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Ординатура / Офтальмология / Английские материалы / Advanced Surgical Facial Rejuvenation_Erian, Shiffman_2011.pdf
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A. Erian

a

Table 47.2 Botox vial dilutions

 

 

 

BOTOX®: Vial Dilutions

 

 

 

Saline diluents volume

U/mL

U/0.1 mL

 

1.0 mL

100.0

10.0

 

1.5 mL

66.7

6.7

 

2.0 mL

50.0

5.0

 

2.5 mL

40.0

4.0

 

3.0 mL

33.3

3.3

b

Fig. 47.15 Good result by injecting the corrugator and procerus for glabellar lines. (a) Before treatment. (b) After treatment

47.10 Endobrow

A relatively new technique to elevate the brow through a blepharoplasty incision using absorbable screws (LactoSorb®) has been described (Figs. 47.1747.19). The procedure is relatively easy to learn but requires a steep learning curve to perfect.

Through the blepharoplasty incision, one must elevate the brow and dissect to the periosteum. The

a

b

Fig. 47.17 The dissolvable screw and thread (LactoSorb

Endobrow Push screw)

 

Fig. 47.16 Botox injection for crow’s feet. (a) Before treatment. (b) After treatment

The dilution used by the author is 1 ml of saline to 50 units of Botox. While this works well, dilutions vary and many practitioners prefer different dilutions

(Table 47.2). Fig. 47.18 915–3007 LactoSorb® Hex Head Driver

47 Endobrow Lift

537

a

b

c

d

e

Fig. 47.19 (a) Initial screw placement should be determined by the surgeon. Drill a pilot hole using the 1.8 mm drill bit at the desired location for brow suspension. No tapping is required. (b) Load the Endobrow Push screw with suture passer onto the Hex Head Driver. If desired, the screw may be threaded with the suture at this step. (c) Position the screw into the pilot hole (perpendicular to the bone) and push straight

down until the screw is fully seated. No twisting is required during insertion. (d) Disengage the hex head from the screw after insertion by gently turning the Hex Head Driver clockwise. (e) Suture is easily passed through the screw head utilizing the suture passer (if screw is not already threaded with suture) and is fixed to both the periosteal tissue and the LactoSorb®

periosteum must be released from the bone, in addition to the arcus marginalis in a cephald direction, to allow the brow to be elevated. Two to three positions for the screws must be marked and positioned. It is vital to avoid injuring the temporal branch of the facial nerve. It is important to use the drill which has shoulders to prevent deeper penetration.

The screw must be inserted fully loaded with the stitch attached. The stitch must be tied at the chosen level and height. The results will be seen immediately on the operating table. The stitch will be secure in the periosteum and surrounding muscle, but one must be careful not to catch the tissues during closure.

A standard closure is used for the blepharoplasty incision.

The LactoSorb® Endobrow screw combines the push screw technology with a proven resorbable material. This allows for predictable resorption, requiring only two instruments for insertion. LactoSorb® Endobrow push screws are low in profile and resorb within 1 year. Designed specifically for the brow lift, the unique screw design features an eyelet in the screw head to allow insertion of the suture. The LactoSorb® Endobrow push screw has in many cases been found to afford quicker and easier brow lifting [15–18]. Results are excellent (Figs. 47.20 and 47.21)