A penile implant is the preferred surgical option when Peyronie’s disease is combined with erectile dysfunction that does not respond adequately to medical treatment. The implant’s main job is to restore reliable rigidity. Placing cylinders inside the penis also straightens many deformities to some degree. If a functionally important curve remains, the surgeon can add modelling, plication or plaque incision/grafting during the same operation. The procedure can therefore address both ED and curvature, but it is not a guaranteed penile-lengthening operation and it does not remove all plaque.

Who should consider an implant for Peyronie’s disease?

• Erections are not firm enough for penetration despite properly used oral ED medicines.
• Other ED treatments such as injections are ineffective, unsuitable or not acceptable to the patient.
• There is severe penile fibrosis with unreliable rigidity.
• A previous curvature procedure has failed and significant ED is now present.
• The patient wants a definitive mechanical erection solution and understands implant risks and limitations.

How does the implant straighten the penis?

The cylinders act as internal splints inside the corpora cavernosa. Expansion can stretch the shorter scarred side and reduce curvature. Current EAU guidance notes that a small residual curve—often less than about 30 degrees after cylinder placement—may not need an additional straightening manoeuvre because the implant can continue to act as an internal tissue expander over time.

What if significant curvature remains?

Inflatable or malleable implant?

Both can restore rigidity. Three-piece inflatable devices are often favoured when anatomy, dexterity and cost allow because they give a softer resting state and permit repeated expansion/cycling. Malleable implants are simpler to operate and can be useful in selected patients. Device choice is individual rather than determined by Peyronie’s disease alone.

What happens to penile length?

Peyronie’s disease may already have caused shortening before surgery. A prosthesis fills the available corporal space and can improve functional straightness, but it cannot guarantee restoration of the penis to its length before the disease began. Severe fibrosis can limit expansion. Complex length-restoration procedures exist but add risk and are not routine for every implant case.

Risks specific to a Peyronie’s implant case

• Residual or recurrent curvature.
• Perceived shortening or dissatisfaction with length.
• Infection, erosion or mechanical failure of the prosthesis.
• Corporal or urethral injury during difficult fibrotic implantation.
• Need for plication or grafting in addition to the implant.
• Altered sensation, pain or glans softness.
• Future revision if the device eventually fails.

Recovery and device cycling

Recovery resembles other penile implant surgery but can be more uncomfortable when extensive straightening, grafting or fibrosis work is added. Swelling and bruising are expected early. Device cycling begins only after surgical clearance. Sexual activity is usually delayed until wounds and internal tissues have healed adequately, commonly around 4–6 weeks or longer in complex cases.

Why an implant can straighten Peyronie’s curvature without a separate graft

Inflated cylinders act as internal tissue expanders and can correct mild-to-moderate curvature simply by restoring symmetric rigidity. Current EAU guidance notes that residual curvature below about 30 degrees after implant placement often needs no additional manoeuvre. If a larger deformity remains, modelling is usually considered first, followed by plication or incision/grafting in selected cases. This stepwise approach avoids adding a more invasive straightening procedure when the cylinders alone have already produced a functional result.

What modelling actually means

After the cylinders are fully inflated, the surgeon may manually bend the penis opposite the residual curve for a controlled period to stretch or disrupt the plaque. This is performed under anaesthesia with the prosthesis protecting the corpora. It is not the same as a patient forcefully bending the penis after surgery. If significant curvature remains after modelling, plication or incision with/without grafting may be added depending on the deformity and the size of any tunical defect.

Why experienced counselling matters in severe fibrosis

Long-standing Peyronie’s disease, previous priapism, prior implant surgery or infection can leave dense corporal fibrosis. Implantation may then require specialised dilators, narrower cylinders, alternative incisions or staged strategies, and the risk of urethral injury or device malposition is higher than in a straightforward primary implant. Patients with complex fibrosis should be counselled that operative difficulty and length expectations are different from routine ED implant surgery.

Length expectations need to be discussed before the implant is opened

Peyronie’s disease and long-standing ED can shorten the penis before surgery through fibrosis and loss of regular full erections. A prosthesis is sized to the corporal space that can be safely prepared at surgery; it is not a lengthening device. Aggressive length-restoration techniques exist for selected end-stage cases but add complexity and can carry serious complications. For most men, the safer goal is dependable rigidity, functional straightness and preservation of the length that can reasonably be achieved.

What happens to the glans

The prosthesis cylinders support the corporal bodies but do not directly inflate the glans. Some men therefore notice that the glans is softer than the shaft even when the device is fully rigid. In many patients this does not prevent intercourse. If glans support, sensation or distal pain is a concern before surgery, it should be discussed explicitly because an implant should not be presented as a device that mechanically hardens every part of the penis.

Before an implant for Peyronie’s disease

• Bring erection photographs and any previous measurements of curvature or stretched length.
• Document how ED responds to tablets or injections; refractory ED is central to the implant decision.
• Discuss whether residual curvature might need modelling, plication or grafting after the cylinders are placed.
• Review previous penile surgery, injections, priapism or fibrosis that may make implantation more complex.
• Discuss expectations about length explicitly—the implant restores rigidity but is not designed to recreate remembered pre-Peyronie’s size.

FAQs

Related reading

• Peyronie’s Disease with Erectile Dysfunction: Treatment Options
• Peyronie’s Disease Surgery: What Are the Options?
• Penile Implant: Malleable vs Inflatable Implant
• Recovery After Peyronie’s Disease Surgery
• Urologist in Latur

References

• European Association of Urology. EAU Guidelines on Sexual and Reproductive Health: Penile Curvature. 2026 https://uroweb.org/guidelines/sexual-and-reproductive-health/chapter/penile-curvature
• Nehra A, Alterowitz R, Culkin DJ, et al. Peyronie’s Disease: AUA Guideline. J Urol. 2015;194(3):745-753. doi:10.1016/j.juro.2015.05.098.
• Chierigo F, Fallara G, Tozzi M, et al. Guideline of guidelines: Peyronie’s disease. BJU Int. 2026;137(5):770-782. doi:10.1111/bju.70201.
• Tozzi M, Gobbo A, Fallara G, et al. Erectile dysfunction in patients with Peyronie’s disease treated with different grafts: a systematic review. Sex Med Rev. 2026;14(1):qeaf053. doi:10.1093/sxmrev/qeaf053.