause facial paralysis and control patients initially presenting to a facial plastic surgery clinic from 2013 to 2015...
December 8, 2016: JAMA Facial Plastic Surgery
https://www.readbyqxmd.com/read/27929602/facial-reanimation-according-to-the-postresection-defect-during-lateral-skull-base-surgery
#18
John P Leonetti, Sahar Nadimi, Sam J Marzo, Douglas Anderson, Darl Vandevender
The vast majority of benign tumors of the cerebellopontine angle, temporal bone, and parotid gland can be successfully resected without permanent injury to the facial nerve. Malignant tumors or recurrent disease may require facial nerve sacrifice, especially if preoperative facial paresis is present. This article will present case examples of the various methods to reconstruct facial animation after lateral skull base resections that require sacrifice of cranial nerve VII, and the associated mimetic facial musculature...
December 2016: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/27892977/societal-value-of-surgery-for-facial-reanimation
#19
Peiyi Su, Lisa E Ishii, Andrew Joseph, Jason Nellis, Jacob Dey, Kristin Bater, Patrick J Byrne, Kofi D O Boahene, Masaru Ishii
Importance: Patients with facial paralysis are perceived negatively by society in a number of domains. Society's perception of the health utility of varying degrees of facial paralysis and the value society places on reconstructive surgery for facial reanimation need to be quantified. Objective: To measure health state utility of varying degrees of facial paralysis, willingness to pay (WTP) for a repair, and the subsequent value of facial reanimation surgery as perceived by society...
March 1, 2017: JAMA Facial Plastic Surgery
https://www.readbyqxmd.com/read/27757349/cross-face-nerve-grafting-with-infraorbital-nerve-pathway-protection-anatomic-and-histomorphometric-feasibility-study
#20
Joseph Catapano, Daniel R B Demsey, Emily S Ho, Ronald M Zuker, Gregory H Borschel
Smiling is an important aspect of emotional expression and social interaction, leaving facial palsy patients with impaired social functioning and decreased overall quality of life. Although there are several techniques available for facial reanimation, staged facial reanimation using donor nerve branches from the contralateral, functioning facial nerve connected to a cross-face nerve graft (CFNG) is the only technique that can reliably reproduce an emotionally spontaneous smile. Although CFNGs provide spontaneity, they typically produce less smile excursion than when the subsequent free functioning muscle flap is innervated with the motor nerve to the masseter muscle...
September 2016: Plastic and Reconstructive Surgery. Global Open
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