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Papers by Berend van der Lei

Journal of Plastic, Reconstructive & Aesthetic Surgery, 2019

Aesthetic Surgery Journal, 2019

Aesthetic Surgery Journal, 2018

Background Minimally invasive facelift techniques involving barbed suture insertion have become p... more Background Minimally invasive facelift techniques involving barbed suture insertion have become popular among patients who wish to correct facial tissue ptosis. Objectives The authors sought to determine the effectiveness, longevity, complications, and postoperative sequelae associated with facelift by means of barbed polydioxanone (PDO) threads. Methods A total of 160 consecutive patients who underwent facelift with barbed threads were evaluated retrospectively. For malar augmentation and correction of nasolabial grooves, 2 or 3 PDO threads (23 gauge) were placed per side; for treatment of mandibular lines, 2 to 4 PDO threads (21 gauge) were inserted per side. Results Immediately after suture placement and for 1 month postoperatively, patients experienced improvement in facial tissue ptosis. This aesthetic result declined noticeably by 6 months and was absent by 1 year. The overall complication rate in the early postoperative period was 34% (55 of 160 patients). Eighteen patients (...

Plastic and Reconstructive Surgery - Global Open, 2020

Background: There is a need for a reliable classification system to grade contour deformities and... more Background: There is a need for a reliable classification system to grade contour deformities and to inform reimbursement of body contouring surgery after massive weight loss. We developed the PRS Rainbow Classification, which uses select photographs to provide standardized references for evaluating patient photographs, to classify contour deformities in postbariatric patients. To assess the reliability of the PRS Rainbow Classification to classify contour deformities in massive weight loss patients. Methods: Ten independent experienced plastic surgeons, 7 experienced medical advisors of the healthcare insurance company, and 10 laypersons evaluated 50 photographs per anatomical region (arms, breast, abdomen, and medial thighs). Each participant rated the patient photographs on a scale of 1–3 in an online survey. The inter-observer and the intra-observer reliabilities were determined using intra-class correlation coefficients (ICCs). The ICC analyses were performed for each anatomica...

Aesthetic Surgery Journal

Background For decades, facial fat grafting has been used in clinical practice for volume restora... more Background For decades, facial fat grafting has been used in clinical practice for volume restoration. The main challenge of this technique is variable volume retention. The addition of supplements to augment fat grafts and increase volume retention has been reported in recent years. Objectives The aim of this systematic review was to investigate which supplements increase volume retention in facial fat grafting as assessed by volumetric outcomes and patient satisfaction. Methods Embase, Medline, Ovid, Web of Science Core Collection, Cochrane Central Register of Controlled Trials, and Google Scholar were searched up to November 30, 2020. Only studies assessing volume after facial fat grafting with supplementation in human subjects were included. Outcomes of interest were volume or patient satisfaction. The quality of the studies was assessed with the Effective Public Health Practice Project tool. Results After duplicates were removed 3724 studies were screened by title and abstract....

Aesthetic Surgery Journal

Background Breast implant-associated anaplastic large-cell lymphoma (BIA-ALCL) and its associatio... more Background Breast implant-associated anaplastic large-cell lymphoma (BIA-ALCL) and its association with macrotextured breast implants may have induced plastic surgeons to change their breast augmentation and breast reconstruction practice. Objectives We surveyed Dutch plastic surgeons about the effects of BIA-ALCL on their choice of breast implant texture and placement technique. Methods An online questionnaire was distributed among all members of the Dutch Association of Plastic Surgeons (NVPC). Descriptive data were presented as frequencies and percentages. Technique alterations were analyzed using marginal homogeneity test for paired nominal data. Results A total of 63 plastic surgeons completed the questionnaire. The majority of respondents altered implant texture use due to BIA-ALCL for both breast augmentation and reconstruction (75.4% and 69.8%, respectively; both being statistically significant, p<0.001). Microtextured and smooth/nanotextured breast implants are now most ...

Plastic and Reconstructive Surgery, 2019

Annals of Plastic Surgery, 2008

Plastic & Reconstructive Surgery, 2019

This article compares 3 different methods how to identify the new IMF for a certain breast implan... more This article compares 3 different methods how to identify the new IMF for a certain breast implant volumes / dimensions, including our own method that is called "The Pythagorean Theorem Method".

Plastic and Reconstructive Surgery, 1996

Successful implantations of PTFE microvenous prostheses with 3M precise anastomosis systems were ... more Successful implantations of PTFE microvenous prostheses with 3M precise anastomosis systems were presented. Twelve PTFE prostheses (Gore-Tex;I.D.1.0 mm) were implanted into rat femoral veins by means of 3M precise technique to evaluated the patency rate. In the control group, PTFE prostheses (n = 12) were implanted by means of end-to-end technique. In the experimental group, patency of the PTFE prostheses was evaluated at 3 (n = 6) and 6 (n = 6) weeks after implantation by means of macroscopic inspection and scanning electron microscopy. All prostheses except one were patent at the time of removal (patency rate 91.7 percent). All the microvenous prostheses were completely covered by an endothelial layer at 3 and 6 weeks after implantation, and no stenosis was observed at the anastomotic sites. In the control group, all prostheses except one were found to be occluded 3 weeks after implantation. These results demonstrate the value of the 3M precise technique when implanting PTFE microvenous prostheses.