Gender differences in perceived speech intelligibility in patients with facial nerve palsy.

PURPOSE: Facial nerve palsy (FNP) affects physical and social function, including speech. There exists discrepancy between professional and patient perception of appearance following FNP; however, speech differences remain unknown. We aimed to compare ratings of speech intelligibility by different listeners. METHOD: Patients were identified through the Sydney Facial Nerve Service. FNP related scoring was obtained using the Sunnybrook Facial Grading System, Sydney Facial Grading Score, Facial Disability Index, and Speech Handicap Index. Intelligibility was scored by a speech-language pathologist, member of the public, and patient using a standardised passage. FNP scoring and intelligibility were compared using interclass coefficients (ICC). RESULT: Forty patients were recruited (females = 20). There was no difference in FNP scoring, nor between the frequency or types of phonemic errors. Observers' rating of intelligibility had an ICC of 0.807, compared with 0.266 and 0.344 for patients compared to the member of the public and speech-language pathologist respectively. Observers rated males and females intelligibility similar (p > 0.05), but females rated their intelligibility lower than males (74.5 ± 12.8 vs. 82.5 ± 8.4, p = 0.025). CONCLUSION: Patients, particularly females, perceive their speech to be less intelligible than observers. Clinicians should be aware of this discrepancy, which does not correlate with physical function.

Validation of a risk prediction calculator in Australian patients undergoing head and neck microsurgery reconstruction.

BACKGROUND: The American College of Surgeons (ACS) National Surgical Quality Improvement Program (NSQIP) surgical risk calculator (SRC) is an open access calculator predicting patients' risk of postoperative complications. This study aims to assess the validity of the SRC in patients undergoing microsurgical free flap reconstruction at an Australian tertiary referral centre. METHODS: This is a retrospective cohort study of 200 consecutive patients treated up to November 2020. SRC-predicted rates of postoperative complications and hospital length of stay (LOS) were compared to those observed for the ablative and reconstructive components of the procedure. The performance of the SRC was assessed using Brier scores, area under the receiver operating characteristic (ROC) curve (AUC), and the Hosmer-Lemeshow test. RESULTS: For both ablative and reconstructive components, the SRC discriminates well for pneumonia and urinary tract infection, and it is calibrated well for readmission and sepsis, but it does not discriminate and calibrate well for any single outcome. SRC-predicted hospital LOS and actual LOS did not correlate well for the reconstructive component, but they correlated strongly for the ablative component. CONCLUSIONS: The SRC is a poor predictor of postoperative complication rates and hospital LOS in patients undergoing head and neck microsurgical reconstruction.

Health-related quality of life in maxillectomy patients undergoing dentoalveolar rehabilitation.

OBJECTIVES: Surgical resection of the maxilla impairs aesthetics, speech, swallowing, and mastication. Maxillary reconstruction is increasingly performed with virtual surgical planning (VSP) to enhance functional dental rehabilitation with a conventional denture or osseointegrated implants. The aim of this study was to determine whether dental status and VSP is associated with health-related quality of life (HRQOL) and function in patients who have undergone maxillectomy. MATERIALS AND METHODS: A cross-sectional study was conducted among patients who underwent free flap reconstruction or obturation of the maxilla between July 2009 and December 2020. The FACE-Q Head and Neck Cancer (FACE-Q) module, M.D. Anderson Dysphagia Inventory (MDADI), and Speech Handicap Index (SHI) were used to evaluate HRQOL. RESULTS: Forty-three patients (response rate 59%) completed questionnaires and 48% underwent dental rehabilitation. In Okay Class II and III defects, adjusting for the effect of radiotherapy and time from surgery, there was a positive association between denture status and FACE-Q smiling (p = 0.020), eating (p = 0.012), smiling (p = 0.015), and MDADI global (p = 0.015), emotional (p = 0.027), functional (p = 0.028), and composite (p = 0.029) scores. VSP was associated with FACE-Q swallowing (p = 0.005), drooling (p = 0.030), eating (p = 0.008), smiling (p = 0.021), MDADI global (p = 0.017), emotional (p = 0.041), functional (p = 0.040), composite (p = 0.038), and SHI total scores (p = 0.042). CONCLUSIONS: Dentoalveolar rehabilitation and VSP were associated with higher HRQOL scores relating to eating and drinking, smiling, and speaking.

Facial nerve paralysis: A review on the evolution of implantable prosthesis in restoring dynamic eye closure.

Facial nerve paralysis (FNP) is a debilitating condition that leaves those affected with disfigurement and loss of function. The most important function of the facial nerve is protecting the eye through eye closure and blinking. A series of reanimation techniques have been reported to restore dynamic function in FNP, but the lack of a universally accepted method that is reliable and reproducible with immediate effect has led to the introduction of several implantable devices. Most of these devices have been applied to assist blinking; however, the delicate anatomy and unique mechanics of eye closure are difficult to replicate. Lid loading is the most frequently used implant today, which is a passive device that can aid in volitional eye closure but has a limited effect on blinking. Dynamic action can be achieved with active prostheses but achieving successful long-term function remains elusive. Device action must also be coupled with a real-time feedback mechanism in order to capture the natural variation in facial muscle movements. This review discusses all prostheses used for restoring eye closure and blinking to date and explores their relative merits.

Recreation of eyelid mechanics using the sling concept✰.

BACKGROUND: Paralytic lagophthalmos causes major functional, aesthetic and psychological problems in patients with facial paralysis. The Bionic Lid Implant for Natural Closure (BLINC) project aims to restore eyelid function using an implanted electromagnetic actuator combined with an eyelid sling. The authors performed a preliminary study using cadaveric heads to investigate the optimal application of an eyelid sling in various configurations around the orbit. METHODS: The sling was tested in a cadaveric sheep head using 2 medial anchor points and 4 lateral ostectomy points. An impulse was generated using gravitational force to test each combination of medial and lateral sling insertion sites using weights between 10 and 50 g. Each generated blink was recorded and analysed. The final result was validated in a human cadaveric model. RESULTS: The maximum amount of eye closure and closure speed displayed in sheep were 83.7 ±â€¯9.4% of total closure and 70.6 ±â€¯6.9 mm/s at a maximum force of 490 mN, respectively. The 2 inferior lateral attachments performed better at displacing the eyelid than the superior attachments. The position with the highest degree of eye-closure (improvement of 21.6%, p < 0.001) and speed (improvement of 30.4 mm/s, p < 0.001) was the combination of a posterior medial attachment and an inferior-posterior lateral attachment, which resulted in a near physiological closure in human cadaver. CONCLUSION: Closure improved with an inferior lateral position due to increased force acting in the direction of closure. Posterior positioning increases force acting radially, towards the centre of eyelid movement. The latter directs the closure force to effectively move the eyelid around the curved globe.

Time and cost-analysis of virtual surgical planning for head and neck reconstruction: A matched pair analysis.

OBJECTIVES: Virtual surgical planning (VSP) uses patient-specific modelling of the facial skeleton to provide a tailored surgical plan which may increase accuracy and reduce operating time. The aim of this study was to perform a time and cost-analysis comparing patients treated with and without VSP-technology. MATERIAL AND METHODS: A retrospective analysis of 138 patients undergoing microvascular free flap mandible (76.8%) or maxillary (23.2%) reconstruction between 2010 and 2018 was performed. The cohort was divided into two groups according to reconstruction-approach: non-VSP and proprietary-VSP (P-VSP). Cost-analysis was performed comparing non-VSP and P-VSP by matching patients according to site, bone flap, indication, complexity and age. RESULTS: Fibula, scapula and iliac crest free flaps were used in 92 patients (66.7%), 33 patients (23.9%) and 13 patients (9.4%), respectively. Eight patients (5.8%) required revision of the microvascular anastomosis, of which four flaps were salvaged giving a 2.9% flap failure rate. P-VSP was associated with shorter median length of stay (LOS) (10.0 vs 13.0 days, p = 0.009), lower mean procedure time (507.38 vs 561.75 min, p = 0.042), and similar median total cost ($34939.00 vs $34653.00, p = 0.938), despite higher complexity (2.0 vs 1.0, p = 0.09). In the matched-series, P-VSP was associated with a similar median LOS (10.5 vs 11 days), lower mean procedure time (497 vs 555 min, p = 0.231), lower mean total cost ($35,493 v $37,345) but higher median total cost ($35504.50 vs $32391.50, p = 0.607), although not statistically different. CONCLUSION: VSP-technology represents a helpful surgical tool for complex reconstructions, without adversely impacting on the overall-cost of treatment.

Treatment for oral squamous cell carcinoma: Impact of surgeon volume on survival.

BACKGROUND: The volume-outcome relationship is a well-known phenomenon in surgical oncology. The aim of this study was to quantify the impact of surgeon volume on the treatment outcome of oral squamous cell carcinoma (OSCC) patients. METHODS: All new OSCC cases treated with curative intent between 2008 and 2013 were included. A heterogeneous set of predictor variables was collected, including patient, tumour and treatment factors. The outcomes of interest were recurrence-free survival (RFS), overall survival (OS) and disease-specific survival (DSS). To investigate the cut-off in surgeon volume, the number of OSCC resections was analysed in multiplies of 5 cases per annum according to DSS, using univariable regression analysis. RESULTS: 534 cases were recruited. Independently, the negative predictors for patient survival were age, perineural invasion, worsening tumour staging, and extracapsular spread. High-volume surgeon was determined to be most significant at 20 cases per annum and significantly associated with improved RFS (HR: 0.67), OS (HR: 0.44), and DSS (HR: 0.39). CONCLUSIONS: Results from this study support the rationalisation of OSCC management at high-volume centres and in the hands of experienced surgeons for better patient survival. Head and neck surgeons should perform a minimum of 20 OSCC cases per year to maintain competency in OSCC ablation.

Tumor classification for early oral cancer: re-evaluate the current TNM classification.

BACKGROUND: We hypothesized that incorporation of tumor thickness into the tumor-node-metastasis (TNM) system will provide better prognostic information. Tumors were reclassified as T1 if ≤5-mm thick/≤4-cm diameter, and T2 if >5-mm thick/≤4-cm diameter. METHODS: A retrospective analysis was conducted of 322 patients with T1 and T2 oral squamous cell carcinoma (SCC) between 1987 and 2012. Univariable survival analysis was performed using the log-rank test and multivariable analysis using the Cox proportional hazards model. RESULTS: Multivariable analysis confirmed that tumor thickness is the most important predictor of disease-specific survival (DSS; hazard ratio [HR], 2.7; p = .03) and overall survival (OS; HR, 2.9; p = .001). Using the current TNM classification system, there is no significant difference in survival between the T1 and T2 groups for DSS (p = .13) or OS (p = .66). The revised staging system was superior at stratifying patients according to the T classification for both DSS (p = .016) and OS (p < .001). CONCLUSION: Tumor thickness is an important prognostic indicator in early oral SCC and should be incorporated in the TNM classification system.