Hair Regrowth After Bicoronal Incision

A Randomized Blinded Comparison of Hair Growth Following Either Bevelled or Standard Bi-coronal Scalp Incisions.

Status

UNKNOWN

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT01557491

Enrollment

Registered

2012-03-19

Start date

2012-05-31

Completion date

Unknown

Last updated

2012-03-19

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Alopecia

Keywords

Alopecia, Coronal Incision, Scar Quality

Brief summary

Loss of hair growth potential in long surgical scalp incisions can become obvious to the patient and others, given hair's tendency to part along the resulting scar. Bevelling incisions perpendicular to the hair follicle angle may increase hair growth through the scar. However, many factors may be confounders such as wound tension and cauterizing the incision. This study will investigate the effect a bevelled incision has on hair growth preservation compared to a standard incision that incises the skin perpendicular to its surface irrespective of hair follicle angles. Following informed voluntary consent, subjects who require bi-coronal scalp incisions as part of a surgical plan will be enrolled. The right side of this bilateral incision will be randomized to receive either a bevelled or a standard incision and the left side will receive the opposite type. During routine surgical follow-up the hair growth within the scar of the two sides will be recorded for comparison and it is our hypothesis that the side with the bevelled incision will have more hair within the scar.

Interventions

PROCEDUREStraight Incision

The incision will be made at a 90 degree angle to the surface of the scalp

PROCEDUREBevelled Incision

The Incision will be made at a 45 degree angle to the surface of the scalp.

Study design

Allocation

RANDOMIZED

Intervention model

SINGLE_GROUP

Primary purpose

PREVENTION

Masking

DOUBLE (Subject, Outcomes Assessor)

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Inclusion criteria

* Bicoronal Incision required as part of surgical plan * Incision within hair-bearing scalp

Exclusion criteria

* Previous Bicoronal Incision * Unfit for Surgery * Unable to provide informed consent * Unable to comply with followup * Preexisting alopecia of scalp * Cutaneous malignancy of scalp

Design outcomes

Primary

Measure	Time frame	Description
Hair Regrowth Within the Scar	12 months	Hair growth through the scar will be counted at 6 and 12 month followup

Secondary

Measure	Time frame	Description
Scar Characteristics	1 year post surgery	Scars will be rated based on the Vancouver Scar Scale (Sullivan, 1990)

Countries

Canada

Contacts

Primary ContactMathew A Plant, MD

mplant2008@meds.uwo.ca

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026