An Analysis of Follicular Punches, Mechanics, and Dynamics in Follicular Unit Extraction

Cole, John P.

doi:10.1016/j.fsc.2013.05.009

Cited by 54 publications

(46 citation statements)

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“…The field of hair restoration has undergone various dramatic and revolutionary changes especially over the last two decades. These include the introduction of new hair loss classifications, the use of various kinds of machines including robots . Nowadays, the hair restoration is being considered as one of the “safe” office‐based surgical procedures.…”

Section: Introductionsupporting

confidence: 89%

Analysis of the changes in scalp hair angles: In vivo and in vitro comparison before and after tumescence

Malik¹,

Mohmand²

2018

J of Cosmetic Dermatology

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Section: Introductionsupporting

confidence: 89%

Analysis of the changes in scalp hair angles: In vivo and in vitro comparison before and after tumescence

Malik¹,

Mohmand²

2018

J of Cosmetic Dermatology

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“…Theoretically, fractures occur more frequently under circumstances of increased axial force such as rubbery skin; long, thick hair follicles; hyperelastic skin; and use of a blunt punch tip. 15 …”

Section: Discussionmentioning

confidence: 99%

Various Types of Minor Trauma to Hair Follicles During Follicular Unit Extraction for Hair Transplantation

Park

You

2017

Plastic and Reconstructive Surgery - Global Open

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Background:When performing follicular unit extraction (FUE), various types of minor hair follicle trauma unapparent during follicular unit strip surgery are likely to occur. However, no studies have examined such damage.Methods:In total, 100 grafts were randomly selected from each of 42 patients who underwent FUE with a 1-mm-diameter sharp punch. A ×5.5 magnifying loupe and a ×60 magnifying binocular microscope were used. The transection rate (TR), paring, fractures of and damage to the dermal papilla (DP) areas, and hair bulb partial injury were assessed.Results:Observation with the magnifying loupe revealed an average TR of 7.40%, and 4.31, 1.90, 1.52, and 0.43 hair follicles per 100 grafts exhibited paring, fracture, DP partial injury, and hair bulb partial injury, respectively. An average of 9.21 telogen hairs were observed. Microscopic examination revealed a TR of 6.34%, and 9.07, 1.95, 0.79, and 1.24 hair follicles per 100 grafts exhibited paring, fracture, DP injury, and hair bulb partial injury, respectively. An average of 16.62 telogen hairs were observed.Conclusions:Various types of minor hair follicle damage occur during FUE as shown by loupe and microscopic examination of the grafts. Especially paring and hair bulb injury were more apparent under microscopic examination. These minor hair follicle injuries should be considered when choosing operative method or surgical techniques.

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“…The various advantages and disadvantages of these designs are mentioned in the literature. 4,5 The clinical studies documented in literature have emphasized on the transection rates of different punches and machines. [6][7][8][9] These different punches have different kinds of impact on the donor area in terms of removal of the skin/tissue.…”

Section: Introductionmentioning

confidence: 99%

Comparison of tissue loss by different punches: A new A‐design

Malik¹

2018

J of Cosmetic Dermatology

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An Analysis of Follicular Punches, Mechanics, and Dynamics in Follicular Unit Extraction

Cited by 54 publications

References 1 publication

Analysis of the changes in scalp hair angles: In vivo and in vitro comparison before and after tumescence

Analysis of the changes in scalp hair angles: In vivo and in vitro comparison before and after tumescence

Various Types of Minor Trauma to Hair Follicles During Follicular Unit Extraction for Hair Transplantation

Comparison of tissue loss by different punches: A new A‐design

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