Trichophytic Forehead Lifting
Daniel E. Rousso
INTRODUCTION
If the eyes are considered the windows to the soul, then the eyebrow is the leading edge of the aesthetic frame in which each window resides. Each brow imparts a diversity of facial expression while directly influencing the perception of facial harmony. As a result, considerable effort has been invested in the surgical treatment of brow position and shape. In 1919, Passot initially described elliptical excisions to raise the brow complex. Hunt subsequently described coronal, anterior hairline, and direct brow lift techniques in 1926. However, it has been during the last three decades that the treatment of the brow complex has received considerable attention and focus. During this time, a constellation of techniques have been described, some more successful than others.
The importance of addressing the ptotic brow, in conjunction with or prior to excision of redundant upper eyelid tissue, has now become the operative focus. As techniques have advanced, surgeons have sought improved methods for camouflaging scars. One such improvement, the trichophytic incision technique, allows for treatment of brow and forehead ptosis while preserving hair follicles along the incision site. The resultant scar is penetrated by the patient’s natural hair affording excellent camouflage and typically is very well tolerated by patients. In appropriately selected patients, the trichophytic brow lift is an effective technique for rejuvenation of the upper third of the face.
HISTORY
A complete history should be taken in conjunction with the consultation. This is usually facilitated in part by forms provided to the patient in advance of the visit. The patient’s overall health status must be considered in deciding his or her candidacy for elective surgery, which includes anticoagulation status, tobacco use, autoimmune status, anesthetic risk factors, and overall wound healing capabilities. Next, the surgeon learns the patient’s specific concerns and desires upon which recommendations for surgical correction are predicated. History of previous trauma, surgical interventions, facial nerve injury, and visual field deficits all contribute to the comprehensive development of an operative plan.
PHYSICAL EXAMINATION
A complete preoperative examination is performed by the surgeon during which anatomic and aesthetic principles are applied. Analysis of the forehead and brow requires consideration of multiple factors and aesthetic principles. The ideal forehead extends from the hairline to the glabella and should be in equivalent length to the midface, from glabella to the nasal base, and the inferior third of the face, from the nasal base to the menton. The typical distance from brow to hairline is 5 to 6.5 cm in women and 7 to 8 cm in men. An alternative estimate is about four fingerbreadths above the eyebrows. The ideal eyebrow should begin medially along a vertical
line drawn from the lateral alar margin of the nose. It should extend laterally to an oblique line that begins at the lateral alar margin and extends through the lateral canthus (Fig. 9.1).
line drawn from the lateral alar margin of the nose. It should extend laterally to an oblique line that begins at the lateral alar margin and extends through the lateral canthus (Fig. 9.1).
The shape and position of the eyebrows differ between men and women. In both sexes, the position of the lateral and medial ends of the eyebrows should be in close approximation. However, the lateral extent of the ideal female brow is higher. An inferior placement of the medial eyebrow confers an expression of anger or dissatisfaction, whereas a relatively inferior placement of the lateral eyebrow conveys the appearance of sadness or fatigue. Comparatively, the male eyebrow has a flat/horizontal shape and is located at or just above the orbital rim. The ideal female shape is observed as a gentle arch that peaks between the lateral limbus and lateral canthus. The medial aspect should be club shaped with a graceful taper laterally. The position is above the orbital rim, with the highest peak approaching 1 cm above the rim. The surgeon’s artistic eye must be employed in order to design the most pleasing shape for each face.
Careful consideration is given with regard to which of the different brow lifting technique’s is best suited for each patient. Every technique has its inherent advantages and disadvantages, and each is indicated for a specific group of findings. The height of the forehead and position of the hairline must be noted during the initial examination. This distance will play a significant role in the determination of the appropriate lifting approach. It is important to note if the patient has the natural expressive and resting tendency to spontaneously elevate the brows through inadvertent frontalis contraction. This elevation must be noted during the initial evaluation and brought to the patient’s attention as it contributes to an altered position of the brow. Some authors describe a maneuver in which the patient is asked to close the eyes and relax the brows at which point the surgeon stabilizes the position of the brow. The patient then opens the eyes and sees the true position of the brow. Others simply have the patient close the eyes for 20 seconds then open. We do not routinely employ these maneuvers, but we do place emphasis on evaluating for falsely elevated brow position during each consultation. Regardless of method employed, the surgeon is well advised to evaluate the true position of the brow complex prior to surgical planning.
INDICATIONS
Ptotic brows
High hairline
Adequate hair for scar camouflage
CONTRAINDICATIONS
Low hairline
Previous coronal brow lift
Male gender (relative)
PREOPERATIVE PLANNING
There are several popular techniques for brow lifting, each with their own indications (Fig. 9.2). The various pros and cons of open and endoscopic techniques have been debated in the literature, but there may be little difference in the long-term outcomes between such approaches. Puig and LaFerriere found no statistically significant difference in brow position between endoscopic, trichophytic, and coronal brow lifting techniques in their series at 35- to 56-month follow-up. Guillot and Rousso demonstrated a statistically significant difference in scalp sensation in the postoperative period between open and endoscopic techniques. This difference, however, was negligible after a period of 18 months. Ultimately, there are multiple techniques that achieve long-standing results and similar long-term morbidity. The key is ultimately choosing the best technique for each individual patient.
Endoscopic Brow Lift
Described in 1992 by Vasconez, the endoscopic technique quickly gained popularity. As a “minimally invasive” approach, the endoscopic technique avoids an incision extending across the entire length of the scalp. The incisions are typically 1.5 cm in length and hidden in the hair along the frontal and temporal scalp by about 1 to 1.5 cm behind the hairline. Many different suspension techniques have been described including mattress sutures, cortical tunnels, bone screws, absorbable suspension devices, bolster fixation, and fibrin glue. I prefer a suture suspension technique that avoids costly or cumbersome implants as well as the need for drilling bone. The endoscopic technique is very effective for patients with adequate hair to cover the incision sites and a normal to low positioned hairline. A high hairline presents two technical issues. First, the endoscopic approach can tend to bring the hairline higher, which works well in patients with normal to low hairlines but is not ideal in a patient with an already broad, tall forehead. Next, a high hairline requires a more posterior placement of the incisions in order to hide them within the hair. This placement can orient the incisions behind the curvature of the frontal skull making visualization of the supraorbital structures difficult with the rigid, linear endoscope. The endoscopic approach has a clear advantage in scar camouflage and has been demonstrated to yield durable results. Many surgeons currently apply this technique as their method of choice in appropriate candidates.
Coronal Brow Lift
The coronal brow lift technique has been in use for almost a century since it was described by Hunt in 1926. The incision is designed in curvilinear fashion approximately 4 to 6 cm behind the hairline. Elevation has been described in multiple different planes, but generally, I prefer a subgaleal plane. The coronal lift will raise the hairline and therefore should be reserved for patients who begin with a lower hairline. Forehead rhytids are typically better treated with a coronal rather than endoscopic technique, especially compared to endoscopic techniques with dissection in the subperiosteal plane. The coronal approach may afford some advantage over the endoscopic approach regarding correction of asymmetry, but the direct brow lift is the best choice for reliable correction of significant brow asymmetry. Patients undergoing the coronal lift tend to complain of prolonged numbness of the scalp compared to the endoscopic technique, although the long-term difference in scalp sensation is questionable. Coronal lifts should be performed with careful consideration in men.
Men prone to male pattern baldness may ultimately lose enough hair to expose the operative scar, which would be unsightly and very difficult to camouflage.
Men prone to male pattern baldness may ultimately lose enough hair to expose the operative scar, which would be unsightly and very difficult to camouflage.
Direct Brow Lift
The direct brow lift is designed either just above the eyebrow or in a deep rhytid above the eyebrow (a mid-forehead lift). A subcutaneous plane is developed, and the skin excision is designed to correct the ptotic brow. The skin excision can be customized to remove more tissues laterally or medially and ultimately provide more elevation where it is needed. This is very effective approach for correction of brow asymmetry. The orbicularis is typically suspended to the periosteum, and the skin is closed meticulously in layers. The primary disadvantage of the direct and midforehead lift is the scar placement. When designed properly, both techniques can heal with acceptable results but generally are not as well camouflaged as the other approaches. Men are generally considered better candidates for midforehead incisions, which avoid a scar across the length of the scalp. The deeper rhytids in men tend to hide the incisions to a greater degree compared to women. The scar above the brow complex is equally difficult to conceal in both genders.