Update on laser-assisted hair transplantation.

[OBJECTIVE] The aim of this study was to examine the laser parameters evaluated in previous studies with a larger patient group (n = 491), particularly with regard to patient-related and operation-related advantages and disadvantages. Particular attention was devoted to hair growth rate and the postoperative healing process.

[METHODS] The implant holes were created using an optomechanical, beam-focusing miniature scanner and a 80-W carbon dioxide laser.

[RESULTS] All patients in Norwood classification groups I, II, and III displayed proper hair growth. On an average of all patients treated, this occurred with a delay of some 4-6 weeks. Compared with the cold steel technique, the healing process was shortened by 3-4 days.

[CONCLUSIONS] Making allowances for the formula: minimum wattage with a minimum exposure time and a minimum hole diameter, the laser is an ideal instrument to use on the hairline and crown.