Publications by authors named "Moshe Kon"

A cleft lip and/or palate (CL/P) is one of the most common craniofacial malformations, occurring worldwide in about one in 600-1000 newborn infants. CL/P is known to influence the feeding process negatively, causing feeding difficulties in 25-73% of all children with CL/P. Because there is a risk for serious complications in these children regarding feeding difficulties, there is often a need for intensive medical counseling and treatment.

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Article Synopsis
  • Researchers identified auricular cartilage progenitor cells in both healthy cartilage and in patients with microtia, highlighting their potential in regenerative medicine.
  • These cells show a strong ability to proliferate and maintain their differentiation potential while producing cartilage-like matrix when cultured in a gelatin-based hydrogel.
  • The ease of obtaining these progenitor cells from non-deforming biopsies makes them a promising solution for improving auricular cartilage tissue engineering.
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The functional and sociocultural role of the auricle has been prevalent in art, literature and history for millennia. It is no surprise, therefore, that auricular anomalies can be associated with affective disorders and impaired academic performance in children. The challenge of auricular reconstruction has captured the attention of surgical innovators for millennia with the earliest records of auricular reconstruction documented in the Edwin Smith Surgical Papyrus dating back to 3000 BCE.

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Objectives: The prenatal diagnosis of oral clefts (OCs) by ultrasound can pose an ethical dilemma. The purpose of this study was to obtain insight into the psychosocial and moral considerations of prospective parents concerning OCs, the burden of OCs and parents' attitude toward possible termination of pregnancy (TOP) in order to improve counseling in the future.

Design: Between August 2011 and August 2014, a prospective cohort questionnaire study was administered.

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Background: No consensus exists on the optimal treatment protocol for orofacial clefts or the optimal timing of cleft palate closure. This study investigated factors influencing speech outcomes after two-stage palate repair in adults with a non-syndromal complete unilateral cleft lip and palate (UCLP).

Methods: This was a retrospective analysis of adult patients with a UCLP who underwent two-stage palate closure and were treated at our tertiary cleft centre.

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Background: The limited cranial skin covering auricular implants is an important yet underrated factor in auricular reconstruction for both reconstruction surgery and tissue engineering strategies. We report exact measurements on skin deficiency in microtia patients and propose an accessible preoperative method for these measurements.

Methods: Plaster ear models (n = 11; male:female = 2:1) of lobular-type microtia patients admitted to the University Medical Center Utrecht in The Netherlands were scanned using a micro-computed tomographic scanner or a cone-beam computed tomographic scanner.

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Article Synopsis
  • Patients with Robin sequence (RS) experience higher feeding difficulties (FD) compared to those with isolated cleft palate, with 91% of RS infants having FD, leading to more reliance on nasogastric tube feeding.
  • The study showed that RS infants had lower growth rates than isolated cleft palate (iCPO) infants, and while airway management type didn't impact growth, the type of surgical intervention did.
  • The findings highlight the importance of early identification and treatment of feeding issues in RS infants to promote better growth outcomes and the necessity for ongoing monitoring.
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Acquired auricular deformities may diminish facial esthetics and cause psychological distress. The aim of this article is to provide an overview of the type of injuries and applied reconstructive techniques in a large academic hospital in The Netherlands. A retrospective chart review was conducted for the last 105 patients who underwent auricular reconstruction for an acquired deformity.

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Recent advances in regenerative medicine place us in a unique position to improve the quality of engineered tissue. We use auricular cartilage as an exemplar to illustrate how the use of tissue-specific adult stem cells, assembly through additive manufacturing and improved understanding of postnatal tissue maturation will allow us to more accurately replicate native tissue anisotropy. This review highlights the limitations of autologous auricular reconstruction, including donor site morbidity, technical considerations and long-term complications.

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Background: Mandibular distraction osteogenesis with a unidirectional resorbable device is an effective treatment option for severe upper airway obstruction in infants with Robin sequence. Long-term effects, especially with regard to tooth development and mandibular outgrowth, are not known.

Methods: Robin sequence infants with a follow-up of greater than or equal to 5 years were included.

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Introduction: While options for treatment strategies for infantile hemangiomas (IH) are numerous, evidence-based information about agents, optimal dosage, adverse effects, treatment modality, pretreatment and treatment strategies remain limited.

Areas Covered: To evaluate side effects and adverse events of medical treatment in children with infantile hemangioma, a comprehensive review of the literature was performed to provide information for daily practice. In total 254 studies were retrieved from medical databases and comprised 10,022 patients divided into 5 different treatment groups.

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Background: Traumatic arm amputations can be treated with replantation or surgical formalization of the stump with or without subsequent prosthetic fitting. In the literature, many authors suggest the superiority of replantation. This systematic review compared available literature to analyze whether replantation is functionally and psychologically more profitable than formalization and prosthetic fitting in patients with traumatic arm amputation.

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Objective: Our aim is to introduce and validate a new oral cleft classification system based on prenatal ultrasound for use by professionals in daily practice.

Methods: During a 3-year period (2011-2014), all cases of prenatal oral cleft diagnosed by ultrasound were retrospectively reviewed. A new prenatal ultrasound classification system was introduced.

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Purpose: To investigate the influence of nerve decompression at potential entrapment sites in the lower extremity in painful diabetic polyneuropathy on nerve conduction study variables.

Methods: Forty-two patients with painful diabetic polyneuropathy were included in this prospective randomized controlled trial. Preoperative nerve conduction studies were performed bilaterally.

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Objectives: Initial approaches to and treatments of infants with Robin sequence (RS) is diverse and inconsistent. The care of these sometimes critically ill infants involves many different medical specialties, which can make the decision process complex and difficult. To optimize the care of infants with RS, we present our institution's approach and a review of the current literature.

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Objective: The aim of this study was to assess the opinion of obstetric care providers who perform prenatal ultrasounds to screen for anomalies and who advise women about their options, including termination of pregnancy, when an oral cleft is detected. We compared providers' opinions about pregnancy termination for isolated oral cleft in The Netherlands, where the number of terminations is low, and in Israel, where the number is high.

Methods: Online questionnaires were used.

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Purpose: To provide a systematic review of randomized controlled trials regarding the conservative treatment of thumb base osteoarthritis (OA).

Methods: A systematic literature search was conducted in the electronic bibliographic databases Medline (Pubmed) and Embase (both starting year to May 2014) using predetermined criteria for studies on nonoperative treatment of thumb base OA.

Results: Twenty-three articles fulfilled our inclusion criteria.

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Objective: To investigate the effect of decompression of nerves in the lower extremity in patients with painful diabetic polyneuropathy on static balance using a sensitive pressure mat system.

Design: Non-blinded randomized controlled trial.

Setting: Single center study performed at the University Medical Center Utrecht between 2010-2013.

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Background: Speech problems are a common clinical feature of the 22q11.2 deletion syndrome. The objectives of this study were to inventory the speech history and current self-reported speech rating of adolescents and young adults, and examine the possible variables influencing the current speech ratings, including cleft palate, surgery, speech and language therapy, intelligence quotient, and age at assessment.

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Background: An abnormally obtuse cranial base angle, also known as platybasia, is a common finding in patients with 22q11.2 deletion syndrome (22q11DS). Platybasia increases the depth of the velopharynx and is therefore postulated to contribute to velopharyngeal dysfunction.

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Background: The "TOMAX" (TO MAX-imize sensation, sexuality, and quality of life) procedure restores genital sensation in men with low spinal lesions, improving sexual health, as shown previously. It connects the dorsal nerve of the penis to the intact ipsilateral ilioinguinal nerve, unilaterally or bilaterally. This study reports on the technical aspects based on 43 TOMAX nerve transfers.

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