Biomedical subjects

J Ascherman

Publications and source records attributed to J Ascherman.

3 recordsLinked to original sources

PubMed2001

Cranial reossification with absorbable plates.

The purpose of this study was to examine the effect of Lactosorb absorbable plates on bone healing across cranial bone defects in the rabbit skull. Two 10-mm diameter parietal skull defects were created in each of 20 rabbits, with one defect being placed on either side of the sagittal suture. In 10 rabbits, an absorbable plate was placed across both the inner and outer cortices of the left defect, and in the other 10 rabbits, an absorbable plate was placed across the outer cortex only of the left defect. The right defect always served as the control side, with no plate being placed across it. Rabbits were killed an average of 25 weeks postoperatively. Areas of reossification in the experimental and control defects of each rabbit were then measured, examined histologically, and compared. Growth across defects spanned by one plate was also compared with growth across defects spanned by two plates. Histologic and statistical analyses revealed no significant differences in reossification between the control and experimental defects in each animal and between the defects spanned by one versus two plates. This study suggests that these copolymer absorbable plates neither inhibit nor facilitate reossification across 10-mm diameter rabbit cranial defects.

Absorbable Implants↗

PubMed1997

Fibrin glue fixation in forehead endoscopy: evaluation of our experience with 206 cases.

The endoscopic approach has totally replaced the bicoronal approach for the treatment of forehead aging in our practice since November of 1993. The fixation in proper position is obtained with fibrin glue. Results of a series of 206 procedures performed in 196 patients are presented. Eyebrow positioning and muscle weakening were rated on a scale of 1 to 4. The evaluation has been made at a minimal follow-up time of 6 months. The comparison of the results between the first series of 28 patients during the first 6 months of our experience and the second series of 69 patients during the following period showed a significant increase in the number of excellent results (from 47 to 78 percent). Altogether, the satisfactory results (rated excellent or good) increased from 71 to 86 percent. Fibrin glue provides a stable fixation with the possibility of displacement in several directions, including transversal expansion. Complications have been minimal. Secondary procedures and association with other facial operations have been analyzed.

Aged↗

PubMed1997

Musculature of the soft palate: clinico-anatomic correlations and therapeutic implications in the treatment of cleft palates.

OBJECTIVE: Hypoplasia of the maxilla, often described as a classic sequela to surgical repair of the cleft palate, has been rare in our experience. We believe that our surgical technique, which includes dividing the nasal mucosa and the abnormal muscular insertions at the posterior border of the hard palate, is an important factor in preventing this sequela. METHOD: We compared the anatomy of 12 normal palates in cadavers to the anatomy of cleft palates seen at operation and to the anatomy of one cleft palate in a fetus aged 34 weeks. RESULTS: In cleft palates, the muscular fibres have an abnormal sagittal orientation, inserting on the posterior border of the hard palate. CONCLUSION: The division of both the nasal mucosa and these abnormal muscular insertions at the posterior border of the hard palate enables the surgeon to eliminate the abnormal posterior pull of these fibers on the maxilla.

Cleft Palate↗