Publications by authors named "Jyri Hukki"

Background: Deformational plagiocephaly is usually managed conservatively, as it tends to improve over time and with the use of conservative measures. However, before the year 2017 we operated on patients with severe plagiocephaly and neurological symptoms at the Helsinki Cleft Palate and Craniofacial Center.

Methods: Of the 20 infants with severe deformational plagiocephaly and neurological symptoms referred to us between 2014 and 2016, 10 underwent cranioplasty open reshaping of the posterior cranial vault.

View Article and Find Full Text PDF

Background And Aims: Between 1997 and 2014, 3 protocols have been used in out cleft unit for primary repair of unilateral cleft lip and palate. During the Scandcleft randomized controlled trial closing the soft palate and lip at 4 months and the hard palate at 12 months (Protocol 1) was compared with closing the entire palate at 12 months (Protocol 2). Protocol 3 comprises closure of the lip and hard palate with a vomer flap at 4 months and the soft palate at 10 months.

View Article and Find Full Text PDF

Background And Aims: Longstanding uncertainty surrounds the selection of surgical protocols for the closure of unilateral cleft lip and palate, and randomised trials have only rarely been performed. This paper is an introduction to three randomised trials of primary surgery for children born with complete unilateral cleft lip and palate (UCLP). It presents the protocol developed for the trials in CONSORT format, and describes the management structure that was developed to achieve the long-term engagement and commitment required to complete the project.

View Article and Find Full Text PDF

Background: Longstanding uncertainty surrounds the selection of surgical protocols for unilateral cleft lip and palate, and randomised trials have only rarely been performed. The Scandcleft Project consists of three trials commenced in 1997 involving ten centres in Denmark, Finland, Norway, Sweden, and the UK. Three groups of centres tested a newly-defined common technique for palatal repair (Arm A) against their local protocols (Arms B, C, D).

View Article and Find Full Text PDF

The differential diagnostics between the common positional posterior plagiocephaly and relatively rare lambdoid synostosis is important due to the differences in their treatment plan and clinical management. However, the clinical criteria for the diagnosis of lambdoid synostosis are not clear since there is a considerable overlap in the features of positional posterior plagiocephaly and unilateral lambdoid synostosis. To systematically evaluate the clinical findings in these 2 patient groups, we quantitatively compared the characteristics of endocranial skull base and ectocranial calvarium in 3D computed tomography, in 9 children (mean age 2.

View Article and Find Full Text PDF

Objectives: This study aims to compare pre- and postoperative cephalic indexes (CI) with corresponding segmented intracranial volumes (SIV) obtained from volumetric CT in scaphocephalic patients.

Methods: Twenty-four patients (17 boys) who had undergone cranial vault remodeling due to scaphocephaly were compared from 3D-CT imaging datasets. The mean age of the patients at preoperative CT imaging was 5.

View Article and Find Full Text PDF

Six-year-old children with bilateral cleft lip and palate (BCLP) were examined to evaluate the need for orthognathic surgery later in life and to cephalometrically compare the craniofacial morphology of those needing orthognathic surgery with those not needing surgery. Design Retrospective longitudinal study. Patients Thirty-eight consecutive nonsyndromic patients with BCLP (29 boys).

View Article and Find Full Text PDF

Purpose: Craniosynostosis may lead to reduced intracranial volume (ICV) and disturb normal brain growth and development. Thus, ICV is an important parameter with respect to the surgical outcome. Current methods for ICV determination from computed tomography (CT) images have drawbacks.

View Article and Find Full Text PDF

Purpose: This study examined early language acquisition in children with single suture craniosynostosis (SSC) and in children with deformational posterior plagiocephaly. Our purpose was to determine whether infants with SSC have normal language acquisition at the age of 3 years, and whether infants with deformational posterior plagiocephaly demonstrate parallel development when compared with children with SSC.

Methods: The study population includes 61 infants.

View Article and Find Full Text PDF

Craniosynostosis consists of a premature fusion of the sutures in an infant skull that restricts skull and brain growth. During the last decades, there has been a rapid increase of fundamentally diverse surgical treatment methods. At present, the surgical outcome has been assessed using global variables such as cephalic index, head circumference, and intracranial volume.

View Article and Find Full Text PDF

Craniosynostosis consists of a premature fusion of the sutures in an infant skull, which restricts the skull and brain growth. During the last decades there has been a rapid increase of fundamentally diverse surgical treatment methods. At present, the surgical outcome has been assessed using global variables such as cephalic index, head circumerence and intracranial volume.

View Article and Find Full Text PDF

Purpose: To determine the long-term outcomes of maxillary distraction osteogenesis (DO) on skeletal and dental structures of growing children with cleft lip and palate.

Patients And Methods: Severe maxillary deficiencies were treated with a rigid external distractor device followed by a consolidation period. Preoperative and postoperative orthodontic treatment lasted a mean of 14 months and 16 months, respectively.

View Article and Find Full Text PDF

Purpose. We describe a case of 3-year-old girl with rhombencephalosynapsis, a rare cerebellar anomaly. Patient.

View Article and Find Full Text PDF

Introduction: This study was designed to determine the incidence of Chiari malformation (CM) in nonsyndromic single suture craniosynostosis (N-SSSC).

Materials And Methods: A retrospective analysis of brain magnetic resonance imaging (MRI) studies of children undergoing craniofacial surgery during 1 January, 2004-31 March, 2009 in Cleft Palate and Craniofacial Centre, Department of Plastic Surgery, Helsinki University Hospital, Helsinki, Finland, was conducted.

Results And Discussion: One hundred twenty-four N-SSSC patients were imaged using brain MRI.

View Article and Find Full Text PDF

In this paper, the use of magnetoencephalography (MEG) in studying the basic auditory skills in infants and children is reviewed. The auditory skills are related to perceiving sound onsets and offsets of sounds, extracting rules and regularities in sound environments, perceiving differences and changes in sounds, categorizing sound elements, allocating attention towards certain sounds or sound streams, and attaching semantic information into sounds. Studying each of these auditory skills with MEG in particular stimulation paradigms is shortly reviewed, including two examples of data sets in children.

View Article and Find Full Text PDF

Craniosynostosis, premature suture fusion, is one of the most common craniofacial anomalies affecting approximately 1 in 2,500 live births. Craniosynostosis is most commonly an isolated (nonsyndromic) condition with the sagittal suture being the most commonly affected suture. In this review we describe the range of isolated synostoses and show how these can lead to a variety of different morphological and functional abnormalities.

View Article and Find Full Text PDF

In Finland, 3 patients have been diagnosed with Nager syndrome (NS) during the last 17 years. Thus the incidence for NS in Finland is 3:1,000,000. The craniofacial structures and dental development of these patients were studied clinically and radiographically at the age of 3-4 years, and compared to age-matched controls and to the norms of the Finnish population.

View Article and Find Full Text PDF

The interferon regulatory factor 6 gene (IRF6) has been identified as the major Van der Woude (VWS) syndrome and popliteal pterygium (PPS) syndrome gene with mutations in the majority of the kindreds. We have studied altogether 17 kindreds from Sweden, Finland, Norway, Thailand and Singapore, and report here 10 mutations, six of them previously unseen. In two kindreds, we could document de novo mutations, both of them changing a codon for a glutamine residue to a stop.

View Article and Find Full Text PDF

Various unexpected events during mandibular distraction osteogenesis are described in 16 syndromic children with severely retrognathic or asymmetric lower jaws who were treated with unilateral or bilateral extraoral distraction. The mean total time with the distraction devices attached was 14 weeks (range 10-19). Although improvement in facial aesthetics and the desired occlusion was achieved in all but one case, there were unexpected events associated with mandibular distraction.

View Article and Find Full Text PDF

The purpose of this article is to report the case of a 10-year-old girl born with anophthalmia, bilateral oblique facial clefts, and missing scalp and bones over the temporal and parietal areas of the cranial vault bilaterally. Early amnion rupture seems to be the most probable cause of this rare combination of anomalies. Because no similar case has been reported in the literature so far, we describe here the clinical and psychosocial history of this unusual patient, who has been able to live the intellectually and socially normal life of a blind child in spite of the major craniofacial deformities.

View Article and Find Full Text PDF

Fifty patients with clefts (30 unilateral cleft lip and palate (UCLP), 9 bilateral cleft lip and palate (BCLP), and 11 cleft palate only (CP), mean age 25 years) treated with Le Fort I osteotomy were compared retrospectively from cephalograms taken shortly before operation, and at six months and one year postoperatively. Patients with bimaxillary surgery or previous velopharyngoplasty, or both, were excluded. Maxillary advancement was moderate in all groups.

View Article and Find Full Text PDF

The craniofacial morphology of 48 consecutive adult males with isolated cleft palate was studied by means of lateral cephalograms at the mean age of 18.8 years. Twelve of the patients had received pharyngeal flap surgery between 4 and 12 years of age (mean age 6 years) to improve speech.

View Article and Find Full Text PDF

Cleft palate is a common birth defect, but its etiopathogenesis is mostly unknown. Several studies have shown that cleft palate has a strong genetic component. Robin sequence consists of three of the following four findings: micrognathia, glossoptosis, obstructive apnea, and cleft palate.

View Article and Find Full Text PDF

A new surgical approach for performing the mandibular osteotomy for distraction osteogenesis is described. In order to minimize trauma to bone caused by the osteotomy - and adjacent soft tissue - caused by excessive stretching - an additional transbuccal pinhole incision is made. The shaft of the saw blade is passed through this incision.

View Article and Find Full Text PDF

Pharyngeal changes after Le Fort I osteotomy were evaluated cephalometrically in 37 patients (27 M, 10 F; mean age 23.8 years) with unilateral cleft lip and palate (UCLP). Seven patients had previously undergone velopharyngeal (VPP) flap surgery to improve speech.

View Article and Find Full Text PDF