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Hair Regrowth After Bicoronal Incision

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified March 2012 by Sunnybrook Health Sciences Centre.
Recruitment status was:  Not yet recruiting
Information provided by (Responsible Party):
Dr. Jeff Fialkov, Sunnybrook Health Sciences Centre Identifier:
First received: March 15, 2012
Last updated: March 16, 2012
Last verified: March 2012
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.

Condition Intervention
Procedure: Straight Incision
Procedure: Bevelled Incision

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Single Group Assignment
Masking: Double Blind (Participant, Outcomes Assessor)
Primary Purpose: Prevention
Official Title: A Randomized Blinded Comparison of Hair Growth Following Either Bevelled or Standard Bi-coronal Scalp Incisions.

Resource links provided by NLM:

Further study details as provided by Sunnybrook Health Sciences Centre:

Primary Outcome Measures:
  • Hair Regrowth Within the Scar [ Time Frame: 12 months ]
    Hair growth through the scar will be counted at 6 and 12 month followup

Secondary Outcome Measures:
  • Scar Characteristics [ Time Frame: 1 year post surgery ]
    Scars will be rated based on the Vancouver Scar Scale (Sullivan, 1990)

Estimated Enrollment: 26
Study Start Date: May 2012
Estimated Primary Completion Date: November 2013 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: Straight Incision
incision made perpendicular to scalp surface
Procedure: Straight Incision
The incision will be made at a 90 degree angle to the surface of the scalp
Active Comparator: Bevelled Incision
Incision made at 45 degrees to scalp surface
Procedure: Bevelled Incision
The Incision will be made at a 45 degree angle to the surface of the scalp.


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

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
  Contacts and Locations
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Please refer to this study by its identifier: NCT01557491

Contact: Mathew A Plant, MD

Canada, Ontario
Sunnybrook Health Sciences Centre Not yet recruiting
Toronto, Ontario, Canada, M4N3M5
Contact: Jeffrey Fialkov, MD    4164804257      
Principal Investigator: Jeffrey Fialkov, MD, FRCSC         
Sub-Investigator: Mathew A Plant, MD         
Sponsors and Collaborators
Sunnybrook Health Sciences Centre
Study Director: Mathew A Plant, MD University of Toronto Plastic and Reconstructive Surgery
  More Information

Responsible Party: Dr. Jeff Fialkov, Craniofacial Surgeon, Sunnybrook Health Sciences Centre Identifier: NCT01557491     History of Changes
Other Study ID Numbers: 8080808
Study First Received: March 15, 2012
Last Updated: March 16, 2012

Keywords provided by Sunnybrook Health Sciences Centre:
Coronal Incision
Scar Quality

Additional relevant MeSH terms:
Alopecia Areata
Hair Diseases
Skin Diseases
Pathological Conditions, Anatomical processed this record on April 28, 2017