Dr. Jean Devroye Posted October 1, 2013 Share Posted October 1, 2013 This patient received 3143 grafts for 6913 hair in two days. The donor area was divided in two equal halves : right and left. The first day, two kinds of punches were used 0.9 mm and 1 mm. Indeed, I often use two different sizes. The bigger punch for the bigger grafts and then, the small one to finish the area with the smallest grafts. The result was : 1614 grafts for 3389 hair. So, 2.1 hair/graft for a FTR of 8 %. (Definition of Follicle Transection Rate (FTR or TR) This is the result obtained when the total number of transected hair follicles are divided by the total number of follicles that have been extracted, both intact and transected.) The second day, for the second half of the donor area, I increased the size of the punch to 0.95 and 1.05 mm. Result : 1529 grafts for 3524 hair, so 2.3 hair/graft for a FTR of 4 %. This is a good illustration of the influence of the punch size on the result of the extraction. A small augmentation of the punch size resulted in an increase of the hair number per graft (2.3 instead of 2.1) and a decrease of the transection rate at a very low level (4 % instead 8 %). I'm not favorable to using the micro punch (0.7 mm). I think that it’s better to adapt the punch size to the size of the follicles to obtain as much hair as possible per graft, and in the same time less transection. The reason is simple, the patient wants hair. And he wants a good result at the first surgery! The picture of the grafts shows the quality of these ones. The picture of the donor area was taken immediately after the surgery and showed the size of the gaps for a punch of 1 mm, with a density of 15 grafts extracted per cm2 (square of 4 cm2). I will send you an update of this patient soon. Dr. Jean Devroye HTS Clinic - Bruxelles Email: info@hts-clinic.com Telephone: +32 2 880 70 60 Website: https://www.hair-transplant-surgery.com/en/home Online consultation: https://www.hair-transplant-surgery.com/en/Online-diagnostic Devroye Instruments: https://www.devroyeinstruments.com/ Dr. Devroye is a member of the Coalition of Independent Hair Restoration Physicians Link to comment Share on other sites More sharing options...
Senior Member Blake Bloxham Posted October 2, 2013 Senior Member Share Posted October 2, 2013 Excellent presentation. Thank you for sharing! "Doc" Blake Bloxham - formerly "Future_HT_Doc" Forum Co-Moderator and Editorial Assistant for the Hair Transplant Network, the Hair Loss Learning Center, the Hair Loss Q&A Blog, and the Hair Restoration Forum All opinions are my own and my advice does not constitute as medical advice. All medical questions and concerns should be addressed by a personal physician. Link to comment Share on other sites More sharing options...
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