Biomedical subjects
A D Dias
Publications and source records attributed to A D Dias.
The anatomical basis of the SEPA flap.
The superficial external pudendal artery (SEPA) flap was described by Dias in 1984. This paper describes the anatomical foundation of the flap, based on dissections of 12 cadavers and clinical findings in patients undergoing surgery in the groin and lower abdomen. The artery was found to be adequate in calibre and length to sustain a skin flap, on either side of the midline, extending from the symphysis pubis to the umbilicus.
The uses of the SEPA flap in the repair of defects in the hands and fingers.
A series of 30 cases is presented in which the SEPA flap was used to provide skin cover for injuries and defects in the hand and fingers. Our experience with both unilateral and bilateral SEPA flaps confirms their reliability, convenience and versatility. The SEPA flap design can be used in conjunction with other flaps and in itself contributes to a more rational use of the skin of the lower abdomen in reconstructive surgery.
The post- and retro-auricular scalping flap (the PARAS flap).
The possibility of an axial pattern scalp flap with a random extension is presented on the basis of cadaveric dissection and clinical studies. The study shows promise of an aesthetic flap for covering facial defects. The vascular anatomy is discussed and the surgical technique described, and its clinical application in five patients illustrated. More clinical work and long term follow-up are in progress.
The superficial external pudendal artery (SEPA) axial-pattern flap.
An axial-pattern flap based on the superficial external pudendal vessels is described. Its anatomy has been studied in 12 cadavers and the flap has been used clinically in 6 patients. The flap is very mobile and can be rotated through almost 180 degrees on either side. Immobilisation is less troublesome when the flap is used on the hand. A bilateral SEPA flap is also described.
A truly endaural approach to the temporo-mandibular joint.
This paper presents 12 cases of temporo-mandibular joint arthroplasty done through an endaural incision which lies strictly within the confines of the ear. No scar is seen in profile view. Adequate exposure of the joint is achieved and safe excision of the head and coronoid process is possible. There is no possibility of danger to the branches of the facial nerve. The post-operative results are satisfactory and are tabulated.
A bipedicle flap in the correction of burn contractures.
The principle of the bipedicle flap has been employed in the correction of contractures using some of the skin and scar at the site of the contracture. The contracture is released by making two parallel transverse incisions one above and the other below outlining a bipedicle flap at the level of the joint crease. The scar above and below this transverse pedicle is excised to release the contracture and the raw areas are skin grafted. This manoeuvre combines the advantages of a flap (in the critical area) with those of skin grafting. With proper care and planning the "flap" invariably survives. It has been employed in the release of 38 contractures of various joints.
Reconstruction with the use of a sheath of fine stainless steel wire mesh.
This paper describes the use of stainless steel wire mesh as the basic material in fabricating a sheath to be inserted as a surgical implant. This sheath can be moulded into various shapes and sizes by hand at the time of operation. It has been used for reconstruction in various areas. It is inexpensive and its range of application appears to be considerable. It has been used to date in 16 patients and two cases have now been followed up for over one year.