The Baker Grades of Capsular Contracture and What Each Grade Means for Treatment

Every breast implant is surrounded by a layer of scar tissue that the body forms around it. This is normal and expected. In a proportion of patients that layer thickens and tightens over time, which is called capsular contracture. It is the most frequently discussed long-term complication of breast augmentation surgery in Sydney, and it is graded, because the grade is what determines whether anything needs to be done. This article sets out what each grade means.

What Is Capsular Contracture?

After an implant is placed, the body walls it off with a capsule of fibrous tissue. Ordinarily that capsule stays thin and soft, and the implant continues to feel and move naturally. Breast implant capsular contracture occurs when the capsule contracts around the implant, squeezing it. The implant itself does not change, but the tissue around it does, which alters how the breast feels, how it sits and in some cases whether it is comfortable.

It can develop within the first year or many years after surgery, and it can affect one side without the other. The exact mechanism is not fully established, though low-grade bacterial contamination of the implant surface, bleeding around the implant at the time of surgery and individual healing tendency are all thought to contribute.

Why Grading Is Used

Capsular contracture grades give the surgeon and patient a shared vocabulary for something otherwise hard to describe. A patient reporting a hard breast implant may mean anything from a slight change in feel to significant distortion and pain, and those situations are managed very differently. The Baker scale, in use since the 1970s, separates them into four grades based on what can be felt and seen and whether there is discomfort. The capsular contracture grades below are the ones referenced in most surgical discussion.

The Baker Grades of Capsular Contracture

Grade I

The breast looks natural and feels soft. The capsule is present, as it is in every patient, but it has not thickened or tightened in any way that can be detected. This is the normal state after augmentation and is not regarded as a complication.

Grade II

The breast looks normal but feels firmer than expected on examination. The change is detectable to the examining hand rather than visible to anyone looking. There is no distortion of shape and no pain.

Grade III

The breast feels firm and the shape has visibly changed. The implant may sit higher on the chest than it should, appear rounder or more spherical than the surrounding tissue, or look different from the other side. There is still no significant pain at this grade.

Grade IV

The breast is firm, visibly distorted and painful or tender. The tightening has progressed to the point of causing symptoms. This is the grade most likely to prompt a patient to seek review promptly.

What Influences the Risk

Reported rates vary considerably between studies and depend on implant type, surgical technique, follow-up period and how the condition was graded, so a single figure is not meaningful. Factors generally associated with a higher likelihood of breast implant capsular contracture include a history of contracture on the same side, bleeding or fluid collection around the implant after surgery, infection, radiotherapy to the chest, and implant position and surface characteristics.

Implant placement relative to the chest muscle is one of the variables surgeons weigh, and that decision is discussed further in this article on implant placement above or below the muscle.

How Each Grade Is Managed

Grade I requires nothing. Grade II is usually monitored, since a hard breast implant without distortion or symptoms does not necessarily progress, and reviewing it over time avoids intervening unnecessarily. Regular review is part of ongoing care after augmentation, as discussed in this article on long-term considerations after breast augmentation.

Grades III and IV are where surgery is typically considered, because the change is established and, at Grade IV, symptomatic. Non-surgical approaches including massage protocols, medications and ultrasound-based treatments are described in some settings, though the evidence supporting them is limited. Whether any has a role in a particular case is a matter for consultation rather than a general rule.

When Breast Implant Revision Is Considered

Surgery for established contracture involves addressing the capsule itself, not simply exchanging the implant, because leaving a contracted capsule in place makes recurrence likely. Depending on the findings, this may mean releasing the capsule, removing part or all of it, changing the implant pocket, changing the implant, or removing the implant without replacement.

Breast implant revision procedures of this kind are more involved than the original augmentation and carry a higher rate of further complications. Recurrence after revision is possible, and patients who have had contracture once are more likely to develop it again. What is appropriate depends on the grade, the anatomy and the patient’s own priorities, and planning for breast implant revision in Sydney is therefore individual rather than standardised.

Risks and Considerations

Both breast augmentation and revision surgery carry the general risks of surgery and anaesthesia along with procedure-specific risks. These include bleeding or collection of blood around the implant, fluid collection, infection, altered or reduced nipple sensation, implant malposition, rippling or visible implant edges, asymmetry, capsular contracture itself or its recurrence, implant rupture, permanent scarring, and the possibility of further surgery over time. Implants are not lifetime devices.

Results vary between individuals and cannot be guaranteed. A referral is required before proceeding, and a cooling-off period applies between consultation and the decision to proceed. Suitability is determined through an individual consultation with a Registered Specialist Plastic Surgeon.

What to Discuss at Consultation

Useful questions include which grade has been identified and on which side, whether the change is being monitored or treated, what the proposed surgery would involve for the capsule specifically, how likely recurrence is in your circumstances, what the position is on cost if further surgery is needed, and what warning signs should prompt a call to the rooms between reviews.

Pure Aesthetics consults from two locations: Sydney City (Level 6, 149 Macquarie Street, Sydney NSW 2000) and Macquarie University (Suite 302, 2 Technology Place, Macquarie University NSW 2109). Individual results vary, all surgery carries risks, and a second opinion should be sought before proceeding.

Frequently asked questions

What does capsular contracture feel like?

Most people notice the breast becoming firmer than it was, sometimes with a change in shape, position or symmetry. At higher grades it can be tender or painful. Because the change is often gradual, it is frequently picked up at a routine review rather than noticed suddenly.

Can capsular contracture happen years after surgery?

Yes. It can develop within the first year or many years later, and it can affect one breast and not the other. This is one of the reasons ongoing review after augmentation is recommended rather than assuming no news is good news.

Do all the capsular contracture grades need treatment?

No. Grade I is the normal state after augmentation. Grade II, where the breast feels firm but looks normal and is not painful, is usually monitored. Surgery is generally considered at Grades III and IV, where shape has changed or there is discomfort.

Can a hard breast implant be treated without surgery?

The evidence for the non-surgical approaches sometimes described elsewhere is limited, and whether any has a role in a particular case is a matter for consultation. Where firmness is mild and there is no distortion or pain, monitoring rather than intervention is often the appropriate course.

Can capsular contracture come back after revision surgery?

Yes. Patients who have had it once are at higher risk of it recurring, and revision surgery does not eliminate that possibility. This is discussed as part of planning, including what the arrangements would be if further surgery were needed.

Further Reading

• Breast Augmentation Sydney: pureaesthetics.com.au/procedures/breast/augmentation/