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Biomedical subjects

F Vegter

Publications and source records attributed to F Vegter.

10 recordsLinked to original sources
PubMed2001

Lack of correlation between objective and subjective evaluation of residual stigmata in cleft patients.

The multidisciplinary cleft team of the Academisch Ziekenhuis Vrije Universiteit treats cleft patients until they are 18 years old, when treatment is supposedly complete, with patients having a minimum of residual facial stigmata. The authors evaluated the relationship between objective residual facial deformities present and the patients' subjective judgment of the result of treatment by interviewing 50 patients (age range, 19-25 years) regarding their facial appearance and possible remaining wishes for secondary correction. All patients were subjected to 13 in vivo anthropometric measurements, and 5 inclinations were assessed on lateral facial photographs. The results of these measurements were compared with normal values to establish possible objective deformities. The subjective and the objective results were compared for each individual. Anthropometric evaluation revealed an average of 5.3 divergent measurement values per patient (range, 1-8 divergent values). No correlation was found between objective judgment and the patient's subjective judgment. A weak negative correlation could be demonstrated between the score on a visual analog scale and the wish for secondary correction. Surgeons should be aware that cleft patients have no anthropometric interest in their facial appearance.

Adult↗
PubMed2001

Facial anthropometry in cleft patients: a historical appraisal.

OBJECTIVE: To present a historical appraisal of the use of anthropological and cephalometrical facial soft tissue measurements in cleft patients. DESIGN: The McDowell Indexes and a Medline search were used to trace references up to 1999. Also, references listed with chapters and articles on facial clefts were searched for anthropometrical studies. Twenty-six retrieved articles and book chapters on soft tissue anthropometry and 12 cephalometric publications on soft tissue measurements on radiographs and plaster casts of cleft patients were reviewed. RESULTS AND CONCLUSIONS: Since 1931, the facial soft tissue appearance of cleft patients has been evaluated by means of anthropometric and cephalometric techniques. Not all of the older studies were performed in a statistically correct fashion. Many of the conclusions of the studies overlap despite differences in technique of assessment. Most studies demonstrate the deficient growth of the maxilla and the deformities of the facial profile in cleft patients.

Anthropometry↗
PubMed2000

Clinical anthropometry and canons of the face in historical perspective.

Measurements of the human face as part of the body have been performed since the Greek era, and many aspects of ancient measurements can be found in modern clinical anthropometry. A historical appraisal of the use of facial measurements is presented. The influence on modern facial anthropometry of Greek proportion sciences, the golden proportion, canons of important Renaissance artists, physical anthropology, and cephalometry are discussed. The main difference between human measurements in classic times and modern anthropometry is the denial of realistic sizes and proportions in former times. Human forms and canons were depicted in a way the artist or scientist preferred, rather than how they objectively were. For reconstructive and cosmetic surgery, realistic sizes and proportions are assessed using anthropometric techniques and used as guidelines to correct deformities or disproportions.

Anthropometry↗
PubMed2000

Standardized facial photography of cleft patients: just fit the grid?

OBJECTIVE: The objective results of craniofacial surgery are usually evaluated by comparing pre- and postoperative photographs. To allow for optimal comparison, these photographs should be of constant and reproducible lay-out and quality. For this, various techniques to standardize photography have been suggested. DESIGN, SETTING, AND PATIENTS: A review of the literature on standardization of medical photography is presented. The advantages and disadvantages of standardizing techniques are evaluated. The difficulty to achieve standardization in cleft patients is illustrated using clinical photographs. Our personal protocol is presented as it tries to optimize comparability of photographs. RESULTS: Use of a grid or cephalostat will not lead to comparable photographs in cleft patients. Personal protocols also have shortcomings, but they offer reproducible and comparable results. A personal effort of the photographer is essential to adjust any allegedly standardizing protocol to the individual patient. CONCLUSION: Photographs are only as good as the photographer. True standardization of facial photographs is a utopia in cleft patients.

Cleft Lip↗
PubMed1999

Pierre Robin syndrome: mandibular growth during the first year of life.

Micrognathia and glossoptosis may cause severe respiratory and feeding difficulties in newborns with Pierre Robin syndrome. The growth of the mandible is alleged to more or less "catch up" during the first year of life. We could not objectify such a catch-up growth using the noninvasive and harmless measurement of the jaw index. The jaw index is defined as alveolar overjet x maxillary arch/mandibular arch. The alveolar overjet is the frontodorsal distance between the most anterior points of the upper and lower alveolar arches, whereas the maxillary arch is measured from the left tragus to the right tragus via the subnasal point, and the mandibular arch is measured from the left to the right tragus via the pogonion point. The growth of the mandible in 7 Pierre Robin patients was found to be proportionately similar to that observed in healthy control subjects age 0 months (N = 100), 6 months (N = 42), and 1 year (N = 32).

Case-Control Studies↗
PubMed1998

The lip index: an anthropometric tool to evaluate objectively the result of the Abbe flap procedure.

To evaluate objectively the outcome of the Abbe flap procedure, an anthropometric ratio--the lip index--is introduced. The lip index is the ratio of the labiale superius-tragion to the labiale inferius-tragion. It represents the protrusion of the upper lip in relation to the lower lip. It has been assessed in preoperative and postoperative photographs of 19 patients who underwent an Abbe flap procedure. The values were compared with the values found in noncleft patients. In all 19 patients, postoperative values were found to have normalized. This study indicates that the lips are in better harmony postoperatively than they were preoperatively.

Adolescent↗
PubMed1997

Major residual deformities in cleft patients: a new anthropometric approach.

OBJECTIVE: A new method based on anthropometric ratios and inclinations was evaluated to confirm or reject whether residual deformities in cleft patients' faces differ significantly from faces without previous clefts. DESIGN, SETTING, AND PATIENTS: From a retrospective, a selective review of our clinical files, seven measurements were made on 156 photographs of the faces of 52 patients aged 19 to 25 years. There ratios and two inclination angles were recorded for each patient. RESULTS: The primary hypothesis could be confirmed: the anthropometric ratios and angles used to express major residual deformities in cleft lip and nose patients differ significantly from normal values. CONCLUSION: This new method allows for objective measurement and evaluation of both the stigmata and the outcome of their treatment.

Adult↗