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Biomedical subjects

R B Drommer

Publications and source records attributed to R B Drommer.

12 recordsLinked to original sources
PubMed1997

[Facial wrinkles--ultrapulsed CO2 laser: alternative or supplement to surgical face lift?].

BACKGROUND: For many years, the treatment of facial wrinkles has been performed exclusively by dermabrasion, chemical peeling, or surgical face lifting. However, the recently introduced carbon dioxide lasers which emit ultrashort coherent light beams enable the cosmetic surgeon to ablate superficial epidemic layers with absent or very limited side effects. The purpose of this paper is to compare laser skin resurfacing with classical face lifting and discuss the potentials and limitations of each method. METHODS AND PATIENTS: Three patients suffering from facial wrinkles on photoaged skin were treated with the ultrapulsed CO2 laser (UltraPulse 5000 C; wavelength 10,600 nm, pulse duration 0.6 to 0.9 ms, maximum pulse energy 500 mJ). This laser guarantees vaporization of very thin superficial skin layers without scarring and with minimizing lateral thermal injury due to extreme short pulse duration. A special handpiece (CPG) permits an exact approach and a bloodless ablation of relatively large areas of facial skin. The fourth patient underwent a surgical face lift due to the depth of wrinkles. RESULTS: Excellent cosmetic results were achieved in all three patients with superficial wrinkles who were treated by laser skin resurfacing. When treating deeper wrinkles, e.g., glabella or nasolabial fold, the surgical face lift is the preferred method. CONCLUSION: Ultrapulsed CO2 laser treatment expands the therapeutic options for superficial facial wrinkles, especially for perioral, periorbital, forehead, and cheeks wrinkles. It proves to be a safe and effective method with very limited if any side effects. Nevertheless, deeper wrinkles are still a domain of the classical face lift. The combination of both methods may improve the overall outcome in the future.

Aged↗
PubMed1995

[Free fatty tissue transplantation in the area of the face].

The correction of asymmetries of the face is one of the most difficult procedures in reconstructive facial surgery. In a first step the bony structures have to be corrected, and in a second step the soft tissue parts have to be augmented. There are many possible ways of filling volume defects in soft tissue. We describe free fat transplantation and the findings on long-term clinical and sonographic follow-up. The results show that there is resorption of the free fat transplant for up to 1 year. In suitable cases this method can be recommended.

Adipose Tissue↗
PubMed1995

Free fat transplantation in the face.

Several operative procedures have been described for correction of soft tissue defects in the face. Free fat transplantation has been criticised many times. In a twelve-year period, we have carried out 19 free fat transfers from the gluteal fold, of a size ranging from the palm of a child's hand to the size of an adult hand. Follow-up has been possible in 12 patients with 14 such transfers. Initially, grafts tended to be too large and subsequent fat reduction was required. It is apparent that the tendency to resorption of non-vascularised fat can only be estimated to a limited extent. Ultrasound examination in the course of long-term follow-up showed structural changes within the grafts but none was particularly striking. The fat has a good consistency on palpation particularly for the cheeks and remains in situ after healing. This technique still has a role in suitable cases.

Adipose Tissue↗
PubMed1991

Skeletal reconstruction in cleft palate patients.

Improved management techniques of secondary cleft palate deformities are steadily evolving. The year's literature under review focuses mostly on the various methods available for establishing a complete and stable dental arch. Bone from the mandibular symphysis seems to offer a more reliable source of autogenous bone than do other sites, although if the residual cleft is large, this site may not provide sufficient bone. The optimum time to graft the alveolus appears to be after the incisors have erupted, but before the canine root has fully formed and the crown broken through the mucosa. Mucoperiosteal flaps give better long-term results than do mucosal flaps. Long-term stability of the alveolar segments may be achieved with extended bridges, and the use of rigid internal fixation may offer better three dimensional stability of the maxilla following advancement and inferior repositioning. Pharyngeal flaps have a detrimental effect on stability of the maxilla after advancement, although they may have a beneficial effect on velopharyngeal function after maxillary surgery.

Age Factors↗
PubMed1989

[Defect prosthesis following total upper jaw resection].

Using the method described, a defect prosthesis can be fastened with the help of operatively prepared retention sites and transnasal anchorage after total upper jaw resection. The technical process of manufacture is outlined and the result demonstrated in photographs.

Carcinoma, Squamous Cell↗
PubMed1986

The history of the "Le Fort I osteotomy".

The history of temporary mobilisation of the upper jaw is described. The operation was first described 130 years ago for removal of a nasopharyngeal tumour. The maxilla was split at the level now known as a Le Fort I osteotomy. A further 80 years elapsed before this operation became part of the surgical treatment of skeletal deformities of the face.

History, 19th Century↗
PubMed1986

Torque measurements of the mechanical load capacity of thin bony structures of the visceral cranium.

The stability of self-tapping screws of the Luhr (1979)-mini-plate system in thin facial bones was assessed. The maximal possible torque which can be applied to the screws before they strip the thread in the bone was measured. This end point was called the penetration torque. Only the central section of the maxillary sinus wall was unsuitable for anchorage of the screw and plate. The other sections of the osseous middle and lateral parts of the face, of the glabella and of the root of the nose have sufficient strength for bony segments to be anchored using plates.

Adult↗