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To minimize radial compliance mismatch between native arteries and vascular prostheses over the entire blood pressure range, a biomimetic woven prosthesis sample with a bilayer wall has been developed. Poly(trimethylene terephthalate) (PTT) filaments were used as the circumferential yarns in the inner layer to increase the radial compliance of the inner wall, and poly(ethylene terephthalate) (PET) filaments formed the outer layer to provide a strong and more rigid external prosthesis wall. The two layers were joined together axially along the sample's length by a stitched weave. By means of a special weave design, the cross‐section of the tubular sample included a circumferentially crimped outer layer woven around the inner layer. This bilayer wall structure allowed only the inner layer of the sample to deform radially under small loads equivalent to low normal physiological (diastolic) blood pressures. As the load increased, the inner layer stretched until it came into contact with the outer layer. At hi...

The main objectives of enucleation, evisceration or secondary orbital implants are to replace orbital volume and obtain good motility and adaptation of the implant and the external prosthesis. We describe our experience using autologous dermis graft sutured to Tenon and conjunctiva following evisceration, enucleation and any reconstruction requiring either a primary or secondary orbital implant, even those with large tissue loss.A retrospective case series of patients who received an autologous dermis graft to assist in closure of a Tenon's capsule and conjunctiva at the time of placement of secondary orbital implants or evisceration or enucleation with fornices retraction or tension in tissues. We also describe how and from where to take the dermis graft.72 patients were included and all received orbital porous polyethylene implants: 28 patients had secondary orbital implants, 36 patients had evisceration and 8 patients had enucleation. Implant size was 20 mm in most cases, but went to 22 mm. Follow-up ranged from 3 to 36 months. No intraoperative complications were observed in donor or receptor area. 8 cases had incipient ischemia of the dermis graft, but were treated and resolved with autologous serum.Implant exposure is due to bad surgical technique, an inadequate implant size or excessive tension on the suture. Dermis autologous graft allows moving the orbital implant anteriorly because it replaces surface to suture Tenon and conjunctiva without tension, so a good adaptation of a thinner external prosthesis is possible, resulting in better motility.

This study evaluated patient's satisfaction with immediate breast reconstruction (IBR) with silicone prosthesis. Special attention is paid to the differences in satisfaction, and specific prosthesis related complaints of IBR after prophylactic and oncological mastectomy. All women who were operated on between April 1995 and May 1999 at the Erasmus Medical Centre, Daniel den Hoed Cancer Centre received 1 year following operation a self-report questionnaire, concerning their perceived advantages of and satisfaction with IBR, their prosthesis-related complaints and various psycho-social variables. The most important perceived advantage of IBR was not to have to wear an external prosthesis (95%). Despite the fact that one third of the patients had specific prosthesis related complaints, 80% was satisfied with IBR and 88% would do it again. There was no significant difference in satisfaction between the prophylactic and the cancer group. Overall satisfaction is mostly influenced by cosmetics (r = − 0.58), info...

Two types of abnormally small eye Sockets are described: (1) True contracted Sockets following injury or subconjunctival fibrosis, (2) Congenitally underdeveloped Sockets. Indications for surgery in both types are outlined. The use of an external prosthesis without further surgery is considered.