Treatment of malar mound and festoon with fractional microneedle bipolar radiofrequency combined with 15% TCA peel

Post-Hyaluronic Acid Recurrent Eyelid Edema: Pathophysiologic Mechanisms and a Proposed Treatment Protocol

Background

Hyaluronic acid (HA) filler injections for facial augmentation are commonly administered but can lead to post-hyaluronic acid recurrent eyelid edema (PHAREE). The pathophysiology of this condition has not been fully understood.

Objectives

To report the successful treatment of PHAREE using serial hyaluronidase and fractionated radiofrequency microneedling, with additional carbon dioxide laser skin resurfacing in selected patients.

Methods

Five patients with PHAREE were treated with serial hyaluronidase injections and fractionated radiofrequency microneedling, with 2 patients receiving carbon dioxide laser treatment. The patients were followed up for a minimum of 24 months.

Results

All patients reported a resolution of PHAREE signs/symptoms with no adverse effects or recurrence. One patient demonstrated complete resolution after a single treatment; 4 required a series of treatments.

Conclusions

The proposed treatment protocol may provide advantages over hyaluronidase alone for PHAREE. The impermeable malar septum, vulnerable eyelid lymphatics, and potential immunogenicity of HA fragments likely contribute to PHAREE pathophysiology. Further research on pathophysiologic mechanisms is warranted.

Level of Evidence 4

Outcomes of Surgical Treatment of Malar Mounds and Festoons

BACKGROUND

Malar mounds (congenital) and festoons (acquired) are persistent puffiness in the prezygomatic space between the orbicularis retaining ligament (ORL) and zygomatico-cutaneous ligament (ZCL). Non-surgical treatments often yield unsatisfactory results. This paper aims to demonstrate a surgical approach for the treatment of malar bags by outlining the author's surgical technique of treating malar mounds and festoons and reviewing outcomes in 89 cases.

METHODS

Correction of malar mounds and festoons was achieved with subciliary skin-muscle flap, release of the ORL and ZCL, midface lift, canthopexy, and muscle suspension. We performed a retrospective study of 89 patients, all of whom had surgical correction of malar mounds or festoons in the past 10 years and a follow-up period of at least 6 months. This study was conducted over the course of the past year and involved reviewing patient charts in the office. Specifically, patient data spanning 2012 to 2022 were analyzed. The predictor variable in this study is the specific class of malar bags the patient has, as determined by the underlying pathophysiology. Outcome variables include the presence or absence of prolonged lid or malar edema, necessary re-excision of excess orbicularis oculi of the subciliary area, lid malposition, permanent visual changes, the need for additional non-operative treatment, and recurrence requiring reoperation.

RESULTS

The majority of patients presented with acquired festoons (81/89) with prior attempts of correction (49/89). The mean follow-up is 11.2 months. Persistent malar edema (> 6 weeks) was documented in 14 patients and mainly resolved with Medrol Dosepak (methylprednisolone) and hydrochlorothiazide. A two-proportion Z-test was conducted, comparing the proportion of patients with poor protoplasm who experienced postoperative malar edema to the proportion of those with excellent protoplasm who experienced postoperative malar edema. A p-value of 3.414e-7 was obtained, indicating a statistically significant difference of proportions between the two groups. Five patients received additional injections of deoxycholic acid and two needed fillers for smoother contour of the lower eyelids. Two patients with severe malar mounds required multiple reoperations including direct excision in one patient. One incidence of transient lid retraction was reported in a patient with previous facelift and facial nerve injury.

CONCLUSION

Malar mounds and festoons present a unique challenge to plastic surgeons. They are persistent in nature and require close-interval, long-term follow-up as additional injections and reoperations are warranted. Our approach to malar mound and festoon correction is safe and effective and provides long-lasting results.

LEVEL OF EVIDENCE IV

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Histologic and Immunohistochemical Evaluation of Radiosurgery in Strabismus Surgery in a Rabbit Model

PURPOSE

The aim of this study was to evaluate the use of monopolar radiosurgery (MRS) assisted strabismus surgery and to compare its histologic and immunohistochemical wound healing outcomes with conventional surgery.

MATERIALS AND METHODS

Superior rectus muscle resection was performed on 30 white rabbits with three different surgical muscle cutting techniques: monopolar radiosurgery (MRS group), conventional scissors preceded by bipolar electrocautery (BEC group), and conventional scissors with no cauterization (control group). Degree of tissue injury, bleeding, inflammation, and fibrosis, as well as wound healing rate (CD68+ cell number), were evaluated.

RESULTS

In CS group, hemorrhage scores were significantly higher than those in the other groups (MRS group: Z = 5.182; p < 0.001 and BEC group: Z = 4.463; p < 0.001) and MRS group had lower scores than BEC group; however, the difference was not significant (Z = 1.423; p = 0.211). The tissue injury score in BEC group was higher when compared with MRS, and the difference was statistically significant (p = 0.028). Median inflammation scores at days 1 and 21 were lowest in MRS group, but the difference was not statistically significant among groups (day 1; p = 0.115, day 21; p = 0.095). The median fibrosis score was higher in the control group, when compared with MRS, and the difference was statistically significant (muscle-sclera; p = 0.011 and muscle-conjunctiva: p = 0.003). The macrophage score (number of CD68+ cells) was lowest in CS group; however, the difference was not significant (p = 0.657).

CONCLUSIONS

Monopolar radiosurgery is a novel method for strabismus surgery and provides equivalent hemostasis effects and wound healing properties, compared with conventional methods, and enhances surgeon comfort, as muscle incisions are made in one step with clean surgical area.