Effect of Graft Size, Angle, and Intergraft Distance on Dense Packing in Hair Transplant

Al-Haddab, Mohammed; Kohn, Thomas; Sidloi, Mark

doi:10.1111/j.1524-4725.2005.31606

Cited by 9 publications

(5 citation statements)

References 9 publications

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“…There are various kinds of blades and needles being used in recipient area site creation. The diameter of these instruments varies from 0.6 mm to 1.5 mm which correspond to almost 23 o G to 16 o G. 5,6 Depending on the instrument used, the recipient slits vary in size, depth, and width. The recipient site creation results in minor trauma to the superficial scalp.…”

Section: Discussionmentioning

confidence: 99%

Effect of different shapes of recipient site creation micro‐blades at varying angles and wound injury

Malik¹,

Ismail²

2021

J of Cosmetic Dermatology

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Background: Wound injury is a critical issue in hair restoration. The shape and size of blades cause varying degree of tissue trauma. Aims:To check (mathematically) the tissue trauma (injury) caused by different shapes of the blades at varying angles.Patients/Methods: The trigonometric theories were applied to each shape and angles to calculate the surface area (correlating with the tissue injury). These shapes included rectangular blade, 30°-angled blades, 60°-angled blade, 30°-sapphire blade, and 60°-sapphire blade. The surface areas were calculated at 90°, 45°, 30°, and 15° insertion angles. Results:The 30°-sapphire blade caused the least injury followed by 30°-angled blade.The rectangular blade had the largest surface area and hence will produce the maximum amount of tissue injury. The blade at 90° produced maximum injury whereas the blade entering at 15°, produced lowest amount of tissue injury. The blade in sagittal direction caused less injury as compared to the blade in coronal direction. Conclusion:The 30°-sapphire blade caused the least tissue injury whereas the rectangular blade caused maximum injury. The amount of tissue injury decreases as the angle of insertion decreases and vice versa.

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Section: Discussionmentioning

confidence: 99%

Effect of different shapes of recipient site creation micro‐blades at varying angles and wound injury

Malik¹,

Ismail²

2021

J of Cosmetic Dermatology

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“…12 Numerous incisions of varying depths and widths, depending on the instrument used, are made in the scalp, which may potentially lead to ischemia. [12][13][14] Many physicians who perform hair transplantation prefer to use custom-made blades in their practice. For this purpose, some use a blade cutter referred to as the Cutting Edge (Cutting Edge Inc.).…”

Section: Determination Of Scalp Vascular Topography By Laser Doppler ...mentioning

confidence: 99%

Determination of Scalp Vascular Topography by Laser Doppler Flowmetry and Comparison of Vascular Damage by Different Blades in Hair Transplantation

Balik

2023

Journal of Craniofacial Surgery

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Background: Although necrosis is a rare complication in hair transplantation, it is extremely traumatic for both the patient and surgeon and also has potential medicolegal consequence. Studies have shown that ischemia in the recipient bed is related to tissue damage caused by the instruments used and the number of grafts per cm². Objective: We aimed to measure the effects of different instruments on circulation by dividing the recipient area of hair grafts of the same person into 2 sides as right and left. Methods and Materials: Sapphire percutaneous blade was used on the right side, and a handmade razor slit was used on the left side in 12 male patients with consent. Subsequently, vascularity was evaluated with laser Doppler flowmetry. Results: Scalp vascularity has so far only been evaluated with macroanatomic studies in the literature. First, the authors evaluated the effect of local anesthesia and adrenaline-containing swelling fluids on vascularity with a Laser Doppler Flowmeter. Afterward, the tissue damage caused by sapphire percutaneous blades and handmade blades (obtained from razor blades) were quantitatively analyzed and compared with each other. Conclusions: Our results showed that handmade razor blades caused significantly less tissue damage.

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“…It was determined that assuming the surface area of the recipient site is 1 cm 2 , the diameter of the graft is 1 mm, and the space between grafts is 1.5 mm that 33 could be implanted at a 90° angle, 28 at a 60° angle, and 16 at a 30° angle. Besides using this equation, it is useful to observe the patients existing hair and match that as much as possible (19).…”

Section: Factors With Excision and Implantation Of Hair Graftsmentioning

confidence: 99%

“…Micrografting (grafts containing 1-2 hair follicles) or minigrafting can be performed using dilation as well as FUT. Micrografting most often is used to recreate the frontal hairline (19).…”

Section: Creating Recipient Sitesmentioning

confidence: 99%

Basic hair transplantation: 2007

Sadick

White

2007

Dermatologic Therapy

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The most common form of hair loss is androgenic alopecia that affects at least half of the male population by age 50 is speculated to be caused by a change in the balance of androgen hormones. Male hair loss occurs in a characteristic pattern of decreased hair growth where hair becomes progressively finer, less pigmented, ceasing growth completely, and then becoming dislodged from the scalp. Hair loss to some patients is a serious issue that can impart a social and psychologic impact on their life. Hair restoration and transplantation have the potential to provide a solution for this problem; however, it is not effective for every patient. This review article looks at past hair transplantation techniques and studies that have provided the basis for current procedures and new research at how to target successful results.

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Effect of Graft Size, Angle, and Intergraft Distance on Dense Packing in Hair Transplant

Cited by 9 publications

References 9 publications

Effect of different shapes of recipient site creation micro‐blades at varying angles and wound injury

Effect of different shapes of recipient site creation micro‐blades at varying angles and wound injury

Determination of Scalp Vascular Topography by Laser Doppler Flowmetry and Comparison of Vascular Damage by Different Blades in Hair Transplantation

Basic hair transplantation: 2007

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