Zygoma Reduction in Korea: Cheekbone Reduction Surgery Guide

How Zygoma Reduction Surgery Works

광대 축소술 (gwangdae chuksosu, cheekbone reduction surgery) addresses prominent lateral cheekbones by physically cutting, repositioning, and fixing the zygomatic bone complex — the paired bones that form the cheek prominences and lateral arches of the face.

The zygoma has two distinct components relevant to facial width. The zygomatic body sits at the midface and creates anterior (forward-facing) cheek projection. The zygomatic arch extends laterally toward the ear and determines how wide the face appears when viewed from the front. A comprehensive reduction addresses both.

Surgery is performed under general anesthesia. The surgeon accesses the zygomatic body through an incision inside the upper gum line (intraoral approach), which leaves no external scar on the face. A second small incision — typically within the hairline or in the natural fold in front of the ear (pre-auricular area) — allows the surgeon to access and cut the zygomatic arch. Together, these two cuts free the zygomatic complex from its bony attachments.

Once freed, the complex is rotated inward, moved downward, or both, depending on the surgical plan. The repositioned bone is then secured using titanium plates and screws (fixation), which hold the new position permanently while bone healing consolidates the result over three to six months.

The technical difficulty of zygoma reduction lies in two factors. First, the facial nerve — specifically its zygomatic and buccal branches, which control cheek and lower eyelid movement — runs in close proximity to the surgical field. Careful nerve identification and protection is the surgeon’s primary intraoperative priority. Second, the freed bone segment must be repositioned with precision: too little movement produces an underwhelming result; malpositioning produces asymmetry that is difficult to correct secondarily.

Plastic surgery and dermatology collectively account for the largest share of procedures sought by international patients in Korea.² Korea’s concentration of facial contouring specialists — approximately 2,100 board-certified plastic surgeons registered with the Korean Society of Plastic and Reconstructive Surgeons (KSPRS; 대한성형외과학회, Daehan Seonghyeong Oegwa Haghoe)¹ — means that zygoma-specific surgical volume per clinic is meaningfully higher than in most other markets.

Technique Comparison: Osteotomy Types

The technique chosen for zygoma reduction determines the dimensions in which the bone moves, the extent of change achievable, incision placement, whether fixation hardware is required, and the nerve risk profile. Five approaches are in clinical use; the L-shaped osteotomy is the current Korean standard.

Simple bone shaving uses a rotating burr to grind down the surface of the zygomatic body. It requires no bone cuts and no fixation hardware. The trade-off is that it can only reduce anterior projection — the forward prominence — without changing lateral arch width. For patients whose primary concern is the lateral silhouette of the face, shaving is inadequate.

L-shaped osteotomy makes two cuts: one vertical cut through the zygomatic body (the “L” downstroke) and one cut through the zygomatic arch (the “L” horizontal arm). The freed segment is pushed inward and downward, then fixed with titanium plates. This achieves simultaneous reduction in both anterior projection and lateral width — the defining advantage over shaving. The arch cut is the highest-risk step because the facial nerve’s zygomatic branch runs close to the lateral arch.

3-point repositioning adds a third osteotomy to allow a greater range of three-dimensional movement, used when standard L-shaped repositioning cannot achieve the planned result due to arch prominence or anatomy. It extends dissection further along the nerve trajectory and is typically reserved for cases of very prominent arches or revision surgery.

Combined zygoma and mandible contouring addresses both the midface and lower face in a single general anesthesia session. This is appropriate when the patient’s overall face-width concern spans both the cheekbone level and the jaw angle level — common in patients seeking a comprehensive facial narrowing. Two nerve territories are at risk simultaneously, requiring a surgeon experienced in both planes.

Concurrent soft tissue suspension is not a separate osteotomy technique but an adjunct performed at the time of any of the above. Periosteal suspension or superficial musculoaponeurotic system (SMAS) plication — a tightening of the fibromuscular layer beneath the skin — compensates for the loss of bony support after the zygoma is reduced. It is most relevant for patients over 35.

Candidacy: When Zygoma Reduction Is Appropriate

The key pre-operative assessment is determining whether facial width is driven by bone, soft tissue, or both. A surgeon experienced in facial contouring will evaluate the zygomatic arch prominence on CT imaging alongside clinical examination of masseter bulk, buccal fat distribution, and skin elasticity before recommending zygoma reduction as the primary intervention.

Korea’s concentration of facial contouring specialists supports this diagnostic step. Gangnam-gu receives approximately 60% of medical tourists seeking aesthetic procedures,² giving patients in Seoul access to clinics with high combined case volume across zygoma, mandible, and soft tissue contouring — relevant when the decision requires comparing multiple treatment pathways.

Board certification verification is a practical candidacy step for international patients. KSPRS maintains a public registry allowing patients to verify a surgeon’s board certification by searching by name directly on the KSPRS website.¹ KSPRS board certification requires completion of six years of medical school, a four-year plastic surgery residency, and passage of KSPRS board examinations.¹ Operating without this certification constitutes an illegal medical act under Korean law.¹

Results and Longevity

Zygoma reduction produces permanent structural change. The repositioned bone heals in its new position, and the osteotomy sites consolidate over three to six months. Unlike injectable treatments that require maintenance, the skeletal change from a correctly executed and healed zygoma reduction does not reverse with time.

The practical qualifier on longevity is soft tissue aging. The face continues to age after surgery — skin elasticity decreases, soft tissue volume redistributes, and gravitational descent of cheek tissue occurs over decades. A patient who undergoes zygoma reduction at age 28 will have a permanently narrower bizygomatic skeleton, but the overlying soft tissue will age normally. This is not a complication; it is the expected trajectory of facial aging on a modified skeletal base.

The 6–14mm bizygomatic reduction achieved with L-shaped osteotomy is the primary quantifiable result. The visual impact of this change depends on three variables: the degree of starting prominence (patients with very prominent arches see the most noticeable change), soft tissue distribution over the reduced bone, and the proportional relationship to the rest of the face — particularly the mandible width and forehead width, which are unchanged by isolated zygoma reduction.

Swelling is the dominant short-term variable. Significant post-operative swelling is present for the first four to eight weeks and resolves gradually over three to six months. Asymmetric swelling resolution — where one side appears to reduce faster than the other — is common and does not indicate asymmetric surgical outcome. Patients should plan for an opaque evaluation window of three to six months before the result is clearly visible, and a full twelve months before final assessment.

Revision surgery for zygoma reduction is technically demanding and carries higher nerve risk than the primary procedure due to scar tissue in the surgical field. Choosing a surgeon with documented high-volume zygoma experience reduces — but does not eliminate — the probability of needing revision.

Recovery Timeline

Zygoma reduction recovery follows a predictable sequence, but the timeline for meaningful result visibility is longer than most patients expect before consulting.

Days 1–3: Patients remain in the surgical facility or a nearby recovery residence. Swelling increases sharply in the first 48 hours — this is normal and expected. The face will appear significantly larger, not smaller, during this phase. Pain is managed with prescribed analgesics. Head elevation is maintained continuously to reduce fluid accumulation. Intraoral incisions are present; a liquid and soft-food diet begins immediately.

Days 4–10: Swelling peaks and begins to stabilize. Bruising is visible and migrates downward toward the jaw and neck. Most patients are ambulatory and managing independently by day five. A follow-up imaging review (typically X-ray) confirms fixation plate position. Patients cleared at this visit are suitable for departure from Korea; the minimum recommended stay is 10–14 days from surgery.

Weeks 2–6: Visible swelling decreases week by week but remains significant. Patients return to desk work and light activity. Strenuous exercise, contact sports, and any activity risking facial impact are restricted. Intraoral incisions are fully closed by weeks two to three. Facial numbness — from temporary nerve compression or traction during surgery — is common during this phase and typically resolves within three months.

Months 3–6: The face width change becomes progressively visible as swelling clears. Most patients see a clearly changed lateral profile by month three; the result sharpens through month six. Titanium fixation plates remain in situ permanently in most cases; removal is performed only if the hardware becomes symptomatic, which is uncommon.

Month 12: Final result assessment. Bone healing is complete, soft tissue re-draping is complete, and any residual nerve symptoms that are going to resolve have resolved. This is the appropriate point for before-and-after documentation and, if relevant, revision consultation.