Early outcomes and risk factors for complications after facial alloplastic implant surgery: An ACS-NSQIP study.

Background: Facial implantology (FI) is a growing field in facial surgery that focuses on harmonizing and balancing facial features. Despite its increasing popularity, larger-scale studies on FI outcomes and risks are scarce.
Methods: The ACS-NSQIP (2008-2021) was queried to identify patients who underwent combined/isolated alloplastic FI surgery of the malar/mandibular region. Based on CPT codes (21125; 21270), procedures were subdivided into combined or isolated FI surgery of the malar or the mandibular region.
Results: The study population included 84 patients, of which n = 19 (23%), n = 10 (12%), n = 33 (39%), and n = 22 (26%) underwent combined malar, isolated malar, combined mandibular, and isolated mandibular FI surgery, respectively. Isolated malar (total n = 10) and mandibular FI surgery (total n = 22) patients had relatively high comorbidity rates with up to n = 6 (60%) active smokers and n = 9 (41%) with hypertension, respectively. Combined malar (n = 19) and mandibular FI surgeries (n = 33) had the highest complication rates with n = 3 (16%) and n = 5 (15%) patients experiencing any complications. For both isolated malar and mandibular FI procedures, n = 1 (10% and 4.5%) patient reported any complications.
Conclusion: In this study, we accessed the ACS-NSQIP database and found alloplastic augmentation for zygoma and mandible to be safe. Patients who underwent combined procedures and mandibular augmentation were more likely to show complications or require inpatient stay. Most alloplastic augmentations of mandible or zygoma were combined with other procedures (62%) which suggests that alloplastic facial implants (in the academic setting) are often used as an adjunct in the treatment of complex craniofacial disorders.
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