Risk Factors of Fistula Following Primary Palatoplasty

Managing massive palatial defect secondary to palatoplasty failures: an in-depth analysis

PURPOSE OF REVIEW

Massive palatal defects resulting from palatoplasty failures arising from cleft palate repair complications present ongoing challenges in clinical practice. The purpose of this review is to provide up-to-date insights into aetiology, risk factors, surgical techniques, and adjunctive therapies, aiming to enhance the understanding of such complex cases, and optimize patient outcomes.

RECENT FINDINGS

Primary palatoplasty has fistula recurrence rates ranging from 2.4% to 55%. Factors such as cleft width, surgical repair method, and patient characteristics, influence the likelihood of failure. Classifications such as the Pakistan Comprehensive Classification and Richardson's criteria aid in assessing defects. Surgical options range from local flaps and revision palatoplasty to regional flaps (e.g., buccinator myomucosal, facial artery-based flaps, tongue flaps, nasal septal flaps) to free microvascular flaps. Alternative approaches include obturator prostheses, and acellular dermal matrix has been used as an adjuvant to multiple repair techniques. Hyperbaric oxygen therapy has emerged as an adjunctive therapy to enhance tissue healing.

SUMMARY

This comprehensive review underscores the intricate challenges associated with massive palatal defects resulting from palatoplasty failures. The diverse range of surgical and nonsurgical options emphasizes the importance of patient-centric, individualized approaches. Practitioners, armed with evidence-based insights, can navigate these complexities, offering tailored interventions for improved patient outcomes.

"Long term speech outcomes after using the Sommerlad technique for primary palatoplasty: a retrospective study in the Wilhelmina Children's Hospital, Utrecht."

OBJECTIVES

After cleft lip and/or palate (CL/P) repair, children may develop velopharyngeal insufficiency (VPI) leading to speech imperfections, necessitating additional speech correcting surgery. This study examines the incidence of VPI and speech correcting surgery after Sommerlad's palatoplasty for CL/P, and its association with various clinical features.

MATERIALS AND METHODS

A retrospective cohort study was performed in the Wilhelmina Children's Hospital in Utrecht and child records from 380 individuals with CL/P registered from 2008 to 2017 were retrospectively reviewed. Inclusion criteria comprised the diagnosis of CL/P, primary palatoplasty according to Sommerlad's technique, and speech assessment at five years or older. Association between cleft type and width, presence of additional genetic disorders and postoperative complications (palatal dehiscence, fistula) were assessed using odds ratios and chi squared tests.

RESULTS

A total of 239 patients were included. The VPI rate was 52.7% (n = 126) and in 119 patients (49.8%) a speech correcting surgery was performed. Severe cleft type, as indicated by a higher Veau classification, was associated with a significant higher rate of speech correcting surgeries (p = 0.033). Significantly more speech correcting surgeries were performed in patients with a cleft width >10 mm, compared to patients with a cleft width ≤10 mm (p < 0.001). Patients with oronasal fistula underwent significantly more speech correcting surgeries than those without fistula (p = 0.004). No statistically significant difference was found in the incidence of speech correcting surgery between patients with and without genetic disorders (p = 0.890).

CONCLUSIONS/CLINICAL RELEVANCE

Variations in cleft morphology, cleft width and complications like oronasal fistula are associated with different speech outcomes. Future research should focus on creating a multivariable prediction model for speech correcting surgery in CL/P patients.

Comparison of Furlow's Double Opposing Z-plasty and Straight-Line Intravelar Veloplasty as Methods of Cleft Palate Repair

Background One of the common craniofacial abnormalities is cleft lip and palate. Various surgical procedures have been employed to repair the cleft. However, immediate post-operative complications and formation of palatal fistula post surgery are common in surgical procedures. The study aims to compare the fistula rate, soft palate lengthening, and immediate complications of cleft palate repair of Furlow's Z-plasty and straight-line intravelar veloplasty techniques. Method Fifty Patients with isolated or unilateral cleft palate and lip with age between 9-18 months were randomly divided into two groups. One group underwent Furlow's Z-plasty while the other underwent straight-line intravelar veloplasty procedures. Post surgery, after discharge, the patients were followed up at 2 weeks, 1 month, and 3 months intervals. Immediate post-operative complications and fistula formation rate were compared along with other parameters like fistula width, duration of the procedure, intra-operative soft palate length, etc. Results Straight-line procedures took less time as compared to Furlow's Z-plasty. Bleeding (N=2, 8%) and dehiscence (N=1, 4%) of the wound were the immediate post-operative complications found in the straight-line group. Bleeding was also present in the Furlow's group (N=1, 4%). At 1-month follow-up, in the straight-line group (N=3, 12%) patients had fistula while (N=2, 8%) had minimal nasal regurgitation of liquids when compared to the Furlow's group. At 3-month follow-up, patients in the straight-line procedure group (three out of N=25, 12%) exhibited fistula, whereas in the Furlow's group, fistula occurrence was observed in one out of N=25 participants (4%). Intra-operative soft palate lengthening was 6.44 ± 0.768 mm and 1.64 ± 0.952 mm in the Furlow and straight-line groups, respectively. Conclusion Furlow's Z-plasty was observed to be the better surgical procedure for cleft repair as it had low immediate post-operative complications, and fistula development and had higher intra-operative soft palate lengthening.

The Effect of Presurgical Nasoalveolar Molding on Oronasal Fistula Following Primary Palatoplasty

OBJECTIVE

Presurgical nasoalveolar molding (PNAM) is widely used in cleft care protocol. This study investigated the correlation between PNAM and oronasal fistula after primary palatoplasty.

METHODS

A case-controlled study of 80 unilateral and bilateral complete cleft palate patients who underwent cleft palate repair were enrolled. Patients were divided into 2 groups: (1) no PNAM use and (2) PNAM use. The incidence of oronasal fistula and postoperative complications were compared between groups.

RESULTS

Forty patients in each group demonstrated the same baseline characteristics. The PNAM group showed a significantly lower postoperative oronasal fistula rate (15% versus 50%, P=0.003). Palatal cleft width wider than 12.5 mm increases the odds ratio of fistula formation by 1.19-fold (P=0.037), and the PNAM protected against postoperative palatal fistula formation (odds ratio 0.20, P=0.003).

CONCLUSION

Presurgical nasoalveolar molding can reduce postoperative oronasal fistula in wide-gap Veau type III and IV cleft palate.

Incidence of fistula after primary cleft palate repair: a 25-year assessment of one surgeon’s experience

Background

Cleft lip and cleft palate are the most frequent congenital craniofacial deformities, with an incidence of approximately 1 per 700 people. Postoperative palatal fistula is one of the most significant long-term complications. This study investigated the incidence of postoperative palatal fistula and its predictive factors based on 25 years of experience at our hospital.

Methods

We retrospectively reviewed 636 consecutive palatal repairs performed between January 1996 and October 2020 by a single surgeon. Data from patients’ medical records regarding cleft palate repair were analyzed. The preoperative extent of the cleft was evaluated using the Veau classification system, and the cleft palate repair technique was chosen according to the extent of the cleft. SPSS version 25.0 was used for all statistical analyses, and exploratory univariate associations were investigated using the t-test.

Results

Fistulas occurred in 20 of the 636 patients; thus, the incidence of palatal fistula was 3.1%. The most common fistula location was the hard palate (9/20, 45%), followed by the junction of the hard and soft palate (6/20, 30%) and the soft palate (5/20, 25%). The cleft palate repair technique significantly predicted the incidence of palatal fistula following cleft palate repair (P=0.042). Fistula incidence was significantly higher in patients who underwent surgery using the Furlow double-opposing Z-plasty technique (12.1%) than in cases where the Busan modification (3.0%) or two-flap technique (2.0%) was used.

Conclusions

The overall incidence of palatal fistulas was 3.1% in this study. Moreover, the technique of cleft palate repair predicted fistula incidence.