Facial contouring surgery in Korea: what V-line means

V-line is a commercial name, not a clinical one. What sits underneath it is maxillofacial bone surgery: cutting the angle and lower border of the mandible with a saw, sliding or reducing the chin, and sometimes repositioning the cheekbones as well. This is the most serious category of cosmetic operation offered in Korea, and the gap between how it is marketed and what it is remains the single most useful thing to understand before a consultation.

V-line is a marketing name for bone surgery

The operations that make up lower-face contouring are named individually in the literature. Mandibular angle reduction, or angleplasty, removes the flared corner of the jaw. Genioplasty cuts and repositions the chin. Reduction malarplasty, or zygoma reduction, moves the cheekbone complex inward through osteotomies of the zygomatic body and arch. A 2009 review in Seminars in Plastic Surgery by surgeons at two Korean university hospitals identifies zygoma reduction and angle reduction as the two most popular contouring operations in Asia, and describes the approaches as either intraoral or through external skin incisions.

A 2026 narrative review in JPRAS Open sets out how much variation hides inside the single phrase. Mandibular angle osteotomy techniques differ in the starting point, end point and trajectory of the cut — long curved osteotomy, en-bloc angle-body-chin ostectomy, U-shaped osteotomy, V-line ostectomy — with outer cortex reduction and partial masseter muscle resection added in some cases. The review’s conclusion is that these should be selected against an individual’s skeletal anatomy rather than applied as a uniform reduction, and that the choice of design should be guided in part by the surgeon’s own technical experience.

That is a different class of undertaking from an eyelid or a nose. Soft-tissue surgery can often be revised. A bone that has been resected cannot be put back, and the review notes that restoring over-resected contour is its own reconstructive problem.

Numbness is a recognised outcome, not a rare accident

The inferior alveolar nerve runs inside the mandible and exits at the mental foramen to supply sensation to the lower lip and chin. Lower-face contouring works directly around it.

A 2024 clinical study in Clinics and Practice, which measured the distance from the mandibular angle to that nerve on CT in 100 patients in order to define a safe resection range, summarises the reported complication burden: numbness of the lower lip from inferior alveolar nerve injury, swelling or haematoma, haemorrhage, infection, unfavourable fracture, sagging face, secondary angle formation and facial asymmetry, reported in 3.49 to 11.1 per cent of cases. The range is wide because it pools different techniques and different series, and it should be read as a signal of magnitude rather than a precise probability.

The JPRAS Open review adds texture on which techniques carry which risk. En-bloc osteotomy is associated with a relatively higher incidence of temporary lower-lip numbness, attributed to extensive soft-tissue dissection and intraoperative traction rather than to cutting the nerve itself. Curved osteotomy performed with an oscillating saw carries a chance of deviation and unintended ramus fracture, an outcome the review describes as strongly influenced by the surgeon’s experience. Patients with a low-positioned inferior alveolar nerve canal are a specific anatomical group for whom the standard designs are less safe. Partial masseter resection, where performed, brings its own risk of vascular and neural injury.

The earlier Seminars review lists the angleplasty complications plainly: bleeding, haematoma, infection, asymmetry, undercorrection, overcorrection, condylar fracture and facial nerve palsy. It calls condylar fracture a serious complication, noting it can follow blind angle ostectomy or the use of an osteotome instead of a saw, and that an uncontrolled fracture can extend into the condylar neck.

Anaesthesia is where the recorded deaths cluster

In February 2026 the Korea Herald reported a National Forensic Service analysis of autopsy records, published in the Korean Journal of Legal Medicine, which identified 50 deaths linked to cosmetic surgery between 2016 and 2024. Face and neck surgery accounted for 26 of them and liposuction for 11. Nearly half of all the deaths, 23, were attributed to anaesthesia, and face and neck surgery patients were the most likely to die of an anaesthesia-related cause, with 12 cases.

The setting mattered more than the procedure. Twenty-two of the anaesthesia-related deaths occurred at clinic-level institutions — fewer than 30 beds, primarily outpatient — against one at a university hospital. A specialist anaesthesiologist was present in the operating room in only six of those cases. The researchers said the true figure is likely higher, because the data counts only deaths that were autopsied and attributed directly to the surgery, and argued that safety and emergency-care standards in cosmetic surgery should match those of a regular operating room. Fourteen of the 50, 28 per cent, were foreign nationals.

None of that is specific to contouring, and “face and neck surgery” is a broad category. Read it for what it does establish: for operations on the face under anaesthesia, the presence of a separately qualified anaesthetist and the institution’s capacity to manage an emergency are not incidental details.

Bleeding is the related concern. Reporting on jaw surgery in September 2013, the Korea Herald quoted a professor of oral surgery at Ewha Womans University Hospital warning that bone-cutting procedures were not devised for cosmetic purposes and that patients should confirm whether a hospital has anaesthetists resident around the clock, because emergencies after jaw surgery often occur at night. That article concerned double-jaw (orthognathic) surgery, which is a distinct and larger operation than contouring, and its figures are more than a decade old. The point about overnight cover has not aged.

Two specialties operate on the same bone

Facial bone surgery in Korea is performed both by plastic surgeons and by oral and maxillofacial surgeons. This publication takes no position on which is preferable, and the question is worth asking for a reason that has nothing to do with rivalry.

An editorial in the Journal of the Korean Association of Oral and Maxillofacial Surgeons argues that some surgeons performing maxillofacial surgery focus on aesthetics and neglect function, and that operating without a sound understanding of dental occlusion and the temporomandibular joint can be followed by malocclusion, temporomandibular disorder, condylar displacement, disc displacement, osteoarthritis and progressive condylar resorption. It is a partisan document from one specialty’s journal. It is also a precise description of what can go wrong when the bone is treated as a shape rather than a working joint.

The practical version of the question is short. Ask which board certification the operating surgeon holds, how many of this specific operation they perform in a year, whether your occlusion will be assessed before surgery, and what happens if your bite changes afterwards. Korea’s professional register for plastic surgery specialists is maintained by the Korean Society of Plastic and Reconstructive Surgeons. Any licensed doctor in Korea may legally perform cosmetic procedures, which is why the certificate rather than the job title is the thing to verify.

Swelling runs in weeks, sensation in months

Recovery from bone surgery is not a fortnight. On lower-lip sensation, a 2017 account of mandibuloplasty technique in Plastic and Reconstructive Surgery – Global Open states that mental nerve symptoms rarely occur and that most patients with numbness and tingling recover without treatment in six months to two years. That is reassuring about eventual recovery and honest about duration: the normal course is measured in seasons.

Diet follows the jaw. Where a condylar fracture occurs, the Seminars review notes that a linear fracture is treated with intermaxillary fixation for four weeks — the jaws held together — with a displaced fracture potentially requiring open reduction first. That is the complication pathway rather than the expected one, but it defines the worst case you are consenting to. In the ordinary course, expect the surgical team to specify a liquid then soft diet and a period of restricted jaw movement, and ask for those instructions in writing before you agree to a date, because they determine whether you can realistically be alone in a hotel.

What to get in writing before the day

Declared prices for non-covered care are published by institution in the Health Insurance Review and Assessment Service database, which lags behind actual price changes but gives you a reference point before you walk in. On the CCTV right, the requirement took effect on 25 September 2023, footage must be kept for at least 30 days, and as the Korea Times reported the patient or guardian has to ask for the recording. Health Ministry guidance permits refusal in emergencies and where recording is judged to disrupt the operation, an exemption patient groups consider too loosely drawn.

If a dispute follows, the Korea Medical Dispute Mediation and Arbitration Agency mediates medical disputes, is open to foreign nationals, aims to conclude within about 90 days, and produces agreements with the effect of a court settlement. Its free line is 1670-2545, weekdays 09:00 to 18:00.

Before you book

Treat the consultation as a technical interview rather than a sales meeting, and do not accept a single number for several operations. Read whether plastic surgery in Korea is safe for how the regulation and the incident record actually work, and how to choose a clinic in Korea for verifying a surgeon’s certification. The checklist collects the written items above in a form you can hand across a desk.