Side-effects from follicular unit extraction in hair transplantation

Avram, Marc R.; Rogers, Nicole E.; Watkins, Shannon

doi:10.4103/0974-2077.146681

Cited by 23 publications

(19 citation statements)

References 8 publications

(8 reference statements)

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“…This may create an iatrogenic “moth-eaten” or “pseudo-syphilitic” appearance [Figure 2]. [7]Pinpoint scaring: It is a misconception that FUE is a scarproof technique. The punch used to harvest each follicular grouping may create pinpoint white atrophic macules [Figure 3].…”

Section: Complications After Fuementioning

confidence: 99%

Complications in hair transplantation

Kerure¹,

Patwardhan²

2018

J Cutan Aesthet Surg

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Hair transplantation is a relatively safe surgery and is associated with very few complications. It is a cosmetic surgery so the complications may impact social and psychological aspect of the patient. Every hair transplantation surgeon should be aware of possible complications and techniques for the prevention and techniques of their management. Most of the complications are avoidable and can be minimized by proper surgical technique and wound care. Counseling and discussion with the patient before surgery help in proper planning and avoid patient dissatisfaction. Every patient should be individualized, planned, and operated with an aim to zero-down the complications and complaints.

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Section: Complications After Fuementioning

confidence: 99%

Complications in hair transplantation

Kerure¹,

Patwardhan²

2018

J Cutan Aesthet Surg

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“…Follicular density (number of follicles/cm 2 ) is important in scouting for donor areas and assessing transplant success [ 8 ]. We evaluated the ability of the PAI technique to quantitate follicle density in various regions.…”

Section: Resultsmentioning

confidence: 99%

“…Consequently, FUE results in less severe scarring than FUT, and is more commonly requested by patients for this reason [ 7 ]. However, FUE is a more technically demanding procedure and has a higher risk of follicle transection; in some cases, it can also lead to cyst formation or a “moth-eaten” appearance of the donor region [ 8 ].…”

Section: Introductionmentioning

confidence: 99%

Photoacoustic Imaging as a Tool for Assessing Hair Follicular Organization

Hariri

Moore

Mantri

et al. 2020

Sensors

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Follicular unit extraction (FUE) and follicular unit transplantation (FUT) account for 99% of hair transplant procedures. In both cases, it is important for clinicians to characterize follicle density for treatment planning and evaluation. The existing gold-standard is photographic examination. However, this approach is insensitive to subdermal hair and cannot identify follicle orientation. Here, we introduce a fast and non-invasive imaging technique to measure follicle density and angles across regions of varying density. We first showed that hair is a significant source of photoacoustic signal. We then selected regions of low, medium, and high follicle density and showed that photoacoustic imaging can measure the density of follicles even when they are not visible by eye. We performed handheld imaging by sweeping the transducer across the imaging area to generate 3D images via maximum intensity projection. Background signal from the dermis was removed using a skin tracing method. Measurement of follicle density using photoacoustic imaging was highly correlated with photographic determination (R2 = 0.96). Finally, we measured subdermal follicular angles—a key parameter influencing transection rates in FUE.

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“…In the study by Bernstein, the transection rate has been found to be variable . In a study by Avram using robot, a wide transection rate ranging from 0.4% to 32.1% with average 6.6%, was noted . In another study by the authors, the graft:hair ratio was found to be 1:2.3 using 0.9 mm punch…”

Section: Discussionmentioning

confidence: 99%

Battle of the punches: Comparison of transection rates of different punches during FUE

Mohmand¹,

Malik²

2019

J of Cosmetic Dermatology

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Objectives To know the transection rate using three different kinds of punches of the same size (0.9 mm). Materials and methods The study was conducted in 10 patients undergoing FUE. Informed consent was obtained from all the patients. In each patient, five areas of 1 cm2 were selected in three rows (each row having five areas of 1 cm2). For each row, one kind of punch (sharp, serrated, and blunt) was used. The rows were selected randomly (single‐blind). The machine was set at a constant speed of 1200‐1500 g. The grafts were harvested with the patient in lying position, the surgeon sitting on head side, and the harvesting started from the right side of the patient to left side. For each box, the FUs and hair were calculated. The harvested FUs were checked under microscope. Any transection (complete or incomplete) was calculated. All the data were collected and analyzed. Results The total hair yield was maximum with blunt punch (268.4) followed by serrated (247.2) and sharp (207.6). Similarly, the maximum FU yield was 155 using serrated punch followed by 154.4 by blunt and 147.2 in sharp punch. The hair:FUs was highest in blunt punch (1:1.738) vs serrated punch (1:1.595) vs sharp punch (1:1.410). The transection rate was highest with sharp punch (23.9%) followed by serrated (18.8%) and blunt punch (14.5%). Conclusion The graft:hair ratio was maximum using blunt punch. Sharp punch resulted in maximum transection rate with lowest graft:hair ratio.

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Side-effects from follicular unit extraction in hair transplantation

Cited by 23 publications

References 8 publications

Complications in hair transplantation

Complications in hair transplantation

Photoacoustic Imaging as a Tool for Assessing Hair Follicular Organization

Battle of the punches: Comparison of transection rates of different punches during FUE

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