Double-opposing Z-plasty Research Articles

Speech Outcome Audit for Cleft Lip and Palate Patient Population Correlated With Veau Cleft Type, Surgical Repair Technique, and Patient Age

Objective: The objective of this study is to determine speech outcome differences for specific palate repair techniques and correlate these data with patient age at the time of operation. Methods: A retrospective study was conducted on a cohort of consecutive nonsyndromic patients who underwent cleft lip and/or palate repair at the authors' hospital between 2010 and 2020. Only those patients who participated in at least 4 years of follow-up accompanied by audio-video recording were included. The patient cohort was divided into 2 age groups, between 1 year and 2 years of age versus older than 2 years of age. Standardized perceptual speech evaluations and nasopharyngoscopy were performed by the authors' team to detect the presence of velopharyngeal insufficiency. Results: A total of 481 patients were initially evaluated, and 323 of these patients met all inclusion criteria and were subsequently selected for this study. One hundred seventy-two patients (n = 172) underwent palatal surgery using the Bardach 2-flap palatoplasty technique, 47 patients (n = 47) underwent repair through the von Langenbeck palatoplasty technique, 78 patients (n = 78) underwent repair through Veau-Wardill-Killner palatoplasty technique, and 26 patients (n = 26) underwent repair through double-opposing Z-plasty palatoplasty. The rate of residual velopharyngeal insufficiency was statistically similar among all palatoplasty techniques. A comparison between these two age groups revealed that patients younger than 2 years of age showed higher speech outcome success. Conclusion: High rates of speech success are achieved for patients younger than 2 years of age. Speech outcomes success is maximized by proper technique selection in relation to cleft type.

Orthognathic Surgery Rates in Furlow Double-Opposing Z-Plasty Versus Straight-Line Repair: A Review of Three Decades of Experience.

The influence of different surgical techniques on maxillary growth remains unclear. This study investigates the long-term impact of Furlow double-opposing Z-plasty versus straight-line repair (SLR) techniques on midface growth and subsequent orthognathic surgery. Retrospective cohort study. Tertiary children's hospital. This study evaluated patients who underwent primary palatoplasty with Furlow or SLR techniques from 1994-2023. Patients were >14 years old at their most recent follow-up. No interventions were performed. Primary outcomes were orthognathic surgery and orthognathic surgery recommendation rates to correct midface hypoplasia (MFH). Cephalometrics at the time of orthognathic surgery recommendation were traced to validate MFH. In total, 1857 patients underwent palatoplasty, of which 335 met inclusion criteria (49 SLR, 286 Furlow). Average age at last follow-up was 18.5±2.6 years. Patients who underwent Furlow versus SLR showed no significant difference in orthognathic surgery rates (p=0.428) or recommendation for orthognathic surgery rates (p=0.900). Patients recommended to undergo orthognathic surgery had more negative ANB angles (p<0.001) and smaller SNA angles (p<0.001) than patients not recommended for orthognathic surgery, demonstrating maxillary hypoplasia. Upon multivariate regression, patients with Veau III and IV clefts had an increased need for orthognathic surgery, p=0.047 and p=0.008, respectively. Our findings suggest that higher cleft severity contributes to future orthognathic surgery. However, palatoplasty technique did not influence orthognathic surgery rates. Our results provide valuable data when surgeons are considering the impact of palatoplasty technique on sagittal growth restriction.

Assessing the impact of palatal fistula formation and cleft width on speech outcomes following double opposing Z-plasty in patients with cleft palate

This retrospective study investigated the influence of palatal fistula (PF) formation after double opposing Z-plasty (DOZ) on speech outcomes in patients with cleft palate (CP), focusing on cleft width and palatal length as predictors of velopharyngeal insufficiency (VPI). This study included 1117 patients with CP (579 males, 538 females) who underwent DOZ, performed by a single surgeon, between 1988 and 2017. Demographic characteristics, cleft dimensions, history of PF formation, and speech outcomes were investigated. Speech evaluations were performed at a minimum age of five to assess nasal emission, hypernasality, compensatory articulation, intelligibility, necessity for VPI surgery, and speech therapy. Logistic regression analysis was performed. Speech assessments were conducted at the median age of five (interquartile range [IQR], 5-6 years). Overall, 96.5% of patients achieved 'socially acceptable speech' after DOZ. Patients with PF history showed greater cleft width and experienced higher rates of hypernasality, nasal emission, and VPI on videofluoroscopy (VFS) compared to those without PF history (mean, 11.4mm vs. 7.1mm; 28.4% vs. 23.6%; 34.8% vs. 14.9%, 38.5% vs. 14.0%, 40.6% vs. 28.3%, respectively; all p<0.0001). Cleft width was significantly associated with VPI-related speech outcomes in the multivariate logistic regression analysis, affecting both perceptual and VFS-measured outcomes. A wider CP gap significantly increased the risk of VPI-related speech difficulties after DOZ. Cleft width is a more critical predictor of adverse speech outcomes than the presence of small-to-medium-sized PFs. Patients with a history of PF and wider cleft gaps require targeted interventions and intensified follow-up to effectively manage and improve speech outcomes.

Single vs. Double-Opposing Z-Plasty: Evaluating Their Impact on Palatoplasty Postoperative Outcomes.

The double-opposing Z-plasty is a fundamental approach for cleft palate repair. Recently, some surgeons have begun implementing a single Z-Plasty, igniting discussions on the most effective technique for enhancing postoperative outcomes. Consequently, this study sought to evaluate the outcomes of employing single and double Z-plasties within the modified Sommerlad-Furlow technique. 116 cleft palate patients undergoing primary surgical repair were divided into two groups: those treated with the Sommerlad-Furlow method using a double-opposing Z-plasty (S.F.2.Z.P. group, n = 58) and those receiving a single nasal Z-plasty (S.F.1.Z.P. group, n = 58). Data on cleft type and width, soft palate length, palatal fistula, and velopharyngeal function were collected. Mann-Whitney test compared the mean values between groups. The S.F.2ZP group demonstrated a statistically significant increase in soft palate length compared to those in the S.F.1ZP group (p = 0.008). However, the S.F.1ZP group demonstrated adequate soft palate length (7.9 ± 2.8mm) compared to the S.F.2ZP group (9.3 ± 2.8mm). The velopharyngeal function was good in both groups, with no significant differences (P = 0.52). While the proper velopharyngeal closure was 81% in the S.F.1ZP group and 87.9% in the S.F.2ZP group, velopharyngeal insufficiency was 10.3% and 5.2%, respectively. The rates of persistent palatal fistula were 5.2% in the S.F.1ZP group and 3.4% in the S.F.2ZP group, with no significant differences found between both groups (P= 0.64). There were no significant differences in crucial outcomes such as velopharyngeal function and the incidence of persistent palatal fistulas, indicating the effectiveness of both techniques. While the double-opposing Z-plasty demonstrated a statistically significant increase in soft palate length, the a nasal Z-plasty demonstrated adequate soft palate length which sufficiently enables effective velopharyngeal closure. These outcomes suggest that a single Z-plasty is both effective and easy to perform, making it a valuable surgical approach for achieving the desired outcomes.. The current study suggests that although the soft palate may not be as elongated with nasal Z-plasty alone compared to the double Z-plasty, it sufficiently enables effective velopharyngeal closure.

Medial incision approach in modified small double-opposing Z-plasty for Veau II cleft repair

An encouraging outcome was described for the use of modified Furlow small double-opposing Z-plasty (sDOZ) using the medial incision (MIsDOZ) approach in repair of Veau type I cleft palate. This retrospective study assessed early results of using extended indication criterion of MIsDOZ for the management of consecutive non-syndromic patients with Veau II cleft palate treated by a single surgeon. Bardach two-flap plus sDOZ (two-flap approach) or medial incision approach with a tension-driven stepwise application of lateral palatal incisions (soft palate only, von Langenbeck type, or two-flap type) were applied. Surgical (age, cleft width, operative time, hospital stay, and complication)- and auditory-perceptual assessment-related data were collected. Two-flap approach (n = 21) demonstrated a significantly (p < 0.001) increased operative time (132.8 ± 12.2 versus 114.8 ± 19.9 min, respectively) and higher use of lateral incisions (100% versus 44.4%) than medial incision approach (n = 27), with no significant (p > 0.05) difference for age at surgery (13.0 ± 6.1 versus 13.6 ± 5.8 months), cleft width (8.5 ± 4.1 versus 8.7 ± 3.8 mm), hospital stay (1.0 ± 0 versus 1.0 ± 0 day), and complication (0% versus 0%) and hypernasality (9.5% versus 7.4%) rates. In conclusion, the medial incision approach for Veau II cleft repair resulted in reduced need for lateral palatal incision with no increase of complication or hypernasality rates.

Outcomes of Palatoplasty Techniques: A 10-Year Review of Intravelar Veloplasty Compared with Furlow Double-Opposing Z-Plasty Techniques

Outcomes of Palatoplasty Techniques: A 10-Year Review of Intravelar Veloplasty Compared with Furlow Double-Opposing Z-Plasty Techniques

Comparison of Speech Outcomes Between Speech Therapy Only and Double-Opposing Z-Plasty Combined With Speech Therapy in Patients With Submucous Cleft Palate.

The purpose of this study was to compare speech outcomes in patients with submucous cleft palate (SMCP) between speech therapy alone and double-opposing Z-plasty (DOZ) combined with speech therapy. The subjects were 67 patients with SMCP (overt type, 45 males, 22 females), who were divided into the observation group (n=18), the speech therapy group (n=24; duration, 17.8mo), and the DOZ and speech therapy (DOZ-speech therapy) group (n=25; median age at DOZ, 5.3 years, duration, 18.6mo). The median age at initial and final speech assessments were 3 and 5 years. After age, sex, syndromic status, duration of speech therapy, surgery timing, and speech outcomes were investigated, statistical analysis was performed. After tailored interventions, both isolated and non-isolated SMCP patients experienced significant improvements in speech outcomes, including nasal emission, hypernasality, compensatory articulation, and unintelligible speech. Since comparable improvements were observed, there were no significant differences in the final assessments regardless of initial speech issues between the speech therapy group and the DOZ-speech therapy group (all P>0.05). In the DOZ-speech therapy group, the rate of achieving "socially acceptable" speech was 92.3% in isolated cases and 90% in non-isolated cases. Multivariate analysis revealed that DOZ showed a tendency to reduce hypernasality, compensatory articulation, and "unintelligible" speech; syndromic or developmental conditions influenced outcomes in nasal emission and hypernasality; and initial hypernasality and compensatory articulation were correlated with outcomes. Therefore, DOZ surgery could be recommended to resolve hypernasality and compensatory articulation in SMCP patients before speech issues worsen.

Comparison of modified Furlow palatoplasty using small double-opposing Z-plasty and conventional Furlow palatoplasty: A long-term outcome study

BackgroundThe aim of palatoplasty is to create a functional palate to achieve normal speech, while minimizing the postoperative complications. This study aimed to compare the long-term outcome of modified Furlow palatoplasty using small double-opposing Z-plasty (small-DOZ) and conventional Furlow palatoplasty (conventional-DOZ) performed in a single center. MethodsA retrospective review of consecutive patients who underwent Furlow palatoplasty between May 2007 and March 2014 was executed. Non-syndromic patients subjected to palatoplasty prior to 24 months of age and followed-up until at least 9 years of age were included. ResultsA total of 196 small-DOZ and 280 conventional-DOZ palatoplasty patients were eligible in this study. Overall, 14 patients (2.9%) developed oronasal fistula, and 40 patients (8.4%) received velopharyngeal insufficiency (VPI) surgery. In comparisons, oronasal fistula rate was significantly higher in conventional-DOZ (0.5% versus 4.6%, p =0.01), and the VPI prevalence was not significantly different (9.2% versus 7.9%, p =0.62). Patients who developed fistula had significantly higher likelihood of having VPI than patients without oronasal fistula (50.0% versus 7.1%, respectively; p < 0.01), with an odds ratio of 13.0. ConclusionBoth modalities of palatoplasty yielded commendable velopharyngeal function in the long-term follow-up. The small-DOZ with reduced tension facilitated to lower the risk of oronasal fistula.

Preoperative Velopharyngeal Closure Predicts Hypernasality Outcomes of Secondary Furlow Double-Opposing Z-Plasty.

To determine if preoperative velopharyngeal closure percentage (VCP) is predictive of successful Furlow double opposing Z-plasty (DOZP) and subsequently determine the optimal velopharyngeal closure cutoff for successful DOZP. Retrospective study. Tertiary academic center. 110 patients with repaired cleft lip and palate having hypernasality treated with DOZP. Speech videofluoroscopy images were used to obtain the preoperative VCP and other measurements. Changes in hypernasality scores using the Cleft Audit Protocol for Speech-Augmented-Americleft Modification (CAPS-A-AM) rating system were used as the primary outcome measure. A successful DOZP was defined as a postoperative hypernasality score of ≤ 1 or an improvement of 2 or more scores from baseline. A receiver operating characteristic (ROC) curve was calculated to determine preoperative VCP cutoff. There were 110 patients who underwent DOZP for treatment of velopharyngeal insufficiency. Of these patients, 94 (85%) had successful surgery as determined by their postoperative CAPS-A-AM hypernasality score. Preoperative VCP was a statistically significant predictor of successful DOZP (P < .0001). The ROC curve with Youden index (J) determined a cutoff (c*) of 55% preoperative VCP or greater to optimize surgical success rate. Grouping by preoperative VCP showed that surgical success increases directly with preoperative VCP, and patients with low VCP had above a 50% success rate in reducing hypernasality scores. Preoperative VCP was significantly associated with improved hypernasality ratings postoperatively. A preoperative VCP of ≥55% may be used to help predict success of Furlow palatoplasty treatment. Patients with lower VCP can still benefit from secondary DOZP.

Validating the Modified Small Double Opposing Z-Plasty for Palatal Lengthening in Primary Palatoplasty.

To appraise the degree of intraoperative palatal lengthening with the modified Furlow small double-opposing Z-plasty (sDOZ). Retrospective single-surgeon (R.D.) study. Nonsyndromic children (n = 167) with Veau types I to IV cleft palates who underwent primary sDOZ palatoplasty. Intraoperative measurements of palatal lengths and widths were collected using calipers, paper rulers, and metal rulers before the administration of local anesthetic solution and before the removal of the mouth gag (initial and final palatal dimensions, respectively). Assessment of the intraoperative percentage change (difference between final and initial values) in surface palatal length, straight palatal length, and soft palatal length. Bivariate and multivariate analyses were performed to identify independent predictors (sex, age at surgery, Veau, Kernahan/ Stark, and Randall classifications, widest cleft width, presence of lateral relaxing incision, type of coverage with buccal fat flap, and postoperative complications) of soft palatal lengthening. Surface palatal, straight palatal, and soft palatal lengths had an intraoperative increase of 8%, 14.7%, and 27.7%, respectively. The degree of intraoperative soft palatal lengthening significantly varied among Veau cleft types (I = II < III = IV). Veau type III and cleft lip/palate were independent positive predictors (P < .001) of soft palatal lengthening, while other tested variables were not correlated (P > .05) with this outcome. Overall intraoperative palatal lengthening occurs with the modified sDOZ palatoplasty, with differences within the spectrum of cleft palate deformity.

Modified Furlow palatoplasty using small double-opposing Z-plasty: Long-term outcome and comparison with two-flap palatoplasty.

The post-palatoplasty velopharyngeal function needs to be evaluated through long-term follow-up, but such reports are limited in the literature and there has been no consensus as to which surgical technique yields optimal velopharyngeal function with minimum complication rate. This study aimed to evaluate the long-term outcome of the modified Furlow palatoplasty using small double-opposing Z-plasty (small-DOZ). A retrospective review of consecutive patients who received palatoplasty performed by the senior author between January 2000 and March 2014 was conducted. Non-syndromic patients who underwent palatoplasty before the age of 18 months and followed-up until at least 9 years of age were included. Comparisons between the small-DOZ and two-flap methods for soft palate repair were made. A total of 196 small-DOZ and 167 two-flap palatoplasty patients were eligible in the study. Among the small-DOZ palatoplasty patients, 1 patient (0.5%) developed oronasal fistula, and 18 patients (9.2%) received velopharyngeal insufficiency (VPI) surgery (10 patients at preschool age and 8 at nine years of age). Compared with the small-DOZ palatoplasty, the oronasal fistula rate, VPI surgery rate, and the need for myringotomy tube insertion were significantly higher in the two-flap group (p =0.01, <0.01, <0.01, respectively). Patients who developed oronasal fistula had significantly higher likelihood of having velopharyngeal insufficiency (p < 0.01). The small-DOZ provided successful palatal repair with low rates of oronasal fistula and VPI in the long-term. Wound closure under minimal tension facilitated to avoid oronasal fistula. Reconstruction of the functional muscle sling enabled to achieve normal velopharyngeal function with favorable speech outcome and middle ear function.

Impact of palatoplasty techniques on tympanic membrane findings and hearing prognosis in children with cleft palate.

Children with cleft palate (CP) are at high risk of developing otitis media with effusion (OME) due to Eustachian tube (ET) dysfunction. Palatoplasty has been reported to decrease the frequency of middle ear disease and improve ET function, and although various techniques have been developed, there is no consensus on the differences in the impact of different techniques on the middle ear. The purpose of this study was to determine the differential effects of palatoplasty on middle ear function and hearing. We performed a retrospective observational survey of pediatric patients who underwent palatoplasty for CP between June 2010 and October 2018at Tohoku University Hospital. Cases were divided into three groups depending on the palatoplasty procedures performed: the push-back palatoplasty group, the two-flap palatoplasty group, and the Furlow double-opposing Z-plasty group. We examined the differences in clinical characteristics between patients who underwent each procedure. The primary outcome variable was tympanic membrane (TM) findings, and the secondary outcome was hearing test results. Children who underwent the two-flap palatoplasty had a higher tympanostomy tube (TT) insertion rate and a higher total number of TT insertions than those who underwent the Furlow double-opposing Z-plasty or the push-back palatoplasty. The TM retraction rate tended to be lower in the Furlow double-opposing Z-plasty group than in the push-back palatoplasty group or the two-flap palatoplasty group. The hearing test results at the last visit were not significantly different among the three groups. Children who underwent the two-flap palatoplasty had a higher rate of TT insertions, potentially increasing the risk of TM perforation. In contrast, the Furlow double-opposing Z-plasty group had a lower tendency for TM regression, possibly due to improved ET function and reduced incidence of OME. It is important to understand the advantages and disadvantages of each technique before selecting one suitable for the child's cleft and arch width. Additionally, it is important to conduct regular follow-up of TM findings and hearing test results even after palatoplasty.

Two cleft palate simulators of Furlow double-opposing Z- palatoplasty: a comparative study

PurposeThis study aimed to evaluate the efficiency of the porcine tongue for palatoplasty simulation compared to 3D-printed simulators and their surgical education role.Materials and methodsA total of 18 senior cleft surgeons participated in a palatoplasty simulation-based workshop conducted using porcine tongue simulators and 3D-printed simulators. This workshop consisted of a didactic session followed by a hands-on simulation session. Each participant independently used both simulators to perform Furlow double-opposing Z-plasty, which was assessed and scored by senior cleft surgeons using a scoring system including organizational flexibility and ductility, anatomical design simulation, proper incision, proper suturing, and convenience of operation. A paired t test was used for data statistical analysis and a P value < 0.05 was regarded as a statistically significant difference.ResultsAll senior cleft surgeons strongly agreed that the simulation-based workshop was a valuable learning experience, and both simulators were useful and easy to manipulate (P = 1.00). The results of this comparative study showed that a porcine tongue palatoplasty simulator had an effectively significant difference in terms of organizational flexibility and ductility (P = 0.04), and suturing was better than the 3D-printed palatoplasty simulator (P < 0.01). There were no significant differences between the simulators regarding anatomical design simulation (P = 0.76) and incision simulation (P = 0.65).ConclusionBoth porcine tongue simulator and 3D-printed simulator have their unique strengths in surgical education for palatoplasty. Thus, the combined use of a porcine tongue and a 3D-printed cleft palate simulators are efficient as an educational model to practice Furlow double-opposing Z- palatoplasty. The porcine tongue simulators are superior in terms of organizational flexibility, ductility, and suturing simulators, while with the 3D-printed simulator, various palatoplasty techniques can be repeatedly practiced with better-simulated face and oral cavity.

Surgery for Velopharyngeal Insufficiency Following Cleft Palate Repair: An Audit of Contemporary Practice and Proposed Schema of Techniques and Variations.

Surgical treatment of velopharyngeal insufficiency (VPI) includes a wide array of procedures. The purpose of this study was to develop a classification for VPI procedures and to describe variations in how they are performed.Design/participants/setting/outcomes: We completed an in-depth review of the literature to develop a preliminary schema that encompassed existing VPI procedures. Forty-one cleft surgeons from twelve hospitals across the USA and Canada reviewed the schema and either confirmed that it encompassed all VPI procedures they performed or requested additions. Two surgeons then observed the conduct of the procedures by surgeons at each hospital. Standardized reports were completed with each visit to further explore the literature, refine the schema, and delineate the common and unique aspects of each surgeon's technique. Procedures were divided into three groups: palate-based surgery; pharynx-based surgery; and augmentation. Palate-based operations included straight line mucosal incision with intravelar veloplasty, double-opposing Z-plasty, and palate lengthening with buccal myomucosal flaps. Many surgeons blended maneuvers from these three techniques, so a more descriptive schema was developed classifying the maneuvers employed on the oral mucosa, nasal mucosa, and muscle. Pharynx-based surgery included pharyngeal flap and sphincter pharyngoplasty, with variations in design for each. Augmentation procedures included palate and posterior wall augmentation. A comprehensive schema for VPI procedures was developed incorporating intentional adaptations in technique. There was substantial variation amongst surgeons in how each procedure was performed. The schema may enable more specific evaluations of surgical outcomes and exploration of the mechanisms through which these procedures improve speech.

Outcomes of Primary Furlow Double-Opposing Z-plasty for the Treatment of Symptomatic Submucous Cleft Palate.

Submucous cleft palate (SMCP) requires surgical repair if symptomatic. The Furlow double-opposing Z-plasty is the preferred method in Helsinki cleft center. To assess the efficacy and complications of Furlow Z-plasty in the treatment of symptomatic SMCP. This retrospective study reviewed documentation of 40 consecutive patients with symptomatic SMCP who underwent primary Furlow Z-plasty by 2 high-volume cleft surgeons at a single center between 2008 and 2017. Patients underwent perceptual and instrumental evaluation of velopharyngeal function (VPF) by speech pathologists preoperatively and postoperatively. The median age at Furlow Z-plasty was 4.8 years (SD 2.6, range 3.1-13.6). The overall success rate, including postoperative competent or borderline competent VPF, was 83%, and 10% required secondary surgery for residual velopharyngeal insufficiency. The success rate was 85% in nonsyndromic, and 67% in syndromic patients with no significant difference ( P =0.279). Complications arose in only 2 (5%) patients. No children were found to have obstructive sleep apnea postoperatively. Furlow primary Z-plasty is a safe and effective operation for symptomatic SMCP with a success rate of 83% with only 5% rate of complications.

D23. Quarter Century Review of Velopharyngeal Insufficiency Rates between Palatoplasty Techniques among Patients with Robin Sequence

PURPOSE: Children with Robin sequence (RS) have wide U-shaped cleft palates. Following primary palatoplasty, RS patients have high rates of velopharyngeal insufficiency (VPI), often requiring speech-correcting surgery. This study compares VPI rates between palatoplasty techniques among the RS population. METHODS: A retrospective review of patients with isolated RS without concomitant syndromes from 1997-2022 was completed. Clinical and operative data were collected. Surgical techniques were performed by multiple senior surgeons and were categorized as Furlow double-opposing Z-plasty or straight-line palatoplasty. The primary outcome is surgical VPI rates. RESULTS: Upon review, 91 patients were identified to have isolated RS, of which 79 had a concomitant cleft palate. Overall surgical VPI rate was 11.4%. Follow-up time was 6.3±4.8 years (Furlow) and 4.2±4.0 years (straight-line; p=0.0593). Excluding patients with less than two years of follow-up, 35.7% (15/42) of Furlow patients had clinically diagnosed VPI compared to 11.8% (2/17) of the straight-line cohort (p=0.066). No patients in the straight-line cohort required speech-correcting surgery. The Furlow cohort had higher surgical VPI rates (21.4% vs. 0.0%; p=0.038) compared to straight-line. Upon Kaplan-Meier analysis, the 5-year surgical VPI rate was 11.6% and 0.0% for the Furlow and straight-line cohorts, respectively (p= 0.066). CONCLUSION: Our findings suggest the Furlow technique resulted in higher surgical VPI rates than straight-line repair among our RS patients. Though the Furlow technique offers palatal lengthening, this technique may compromise velum function in this wide cleft RS population.

Assessment arch dimensions in children with unilateral cleft lip and palate treated surgically by Furlow double-opposing Z-plasty protocol

Objectives: The present study aimed to analyze the outcomes of Furlow double-opposing Z-plasty techniques and to know the effect of this technique on arch dimensions and also to compare these outcomes with the ordinary technique (pushback technique) and with the control group. Materials and Methods: There are two treatment groups and one control group. Forty-two (20 males and 22 females) patients as a total number of the sample with unilateral cleft lip and palate (UCLP) children were included in this study, 1st group (10 males and 14 females) those treated with Furlow double-opposing Z-plasty performed at the age of 10 weeks repair of the lip, at 10 months closure of soft palate followed by construction of obturator done by an orthodontist, at 6 years of patient`s age a closure of hard palate, 2nd group (10 males and 8 females) treated with pushback technique. Criteria for selecting patients (two treatment groups), those without systemic diseases, cerebral disabilities, or any syndromes. The 3rd group consists of 20 healthy children (10 males and 10 females) those free from systemic diseases, aged 9–10 years old, free from oral habits and with limited or no crowding of teeth. Impressions of the upper arch of the patients were taken and the study model was poured at ages 9–10 years. Measurements include anterior arch width (ARW) or intercanine distance, posterior arch width (PAW) or intermolar distance, and arch depth (Adp). Statistical analysis; after collecting the data SPSS software program (version no. 21 Chicago, Illinois, USA) used for analysis, P ≤ 0.05 will be considered as statistically significant. The data were analyzed for their normal distribution, and a comparison of dental arch dimensions between genders and between the two techniques of surgical repair was tested by independent t-test of samples. Results: Significant larger mean values for arch measurements ARW and Adp for males and Adp for females than with the pushback technique. This is related to the growth pattern that occurred without surgical intervention. Conclusion: An improvement in surgical outcomes, and the patients with UCLP treated with Z-plasty technique, revealed an increase in the mean values of arch measurements (anterior and PAW and Adp) for both genders when compared to the pushback technique, but less than that of healthy non-cleft children.

The Impact of Lateral Relaxing Incision on Middle Ear Function in Cleft Palate Repair.

Children with cleft palate are susceptible to otitis media with effusion. This study aimed to investigate the effect of lateral relaxing incision (RI) on middle ear function in cleft palate patients who underwent palatoplasty using double-opposing Z-plasty (DOZ). This is a retrospective study of patients who underwent bilateral ventilation tube insertion concurrently with DOZ, wherein RI was selectively performed on the right side of the palate (Rt-RI group) or not (No-RI group). The frequency of VTI, duration of the first ventilation tube retention, and hearing outcomes at the last follow-up were reviewed. Outcomes were compared using the χ 2 test and t test. A total of 126 treated ears from 63 non-syndromic children (18 male, 45 female) with cleft palate were reviewed. The mean age at surgery was 15.8±6.17 months. There were no significant differences in the frequency of ventilation tube insertion between the right and left ears within the Rt-RI group or between the Rt-RI and no-RI groups in the right ear. Subgroup analysis for ventilation tube retention time, auditory brainstem response thresholds, and air-conduction pure tone averages showed no significant differences. In the DOZ, the use of RI had no significant effects on middle ear outcomes during 3 years of follow-up. Relaxing incision seems to be safe without concern for middle ear function in children with cleft palate.

Is There a Relationship between Palatal Asymmetry and Speech in Children with Isolated Cleft Palate after Double-Opposing Z-Plasty?

Although some cleft palates show asymmetric palatal shelf length and/or width intraoperatively, the relationship between palate asymmetry and speech outcomes has not been fully investigated. This study retrospectively reviewed 234 patients who underwent double-opposing Z-plasty (DOZ) for isolated cleft palate (Veau class I and II). Speech outcomes were analyzed to evaluate the association with width and length discrepancy of the palatal shelves using multiple logistic regression adjusting for patient age. The mean age at repair was 14.2 ± 5.26 months. The mean palatal shelf width and length differences were 0.87 ± 0.97 mm and 1.63 ± 1.61 mm, respectively. The mean age at initial and follow-up assessment was 37.6 ± 5.70 months ( n = 234) and 66.2 ± 8.81 months ( n = 120), respectively. Multivariate logistic regression analysis of initial speech outcomes showed odds ratios in width discrepancy of 1.67 ( P = 0.0703), 1.59 ( P = 0.0104), and 2.01 ( P = 0.0051) for nasal emission, hypernasality, and compensatory articulation, respectively. Additional analysis including follow-up outcomes also revealed that width discrepancy of the palatal shelves had higher odds ratios for nasal emission, hypernasality, and compensatory articulation (OR, 1.49, P = 0.0406; OR, 1.36; P = 0.0660; and OR, 1.65; P = 0.0170, respectively). There was no association between length discrepancy and all speech abnormalities. Greater discrepancies in palatal shelf width, rather than in length, were associated with poorer speech outcomes after DOZ. The authors suggest that DOZ is effective for longitudinally asymmetric cleft palates. Risk, III.

The pilot study of a blended learning module using porcine tongue for surgical simulation of double-opposing Z-plasty.

Simulation course serves as an efficient supplement to the experiential learning inside the operation room in surgical residency programs. Furlow double-opposing Z-plasty (DOZ) remains an important and challenging surgical technique in cleft palate repair, but the simulation is currently limited. This study aims to develop a blended learning module with low-cost and easy-to-promote DOZ simulation. Comparison among the common rodent experimental animals and the readily available porcine tongue was made to select the ideal animal for surgical simulation, with which a DOZ learning module was developed. Oral surgery residents were enrolled to attend the blended learning module. An after-session questionnaire and a quiz were distributed to the participants to collect their feedback of the course perceptions and to assess their learning outcomes. The porcine tongue had more advantages in simulating the human soft palate over the common experimental animals. The surgical procedure of DOZ could be well designed and simulated on the porcine tongue. The vast majority of the participant liked the learning module regarded it as beneficial for the comprehension if DOZ principles and procedures. With the help of the porcine tongue simulator, the blended learning module helped the participants grasp the designing principles of DOZ procedure and promote their associative learning. The blended learning module incorporating the porcine tongue simulator can help oral surgery residents master the principles and procedures of DOZ palatoplasty.