PubMed Health⌕ Search

Biomedical subjects

Abraham Amir

Publications and source records attributed to Abraham Amir.

8 recordsLinked to original sources
PubMed2004

Use of the SpaceMaker balloon dissector for repair of sacral pressure sores.

Most of the techniques that have been suggested for closure of sacral pressure sores use musculo-cutaneous flaps. We report our experience in three patients using the SpaceMaker balloon dissector. The dissector was inserted into the subgluteal maximus muscle plane to expand the muscle and overlying skin, thereby forming bilateral sliding and tension-free musculocutaneous flaps. The procedure is simple, safe, bloodless, and combines the advantages of advancement of a muscle flap and expansion.

Humans↗
PubMed2004

Balloon expansion of the pectoralis major muscle flap in sternoplasty: a biomechanical and histologic study in a rat model.

The pectoralis major advancement flap is currently the most popular technique for reconstruction of the anterior chest in patients with sternotomy wounds. Recently, the SpaceMaker balloon was introduced for rapid expansion of the pectoralis major muscle intraoperatively. The aim of the present study was to investigate the biomechanical and histologic effects of this expansion technique in a rat model. The upper 2 cm of the sternum was resected in 54 male rats. Reconstruction with balloon-assisted pectoralis muscle expansion was performed in 24 rats (study group). Another 24 rats underwent reconstruction with simple muscle advancement without expansion. Submuscular insertion of a catheter for expansion, without inflation, was performed in the remaining six rats (sham group). Rats were killed either immediately or 2 to 4 weeks after surgery. Thirty-eight rats, including 16 after reconstruction with expansion, 16 after reconstruction without expansion, and six in the sham group, were killed immediately after surgery. Sixteen rats were killed 2 to 4 weeks after surgery, eight rats for each reconstruction technique. Before the animals were killed, the biomechanical properties of the muscles were tested with weights to calculate stiffness (in newtons per meter) and compliance gain (in percent). After the animals were killed, biopsy specimens were obtained for histologic analysis. Results indicated significantly lower muscle stiffness in the study group compared with the others immediately after surgery (p = 0.0000), although the difference failed to achieve statistical significance 2 to 4 weeks later (p = 0.76). In the study group, the compliance gain was 74.4 percent immediately after surgery but only 3.4 percent 2 weeks to 1 month postoperatively. Histologic examinations in all groups immediately and 2 to 4 weeks after surgery revealed regular muscle striation with no signs of inflammation. The elastic stiffness of the rat pectoralis major muscle is significantly reduced following rapid intraoperative expansion and returns to normal 2 to 4 weeks later.

Animals↗
PubMed2004

Modified von Bruns' technique for total lower lip reconstruction.

BACKGROUND: Large defects of the lower lip represent a challenge to the reconstructive surgeon. The reconstructed lip should be sensate, retain muscle function, allow sufficient mouth opening for dentures, and have an acceptable aesthetic appearance. Many surgical techniques for lower lip reconstruction have been reported. We describe a modification of von Bruns' technique for reconstruction of the lower lip and both commissures. OBJECTIVE: To present a surgical technique for reconstruction of the lower lip and both commissures, which we applied in a patient with a huge squamous cell carcinoma of the total lower lip and part of the upper lip. METHODS: Two upper nasolabial flaps, one above the other, were used. The surgical technique is discussed. CONCLUSION: The technique is simple and is one stage. It provides complete support to the reconstructed lower lip and commissures.

Carcinoma, Squamous Cell↗
PubMed2003

Rotation flap of the anterior rectus abdominis sheath for hernia prevention in TRAM breast reconstruction.

Prevention of hernia or bulge of the abdominal wall after TRAM breast reconstruction has been a challenge for the reconstruction surgeon. Different techniques have been described to avoid this complication. The use of anterior rectus abdominis sheath (ARAS) for the repair of various abdominal wall hernias has been well described in the literature and is the basis of the authors' technique. The authors present the use of ARAS flap in TRAM breast reconstruction. It is a simple and safe technique using autologous tissues for hernia or bulge prevention.

Female↗
PubMed2002

Role of physicians and patients in the diagnostic delay of cutaneous malignant melanoma.

The incidence of cutaneous malignant melanoma is increasing constantly. The most accurate prognostic factor of primary melanoma is thickness of the lesion according to Breslow. Information and screening campaigns for early diagnosis of melanoma are based on the assumption that tumor thickness is the consequence of a delay in diagnosis. However, the correlation of delay in diagnosis with prognosis remains controversial. In this report, the authors investigated the role of the physician and the patients in diagnostic delay in melanoma and areas in which improvement is needed. The reduction of the time to diagnosis in specific population groups may improve the prognosis of melanoma.

Dermatology↗
PubMedDate not supplied

Subdermabrasion in the treatment of post-burn facial hypertrophic scars.

Hypertrophic scars cause great discomfort to the patient and pose a challenge for the reconstructive surgeon. This is particularly true in the facial area. Optimal function and aesthetic appearance are the main goals of reconstruction. We suggest an adjunct to the surgical management of facial hypertrophic scars which involves abrasion of the subdermal plane. The technique consists of removal of all scarred skin from the aesthetic unit, dermabrasion of subcutaneous tissues, including the muscular surface (subdermabrasion), and a full thickness skin grafting. This technique was applied in a young patient with hypertrophic burn scars of the chin. Biopsy confirmed our basic assumption that hypertrophic scars extend into the muscular plane.

Adult↗