Transumbilical breast augmentation evidence is the story of a clever remote-access idea that solved one problem while creating several others. The technique, usually called transumbilical breast augmentation (TUBA), places an inflatable implant through an incision at the umbilicus and creates a tunnel toward the breast pocket. The attraction is straightforward: the breast mound does not receive the access scar. The trade-off is equally important: the classic operation was designed around an empty, inflatable saline implant, and the remote route gives the surgeon less direct access to the pocket than an inframammary incision.
This review of transumbilical breast augmentation evidence explains how TUBA developed, why saline was central to its design, how the access route limits implant selection and what the literature can—and cannot—say about its current relevance. It concerns primary cosmetic augmentation. It does not treat historical case series as proof that TUBA is safer or better than current direct-access techniques, and it does not present TUBA as standard care for every patient.
What is transumbilical breast augmentation?
In classic TUBA, the surgeon makes an incision within or adjacent to the umbilicus and develops a working tunnel beneath the abdominal skin toward the lower chest. An empty inflatable implant is passed through the tunnel into a breast pocket, usually in a subglandular or submuscular relationship. The device is then filled with sterile saline through a fill tube, adjusted for the planned volume and checked for position and symmetry. Some versions use endoscopic visualization; others have been described as simplified nonendoscopic techniques.
The route is remote from the breast. That means there is no incision in the inframammary fold, around the areola or in the breast mound for the initial placement. It does not mean that the operation is scarless. The umbilical wound is still a surgical scar, and the abdominal tunnel, pocket dissection, implant filling and postoperative healing still create risks. A hidden scar is a patient-valued benefit, not a guarantee of less surgery or an easier revision pathway.
Access route and implant pocket should also be kept separate. “Transumbilical” describes where the surgeon enters. “Subglandular” and “submuscular” describe where the implant sits in relation to the breast tissue and pectoral muscle. A remote incision can be paired with different pocket plans, but the technical difficulty, soft-tissue coverage and ability to shape the lower pole are not identical across patients.
From an abdominal-route precursor to TUBA
The history does not begin with the modern acronym. In 1976, Planas reported introducing breast implants through tunnels made from an abdominal pocket during combined abdominal lipectomy and augmentation mammaplasty. His report involved 12 patients and described a selected combined procedure. It was an early demonstration that a breast implant could reach the breast through an abdominal route, but it was not the same as the later standalone endoscopic TUBA operation.
The best-known early TUBA description came from Johnson and Christ in 1993. They adapted ideas from operative endoscopy, suction-assisted lipectomy and tissue expansion. Their technique used an umbilical incision, a tubular instrument and an endoscope to create a path across the abdominal wall and under the breast fascia. The saline implant was inserted in a collapsed, coiled form, inflated after placement and adjusted before the fill tube was removed. Their initial report described 91 women and 188 implantations, with no significant bleeding in that series, while also noting early high implant position and temporary upper-abdominal swelling.
The 1990s and early 2000s produced a series of technical reports, patient-selection discussions and single-surgeon experiences. Pound and Pound described TUBA as a way to place inflatable implants in subglandular or submuscular positions, while acknowledging that only inflatable devices could be used and that increasing distance from the breast reduced control over pocket manipulation. Sudarsky reported 90 cases, with 70 patients available for follow-up; the results were encouraging within that practice, but the study remained an uncontrolled clinical series. A 2007 retrospective review of 245 procedures similarly reported favourable satisfaction and complication figures in selected patients.
By 2009, Handel’s review described TUBA as controversial and never widely adopted by plastic surgeons. That observation matters when reading older claims of rapid recovery or growing demand. Those statements describe the authors’ clinical experience and patient interest at the time; they are not population-level evidence that the technique became a universal or preferred approach.
Why saline was central to the original technique
The engineering logic of classic TUBA is the ability to insert an empty implant. A saline device can be folded or rolled for passage through a relatively small umbilical incision and tunnel. Once the shell is in the breast pocket, saline can be introduced through a valve and fill tube. The surgeon may then adjust the volume, which was presented as useful for intraoperative symmetry and for tailoring the final fill within the device’s specifications.
A prefilled implant creates a different problem. It is already full before insertion, so it cannot be reduced to the same compact shape. A prefilled silicone-gel implant is not designed to be rolled through the narrow classic TUBA tunnel, and a prefilled saline implant has the same access problem. This is why the older literature repeatedly describes TUBA as restricted to inflatable implants, usually saline. The limitation was not a marketing label; it followed from the physical relationship between the device, the incision and the tunnel.
Saline’s practical advantages should not be confused with universal aesthetic advantages. A saline implant can deflate relatively quickly if the shell or valve fails, making a volume change more apparent. Depending on fill, coverage and implant design, saline devices may also have visible or palpable rippling. Silicone gel has different handling, feel, rupture and monitoring considerations. The broader silicone-versus-saline evidence should therefore be discussed separately from the choice of access incision; a remote scar does not remove the trade-offs of the filler inside the implant.
Classic TUBA also made intraoperative sizing a constrained exercise. The surgeon could fill an implant to a planned volume and assess the result, but this is not the same as having a range of prefilled devices with different widths, profiles, shapes and shell characteristics immediately available for direct comparison. Volume adjustment cannot fully compensate for an implant whose base width, projection or shell design does not suit the breast footprint. The research literature on implant dimensions, base width and cc explains why a volume number is only one part of implant planning.
Implant selection and pocket-control limitations
Implant selection is where the remote route becomes clinically important. A direct inframammary incision generally gives the surgeon a short, open path to the breast pocket and permits the use of a broad range of prefilled devices, including silicone-gel implants, when the specific product and surgical plan allow it. The surgeon can see the pocket, control the fold, introduce the device and revise the space through the same access route.
Classic TUBA offers less direct control. The surgeon is working from a distance, and the tunnel can make it harder to judge medial, lateral and inferior boundaries. Endoscopy can improve illumination and orientation, but a camera does not create the same working angle as a direct incision. If the pocket is too high, too lateral or asymmetric, correcting it may be more demanding. If bleeding or a technical problem cannot be controlled adequately, conversion to a standard breast incision must be part of the consent discussion.
The limitations become more significant when the patient needs more than volume addition. Marked ptosis, pseudoptosis, a constricted lower pole, tuberous features, substantial asymmetry or a likely need for a lift may require skin adjustment, glandular reshaping or direct fold control. An implant inserted through the umbilicus cannot by itself remove excess skin or reliably reposition a low nipple. A large implant request may also increase the difficulty of safe passage, orientation and soft-tissue coverage.
Abdominal and umbilical anatomy matters as well. The incision must heal, the tunnel must be created without avoidable injury and existing scars or abdominal conditions must be assessed. These are not reasons to declare TUBA impossible in every patient; they are reminders that a breast-scar preference cannot be evaluated separately from the access tissues. The exact device, pocket, abdominal anatomy and surgeon’s experience must be considered together.
Have modern surgeons expanded TUBA beyond saline?
Yes, but the evidence needs careful wording. The statement “TUBA is saline-only” accurately describes the classic technique and most of its historical development. It is too absolute if applied to every later experimental modification. Lee and colleagues reported a modified endoscopic transumbilical approach for round cohesive silicone-gel implants in 42 women, placing the devices in a retropectoral pocket. The study reported transient periumbilical bulging in five patients, one hypertrophic umbilical scar requiring revision and conversion to another breast incision in three of 84 breasts because of capsular contracture.
A 2023 practical review described an endoscopically assisted transumbilical silicone technique and a chart review of 40 women aged 21 to 61 years. The implants were placed in a submuscular pocket, and the authors reported no capsular contracture in follow-up visits at 3, 6, 9 and 12 months. This is useful evidence that a modified route can be technically performed in selected patients. It is not a randomized comparison, it has a small sample and short follow-up, and it comes from a specific practice with a technique that may not be reproducible in every setting.
These studies show technical evolution rather than the disappearance of the original constraint. A surgeon may enlarge or modify the access, use endoscopy and develop a different insertion system, but that is no longer the simple classic TUBA concept of passing an empty saline implant through a small umbilical route. The more the technique is modified to accommodate prefilled silicone, the more important device-specific handling, incision size, tunnel control, training and conversion planning become.
What do outcome studies actually show?
The historical outcome literature is mainly composed of retrospective series and technical reviews. That evidence can show that experienced surgeons performed the operation and can describe complications, but it cannot prove that TUBA is safer than inframammary or transaxillary augmentation. Patients were selected by the operating surgeon, implant types changed over time and comparison groups were usually absent.
In Sudarsky’s 2001 series, 70 followed patients were graded as having very good, good or fair results. Four patients developed capsular contracture and five underwent reoperation. There were no implant ruptures, hematomas or infections in that reported follow-up group. The results are clinically interesting, but the study was a single-surgeon experience with incomplete follow-up and no matched control group.
Brennan and Haiavy’s 2007 retrospective review covered 245 TUBA procedures. Their reported complications included hematoma, umbilical wound infection, deflation, tunnel seroma, asymmetry and capsular contracture. The authors concluded that the observed complication rates were comparable with other methods, but their comparison relied on published external data rather than random allocation between access routes. Satisfaction was also influenced by implant location and firmness, showing that patient experience cannot be reduced to the presence or absence of a breast scar.
The newer silicone reports are important because they challenge the idea that the umbilical route is technically limited to saline forever. They are not strong evidence that TUBA has become a mainstream substitute for direct breast access. Small retrospective series, limited follow-up and highly selected patients are better interpreted as feasibility evidence. They tell a surgeon what may be possible with a particular device and technique, not what every patient should choose.
How relevant is TUBA today?
TUBA remains relevant as a historical and technical case study. It shows how implant design can shape surgical access: an inflatable device made a remote route possible, while prefilled devices made direct access more attractive. It also illustrates an enduring surgical trade-off between scar location and operative control. A patient may value an umbilical scar more highly than a scar beneath the breast, but that preference has to be balanced against implant selection, pocket control and future revision.
For a carefully selected patient, a surgeon with specific experience may still discuss a transumbilical option. The consultation should identify the exact implant and filler, explain whether the technique is classic saline TUBA or a modified silicone approach, describe the pocket and set out the circumstances in which conversion may be needed. It should also explain how a future problem—such as malposition, contracture, rupture, deflation or ptosis—would be treated. A primary umbilical incision does not guarantee that later surgery can use the same route.
It is also useful to compare TUBA with other remote-access techniques. The transaxillary endoscopic augmentation review explains how endoscopic visualization addressed some of the control limitations of an armpit approach and how current comparative evidence is interpreted. The incision evidence review provides context for direct breast access, contamination questions and patient-specific trade-offs. None of these routes is automatically best; the relevant comparison depends on anatomy, implant and goals.
Questions a patient should ask before considering TUBA
The right questions are more useful than the phrase “scarless breast augmentation.” Ask whether the proposed procedure is classic saline TUBA or a modified silicone technique. Ask for the exact implant manufacturer, filler, dimensions, profile, surface and approved use. Ask how the surgeon will control the pocket and the inframammary fold, and whether an endoscope is used routinely. Ask what happens if the implant cannot be positioned safely or if the breast is asymmetric after filling.
Ask where a future revision would be performed. If the answer is that a breast or inframammary incision may eventually be needed, that is not a failure of the original plan; it is realistic consent. Finally, ask how follow-up will be organized, how the implant record will be supplied and which symptoms require examination. The decision should reflect the whole care pathway, not only the location of the first scar.
Limitations of this evidence review
This is a narrative review, not a systematic review or meta-analysis. The historical reports describe different operations, devices, instruments and follow-up periods. Some early publications have limited abstracts, and technical reports may emphasise the author’s preferred method. The classic saline literature cannot be used to estimate the results of a modern modified silicone technique.
Most clinical evidence is retrospective, single-surgeon or selected-case evidence. There are few robust direct comparisons with inframammary or transaxillary access, and the studies differ in pocket plane, implant filler, implant generation, outcome definitions and follow-up completeness. Patient satisfaction may be high because avoiding a breast scar matters to the patient, but satisfaction alone does not establish superior pocket control or long-term safety.
The evidence also concerns primary cosmetic augmentation. It should not be transferred directly to reconstruction, revision surgery, congenital chest differences or patients who need a lift. Newer prospective comparative research, longer follow-up of silicone variants and regulator information about specific devices could change how the technique is interpreted.
Conclusion
Transumbilical breast augmentation is historically interesting because it linked a remote abdominal entry point with the engineering of an inflatable implant. The classic technique’s saline-only constraint was a logical consequence of inserting an empty device through a small umbilical route. That design offered a concealed breast scar and adjustable filling, but it restricted implant choice and made pocket control more difficult than with direct access.
Modern reports show that selected surgeons have adapted the route for silicone implants, yet the evidence remains limited, retrospective and highly dependent on patient selection and operator experience. The most responsible interpretation is that TUBA is a niche or historical technique with possible use in carefully selected cases—not a universal standard and not a shortcut around anatomy-based implant planning. A qualified plastic surgeon should compare it with inframammary and transaxillary alternatives, explain the filler-specific trade-offs and discuss the likely route of any future revision.
This article is educational. It cannot determine whether TUBA, a saline implant, a silicone implant or any other access route is appropriate for an individual patient.
Frequently asked questions
What is transumbilical breast augmentation?
Transumbilical breast augmentation, or TUBA, places a breast implant through an incision at the umbilicus and a tunnel toward the breast pocket. The classic technique uses an empty inflatable saline implant that is filled after placement. The umbilical scar is hidden in the navel, but the operation is not scarless.
Is classic TUBA limited to saline implants?
Classic TUBA was designed around inflatable saline implants because an empty shell can pass through the narrow umbilical route and be filled in the pocket. Later reports describe modified silicone techniques, but these are selected, technique-specific adaptations and do not remove the original implant-selection limitation from classic TUBA.
Can silicone implants be inserted through the umbilicus?
Small retrospective reports describe endoscopically assisted transumbilical placement of silicone-gel implants in selected patients. The evidence is limited by sample size, short follow-up, lack of a randomized comparator and dependence on the surgeon’s specific equipment and technique. Silicone placement through the umbilicus should not be treated as universally available or suitable.
Why did saline implants suit the transumbilical route?
An empty saline implant can be folded or rolled through a small incision and filled after it reaches the breast pocket. Filling can also allow some intraoperative volume adjustment. These advantages must be balanced against saline-specific issues such as deflation, rippling or palpability, which depend on the device and the patient’s tissue coverage.
What are the main implant-selection limitations of TUBA?
The classic route limits the surgeon mainly to inflatable devices and makes it harder to compare prefilled shapes, profiles and dimensions during surgery. A remote tunnel may also reduce direct control of the pocket and fold. The proposed implant must fit the patient’s anatomy; adjusting saline volume cannot correct every mismatch in base width, projection or soft-tissue coverage.
Is TUBA standard care for breast augmentation?
The available literature does not justify presenting TUBA as a universal standard. It remains a specialised and relatively uncommon option, supported mainly by historical reports, retrospective series and selected modern modifications. A surgeon’s experience, the patient’s anatomy, the exact device and the availability of a safe conversion plan are central to any discussion.
Does TUBA leave a scar?
Yes. The incision is placed at the umbilicus rather than on the breast, so the breast mound may avoid an access scar. Umbilical healing can still produce a visible, widened or raised scar, and the abdominal tunnel is still part of the operation. “Scarless” is therefore an inaccurate promise.
Could a later revision require a breast incision?
Yes. Contracture, malposition, rupture, deflation, ptosis or substantial pocket reshaping may be easier to treat through an inframammary or another direct breast incision. The initial remote access route should not be presented as a guarantee that every future procedure can be performed through the umbilicus.
Sources and references
The visible source list for this article is stored with its academic record and includes the abdominal-route precursor, the original endoscopic TUBA report, patient-selection and outcome series, the historical review and selected silicone modifications. Their different designs and follow-up periods should be considered when interpreting any result.