Treatment of Severe Hemifacial Atrophy With Dorsal Thoracic Adipofascial Free Flap and Concurrent Lipoinjection

Treatment of Progressive Hemifacial Atrophy by Cartilage Graft and Free Adipofascial Flap Combined with Three-Dimensional Planning

BACKGROUND

Progressive hemifacial atrophy (PHA) is a rare disease characterized by progressive atrophy of skin, soft tissue, muscles, and underlying bone structures. For severe PHA patients with obvious bone deformities, skeletal framework reconstruction is needed in addition to soft-tissue augmentation. The authors propose a new combinatorial surgical method using rib cartilage graft and free adipofascial flap for restoring facial symmetry. To improve the surgical accuracy, preoperative three-dimensional planning and printing was used.

METHODS

Twelve patients with severe facial atrophy were included in the authors' study. Three-dimensional facial image analyses were performed preoperatively to quantify the facial asymmetry. Rib cartilages were harvested and sculptured to the appropriate shape created by three-dimensional planning and fixed to the atrophic bone. The circumflex scapular artery-based adipofascial flap was transplanted to repair soft-tissue deficiency. A residual small monitor flap was left with the adipofascial flap. A revision surgery was performed to perfect the repair if the contour was suboptimal 6 months postoperatively.

RESULTS

The adipofascial flaps survived in all 12 patients. All patients achieved good healing without complications. At 1 more year after surgery, the rib cartilage was still in position and rarely absorbed. The morphologic and volumetric difference between the affected side and the unaffected side was improved significantly postoperatively. All patients were satisfied with the results, and no more additional operations were required.

CONCLUSION

The combinatorial surgery of rib cartilage graft and free adipofascial flap in the setting of three-dimensional planning and printing can be a good choice in restoring facial symmetry in severe cases of PHA.

CLINICAL QUESTION/LEVEL OF EVIDENCE

Therapeutic, IV.

Flap Debulking and Secondary Revisions in Head and Neck Reconstruction: A Systematic Review with Clinical Applications

Flap debulking and secondary revisions are an integral factor in providing optimum outcomes to reconstructive patients. This review article summarizes systematically the available literature on flap debulking in head and neck reconstruction. The clinical applications of debulking techniques are discussed, including fractional direct excision, liposuction, and single-stage excision or planning with skin grafting. New technologies are also discussed.

"Soft Tissue Reconstruction in Progressive Hemifacial Atrophy: Current Evidence and Future Directions"

BACKGROUND

Progressive Hemifacial Atrophy (PHA) is a rare disorder characterized by gradual unilateral soft tissue atrophy in the face, which may also include clinically significant degeneration of underlying muscle and bone. In recent years, there has been a growing body of evidence regarding different soft-tissue reconstructive strategies in PHA, and the impact of intervention timing on disease progression. This article provides a comprehensive synthesis of the latest evidence in order to guide optimal management.

METHODS

A comprehensive multi-database search was performed through April 2020 using relevant search terms to identify clinical studies. Outcomes, complications, disease- and patient-related indications pertaining to different soft-tissue reconstructive strategies in PHA were collected and critically appraised.

RESULTS

35 articles reporting on a total of 824 PHA patients were evaluated; 503 (61%) were managed by microvascular free flaps, 302 patients (37%) were managed by autologous fat grafts, and 19 (2%) by pedicled flaps. A detailed synthesis of outcomes is presented herein, as well as a comparative evaluation of different microvascular free-flap options.

CONCLUSION

Soft-tissue reconstruction in PHA remains an evolving field. Operative decision-making is often multifaceted, and guided by specific volumetric, aesthetic and functional deficiencies. Serial fat grafting is the primary modality utilized for patients with mild soft-tissue atrophy, while microvascular free flaps widely remain the treatment of choice for reconstruction of large volume defects. There exists a growing role of graft supplementation to improve fat graft survival, while recent evidence demonstrates that early intervention may help curb disease progression.

Parry-Romberg Syndrome With Hemimasticatory Spasm: A Rare Combination

Parry-Romberg syndrome is a rare craniofacial disorder characterized by progressive hemifacial atrophy with systematic manifestations. The combination with hemimasticatory spasm is rare, with only 9 patients reported before. In this study, a study of a young male patient with Parry-Romberg syndrome and hemimasticatory spasm on his left side was presented. Radiologic examinations showed severe atrophy limited to subcutaneous tissue and electromyography demonstrated as hemimasticatory spasm. Injection of botulinum toxin type A was applied for the treatment of hemimasticatory spasm and after 2 separated injections, the patient was significantly relieved from symptom. The theory of focal demyelination of the trigeminal nerve peripheral brunches is the possible link between hemifacial atrophy and hemimasticatory spasm, although the pathogenesis of both diseases requires further study and current therapeutic methods are still limited to symptomatic treatments. Injection of botulinum toxin type A is an effective way to treat hemimasticatory spasm and autologous fat transplant is a promising solution to correct facial asymmetry.

Parry Romberg Syndrome

Parry-Romberg syndrome, or progressive hemifacial atrophy, is a rare disorder of unknown etiology. Patients present with unilateral atrophy of skin that may progress to involve underlying fat, muscle, and osseocartilaginous structures. Neurologic complications are common. After self-limited disease stabilization, various reconstructive options may be used to restore patients' facial symmetry. Serial autologous fat grafting has shown favorable results in reconstruction of mild or moderate soft tissue deficiency, but free tissue transfer remains the treatment of choice for severe disease.