Skeletal Contour · Procedure

A narrower waist,
without removing ribs.

RIBXCAR reshapes the lower rib cage instead of resecting it. Through punctures rather than an incision, and under real-time ultrasound, the outer cortex of the lower ribs is scored with an ultrasonic instrument and the ribs are angulated inward. The bone stays. Its shape changes.

It exists because some waists cannot be narrowed with liposuction. If the distance and angle between your lower ribs and your pelvis leave no room for a curve, removing fat will not create one — and patients who have already had liposuction and still see a straight waist are usually describing a skeletal limit, not a surgical failure.

Definition

RIBXCAR is a skeletal waist procedure that narrows the waist by scoring the outer cortex of the lower ribs with an ultrasonic instrument and angulating them inward under real-time ultrasound, rather than resecting them.

Fee¥2,200,000Surgical fee, incl. tax. Anaesthesia and tests additional
Stay in Japan2 weeksMinimum, after surgery
AnaesthesiaGeneral¥165,000, additional
Final result~6 monthsOnce swelling has fully resolved

Origin

Whose technique this is.

RIBXCAR was developed by Dr. Raúl Manzaneda Cipriani in Lima, Peru, founder of AX — Aesthetic Xpert Scientific Lab. Dr. Higuchi did not invent it. He performs it as AX Asia Ambassador, and teaches it to other surgeons in Japan through the seminar programme AX runs.

We say this plainly because it is worth more to you than a claim of invention would be. Skeletal waist contouring is performed by a small number of surgeons worldwide, techniques are not standardised between countries, and the single most useful question you can ask any surgeon offering it is where they were trained in it, and by whom. Here the answer is: by the organisation founded by the person who developed it.

Candidacy

Who it suits, and who it does not.

Careful selection is the strongest safety measure this operation has. The criteria below come from the published series, and are assessed individually rather than applied as a checklist.

Likely to suit you if

  • Your waist reads as straight in outline even at a stable, healthy weight
  • You have already had liposuction of the waist and the silhouette did not change as you hoped
  • Your body mass index is under 30 and your visceral fat is low
  • Your skin has good elastic recoil, so it can re-drape onto a narrower framework
  • You are in good general health, with low anaesthetic risk
  • You are able and willing to wear the post-operative compression exactly as instructed

Not appropriate if

  • Your body mass index is 30 or above, or your visceral fat is high — visceral fat matters more here than BMI does
  • Your skin has lost its recoil; it will not follow the new skeletal line
  • You have significant heart, lung or clotting disease
  • You have a thoracic history — previous chest surgery, pleural adhesion, or a spontaneous pneumothorax — that makes work near the pleura unwise
  • Your goal is a specific number on a tape measure rather than a proportion that suits your frame

Being told you are not a candidate is a legitimate outcome of a consultation, and sometimes the right one. Where a different plan — soft-tissue contouring alone, or weight optimisation first — would serve you better, that is what you will be told.

The Operation

What actually happens.

  1. Marking, standingYour costal margin and iliac crest are identified and drawn with you upright. The vertical distance and angle between those two edges determine how high and how deep a waistline can sit on your particular skeleton.
  2. Ultrasound before anything elseThe rib course, its depth, and the position of the pleura are checked in real time before any instrument is introduced. This is what separates the modern operation from earlier versions guided by touch.
  3. Access through puncturesPercutaneous punctures rather than an incision. This is why the technique does not leave the scar associated with open rib resection.
  4. Corticotomy with a piezotomeAn ultrasonic instrument that cuts bone but spares soft tissue, so the muscles that give the waist its functional strength are not divided. The outer cortex only is scored.
  5. Angulation, confirmed by ultrasoundThe ribs are angulated, and the endpoint is defined by what the ultrasound shows — not by the audible “clack” that surgeons once treated as the sign of completion. In one study that sound was absent in ten per cent of cases in which ultrasound confirmed the fracture was already complete.
  6. Deep-layer liposuction of the waistAlmost always performed at the same time. A remodelled rib cage under an untouched layer of deep fat will not show on the surface; the skin has to be able to re-drape onto the new framework. This is quoted separately.
  7. FixationStructured compression is applied before you leave theatre and is maintained afterwards. The fixation is not an accessory to this operation. It is part of it.

Recovery

What the two weeks look like, and the months after.

The compression is not optional

Once the ribs have been remodelled and the deep fat layer cleared, the soft tissue has to readapt to a new framework. External compression holds the ribs in their narrower configuration while that happens.

In a prospective series of 328 patients, of the 12.5 per cent who reported pain, more than half of that pain was attributable to misuse of the corset rather than to the fracture itself. If you are not going to wear it as instructed, this is not the right operation for you — and it is better to establish that before surgery than after.

Evidence

What the published data shows.

You should be able to see the numbers rather than be told the operation is safe. These come from peer-reviewed studies, and we have included the least flattering one as well as the favourable ones.

StudyFinding
Multicentre cohort, 3,805 patients, 8 countries, one year of follow-upMean waist reduction 11 cm; mean angular reduction 10 degrees across ribs 10, 11 and 12. Major complications: 4 pneumothoraces and 1 haemothorax. All were managed conventionally and resolved without lasting functional consequence in the documented cases.
Prospective cohort, 328 patients, single surgeon, one-year clinical and imaging follow-upFracture extending through both cortices in 4.6 per cent, mostly within the first 20 days. Pain in 12.5 per cent, of which more than half related to corset misuse. No pneumothorax or haemothorax. At one year, 98.2 per cent showed satisfactory healing.
Independent global survey of rib remodeling techniques, 2,351 patient recordsOverall complication rate 3.7 per cent across several techniques. Pneumothorax was rare at 0.17 per cent — and in that dataset occurred only in RibXcar cases. The authors conclude that in the hands of a well-trained surgeon with an adequate learning curve, these procedures can be considered safe.

These figures describe published study populations, not results at this practice, and they are not a prediction of your individual outcome. Full citations are listed at the foot of this page.

Why the surgeon’s background matters here

Read the table again and notice what the serious complications are. They are not aesthetic complications. They are thoracic ones.

Before he performed a single aesthetic case, Dr. Higuchi spent eighteen years in thoracic surgery and lung transplantation. The chest wall and the pleural space were his daily working anatomy for most of his surgical career, and recognising and managing a pneumothorax was routine rather than exceptional. That is not a marketing point. It is the specific competence this particular operation happens to require.

Fees

What it costs.

ItemFee (JPY, incl. tax)
RIBXCAR — rib remodeling¥2,200,000
FRONTXRIB — anterior rib contouring¥2,200,000
RIBXCAR × FRONTXRIB — combined¥4,400,000
General anaesthesia¥165,000
Standard set (anaesthetic, medication, compression garment)¥66,000
Blood tests¥11,000

Deep-layer liposuction of the waist is almost always performed with rib remodeling and is quoted separately — see the full fee schedule. Fees are standard prices, not monitor prices. Your written quotation is the binding figure. Flights and accommodation are not included.

One point specific to this procedure: it is not covered by the one-year guarantee that applies to VASER liposuction, VASER 4D, Condense Rich breast augmentation and gynecomastia surgery. We would rather tell you that here than let you assume otherwise.

Risks

What can go wrong.

This is elective surgery on the skeleton. It is substantially more invasive than soft-tissue contouring, it is not covered by health insurance in Japan, and its outcome cannot be guaranteed.

Questions

Frequently asked.

Are my ribs removed?

No. RIBXCAR reshapes the lower ribs rather than removing them. A corticotomy is made on the outer cortex only, the rib is angulated, and the inner cortex and periosteum are left intact, so the thoracic cage keeps its structural continuity. Older approaches to waist narrowing removed the eleventh and twelfth ribs; this is a different operation.

Will I have a scar?

The technique is performed through percutaneous punctures rather than an incision, so it does not leave the scar associated with open rib resection. Where liposuction is combined with it, the usual small liposuction access points also apply.

How much waist reduction is realistic?

In a multicentre study of 3,805 patients, the mean waist reduction was 11 cm and the mean angular reduction across ribs 10, 11 and 12 was 10 degrees. That describes an average across a study population, not a promise. Your own result depends on your skeleton, your soft tissue and your skin, and is estimated individually at consultation.

How long do I need to stay in Japan?

Plan for at least two weeks after surgery. That period covers early recovery, management of the external fixation, and at least one in-person follow-up before you are cleared to fly. Your arrival date before surgery is set separately in your written plan.

What does RIBXCAR cost?

The surgical fee is ¥2,200,000 including tax. General anaesthesia, the standard post-operative set and blood tests are additional. Rib remodeling is usually combined with deep-layer liposuction of the waist, which is quoted separately. Your written quotation states the total.

Is it safe?

It is a real operation with real risks, and the serious ones are thoracic — pneumothorax and haemothorax. In the multicentre series of 3,805 cases there were four pneumothoraces and one haemothorax; an independent survey of several rib remodeling techniques put pneumothorax at 0.17 per cent of cases. These are uncommon but not zero, and patient selection and surgeon experience are what keep them uncommon.

Who is not a candidate?

Published criteria exclude a body mass index of 30 or above and visceral fat of 13 per cent or more, and the operation is not appropriate where skin elasticity is poor, where there is significant heart, lung or clotting disease, or where a previous thoracic condition makes work near the pleura unwise. Willingness to wear the post-operative compression as instructed is also a genuine criterion, not a formality.

Who developed this technique?

RIBXCAR was developed by Dr. Raúl Manzaneda Cipriani in Lima, Peru, founder of AX — Aesthetic Xpert Scientific Lab. Dr. Higuchi performs it as AX Asia Ambassador and teaches it to other surgeons in Japan.

References

Selected literature.

Retrieved from PubMed. The figures quoted above come from these studies, which describe study populations authored by others rather than results at this practice.

  1. Manzaneda Cipriani RM, Duran H, Adrianzen GA, et al. A Multicenter Cohort Study of 3805 RibXcar Cases: Safety and Efficacy in Incisionless Rib Remodeling. Plast Reconstr Surg Glob Open. 2026;14(7):e7929. doi:10.1097/GOX.0000000000007929
  2. Manzaneda Cipriani RM, Duran H, Adrianzen GA, Flores E, Romero Algara E, Mendoza Guerra C. Analysis of Bicorticality in a Cohort of Post-RibXcar Patients: A Clinical and Imaging Follow-up Study. Aesthet Surg J. 2026;46(7):737–744. doi:10.1093/asj/sjag012
  3. Aguilar HA, Hoyos AE, Ramirez B, et al. Global Survey on Rib Remodeling Techniques: Assessing Complications and Safety in Waistline Contouring. Plast Reconstr Surg Glob Open. 2026;14(4):e7609. doi:10.1097/GOX.0000000000007609
  4. Manzaneda Cipriani RM, Duran Vega H, Cala Uribe L, Viaro M, Adrianzen GA, Botelho DL. Waist Remodeling without Incision, with Ultrasound-guided Monocortical Fracture. Plast Reconstr Surg Glob Open. 2023;11(12):e5499. doi:10.1097/GOX.0000000000005499
  5. Manzaneda Cipriani RM. Is “Clack” Enough? Rib Remodeling Guided by Ultrasound. Plast Reconstr Surg Glob Open. 2024;12(5):e5843. doi:10.1097/GOX.0000000000005843

Next

Find out whether it suits you.

The consultation is held online, in English, before you commit to any travel. You will be told honestly what is achievable for your skeleton — including, where it applies, that a less invasive plan would serve you better.

Start an enquiry Costs, stay and process
Important Notice RIBXCAR is elective aesthetic surgery and is not covered by health insurance in Japan. Outcomes, recovery time and risks vary between individuals and cannot be guaranteed. The fee shown is the standard price in Japanese yen including consumption tax, is current as of August 2026 and is subject to change; general anaesthesia, the standard post-operative set, blood tests and any associated liposuction are additional, and your written quotation is the binding figure. Potential risks and side effects include, but are not limited to, pneumothorax, haemothorax, fracture extending through both cortices, chronic pain, non-consolidation or irregular callus formation, pain on breathing or twisting, compression-related pressure injury and hyperpigmentation, asymmetry, contour irregularity, seroma, haematoma, infection, changes in skin sensation, and complications of anaesthesia. Procedures that address the skeleton are significantly more invasive than liposuction alone and are offered only after thorough assessment and detailed informed consent. This procedure is not covered by the one-year guarantee that applies to certain other procedures. Clinical figures cited on this page describe published study populations authored by others; they do not describe results at this practice and are not a prediction of individual outcome. Your suitability will be assessed individually during consultation.