Stapedectomy

What this procedure is

A stapedectomy is a surgery performed to help restore hearing. During this procedure, a surgeon works on the middle ear to address a tiny bone called the stapes (pronounced STAY-peez). This bone is the smallest in the human body and is often called the "stirrup" because of its shape.

In a stapedectomy, the surgeon removes part or all of the stapes bone. They then replace it with a tiny artificial device called a prosthesis. This new part acts like a bridge, allowing sound vibrations to pass into the inner ear so you can hear more clearly.

What it treats or fixes

This procedure is primarily used to treat a condition called otosclerosis. This is a condition where abnormal bone growth occurs in the middle ear. This extra bone causes the stapes to become "stuck" or fixed in place.

When the stapes cannot move freely, it cannot send sound vibrations into the inner ear properly. This leads to a type of hearing loss known as conductive hearing loss. By replacing the stuck bone with a moving artificial part, the surgery aims to restore the natural flow of sound and improve your ability to hear.

How common it is & where it's done

Stapedectomy is a well-established and common procedure for people with otosclerosis. It has been used for many years and is considered a standard treatment for this specific type of hearing loss.

The surgery is typically performed in a hospital or a specialized outpatient surgical center. In many cases, it is an outpatient procedure, meaning most patients are able to go home the same day. Your clinician may perform the surgery through the ear canal using a microscope or a small camera called an endoscope, which often avoids the need for large external cuts or stitches.

Recovery: What to Expect

Most patients are able to go home the same day as their surgery. You may feel some mild dizziness or a sense of imbalance for the first few days. Your ear might feel full or muffled, which is often due to the surgical packing (special bandages) placed inside the ear canal to help it heal.

To protect your ear while it heals, your clinician may suggest the following:

• Avoid blowing your nose or sneezing with your mouth closed.
• Avoid heavy lifting or straining for several weeks.
• Keep your ear dry by using a cotton ball with a little petroleum jelly when showering.
• Wait to travel by airplane until your clinician says it is safe.

Risks & Possible Complications

While this procedure is generally very safe, all surgeries have some risks. Some patients notice a temporary metallic taste or dry mouth. This happens because a small nerve that controls taste runs right through the middle ear and may be moved during the procedure. This usually improves over time.

Other possible risks include temporary dizziness, ringing in the ear (tinnitus), or a small tear in the eardrum. In very rare cases, hearing may not improve or could worsen. You should contact your clinician if you experience any of the following:

• Severe or worsening dizziness or spinning.
• A high fever or severe pain that does not go away with medicine.
• Fluid or drainage from the ear that has a foul smell.

Outcomes & Long-Term Results

The goal of a stapedectomy is to replace a stiff bone with a tiny artificial part called a prosthesis. This allows sound vibrations to reach the inner ear again. Most patients experience a significant improvement in their hearing, though it may take several weeks for the full results to be clear as the swelling goes down and the packing is removed.

The artificial bone is designed to stay in place permanently and typically does not need to be replaced. Most people find that the improvement in their hearing lasts for many years, helping them stay more connected to the world around them.

Emotional Support & Reassurance

It is completely normal to feel nervous about having surgery on something as delicate as your ear. Rest assured that this is a common and well-established procedure. Modern techniques and specialized tools allow clinicians to perform this surgery with great precision.

Focusing on the long-term benefits—such as hearing the voices of loved ones or the sounds of nature more clearly—can help ease your mind. Your care team is there to answer every question and ensure you feel comfortable and informed throughout your journey to better hearing.

Why doctors recommend it

Doctors usually suggest this surgery when a condition called otosclerosis causes hearing loss. In a healthy ear, three tiny bones vibrate to send sound to the inner ear. With otosclerosis, the smallest bone—called the stapes or "stirrup"—gets stuck because of abnormal bone growth. When this bone cannot move, sound waves cannot reach the nerves that help you hear.

Your clinician may recommend a stapedectomy if tests show you have "conductive" hearing loss. This means your inner ear is still healthy, but the sound is being blocked in the middle ear. While hearing aids are a common alternative, surgery is often recommended for patients who want a long-term solution that addresses the physical cause of the blockage.

Urgent vs planned treatment

A stapedectomy is a planned, elective procedure. It is not an emergency. Because the bone growth associated with otosclerosis usually happens very slowly over several years, there is no rush to have the surgery immediately. You and your care team have time to decide if surgery is the right choice for your lifestyle.

Some people may choose to manage their hearing loss with hearing aids or simply monitor their condition with regular hearing tests. Your clinician may suggest scheduling the surgery once the hearing loss begins to interfere with your ability to communicate at work or in social settings. The timing is typically based on when you feel the benefit of better hearing outweighs the risks of the procedure.

Goals of treatment

The primary goal of this procedure is to improve your hearing by restoring the natural movement of sound through the ear. During the surgery, the stuck bone is bypassed or replaced with a tiny artificial part called a prosthesis. This allows the middle ear to vibrate freely again, sending sound signals more effectively to the inner ear.

Success in this treatment usually means:

• Improving your ability to hear faint or quiet sounds.
• Making it easier to understand conversations in different environments.
• Reducing the "air-bone gap," which is the difference between how your inner ear functions and what you can actually hear.
• Potentially reducing or eliminating the need for a hearing aid in the treated ear.

While most patients experience a significant improvement in hearing, your clinician will discuss what level of success is realistic for your specific situation. The goal is to bring your hearing as close to your inner ear's natural potential as possible.

Who may benefit

A stapedectomy is often recommended for people with otosclerosis. This is a condition where the stapes bone—a tiny bone in the middle ear often called the "stirrup"—becomes stuck in place due to abnormal bone growth. When this bone cannot vibrate freely, sound waves cannot reach the inner ear properly. This leads to a type of hearing loss called conductive hearing loss.

Your clinician may suggest this procedure if your hearing tests show a significant "air-bone gap." This means your inner ear and hearing nerve still work well, but the middle ear bones are not passing sound along effectively. People who find that hearing aids are uncomfortable or do not provide enough clarity may also benefit from this surgery to help restore natural sound conduction.

When it may not be the right option

This surgery may not be the best choice for everyone. If you have an active ear infection or a hole in your eardrum, your care team will likely wait until the ear is healthy and healed before considering surgery. It is also generally avoided if you have certain balance disorders, such as Meniere’s disease, as the procedure could potentially make dizziness symptoms worse.

Clinicians are often very cautious if the ear being treated is your "only hearing ear." Because there is a small risk of permanent hearing loss with any ear surgery, many doctors prefer to avoid operating if the other ear does not hear at all. Additionally, if your hearing loss is caused by damage to the nerves (sensorineural hearing loss) rather than the bones, a stapedectomy will not improve your hearing.

Questions to ask your care team

Deciding on ear surgery is a personal choice. It is helpful to talk through your options and expectations with your surgeon to ensure you feel comfortable. You might consider asking these questions at your next appointment:

• How much improvement in my hearing can I realistically expect after the procedure?
• What are the specific risks for me, such as temporary dizziness or changes in how I taste food?
• How long is the recovery period, and when can I safely return to work or travel by plane?
• If I choose not to have surgery right now, how might my hearing change over the next few years?
• Would a different type of hearing aid or a different procedure be a better first step for my specific needs?

In the procedure room

When you arrive, the surgical team will help you lie down on a comfortable table. Your head will be positioned to the side so the surgeon can easily reach your ear. The skin around your ear will be cleaned with a special liquid to prevent infection, and sterile drapes will be placed around the area to keep the site clean.

High-level steps

The surgeon usually performs the procedure through the ear canal using a high-powered microscope. They gently lift the eardrum to see the middle ear bones. The surgeon then identifies the stapes (the tiny, stirrup-shaped bone) that is not moving correctly due to calcium buildup.

A small part of the stapes is removed, and a tiny hole is made in the base of the bone. The surgeon then places a prosthesis (an artificial part) to bridge the gap. This device allows sound vibrations to reach the inner ear again. Once the device is secure, the eardrum is carefully placed back into its original position.

Anesthesia and pain control

Your clinician may use general anesthesia, which puts you into a deep sleep. Alternatively, they may use local anesthesia with sedation. This means you are very relaxed and sleepy, but you may remain awake. To ensure you are comfortable, the surgeon will also use numbing medicine in the ear area to block pain during and immediately after the procedure.

Monitoring and safety steps

While you are in the procedure room, your heart rate, blood pressure, and oxygen levels are monitored constantly by the medical team. The surgeon uses a microscope to see the delicate structures of the ear in great detail. This helps them work safely around the tiny nerves and bones in the area. In some cases, they may use special equipment to monitor the nerves that control facial movement to ensure they are protected.

Immediately after the procedure

After the surgery is finished, you will be taken to a recovery room. You will likely have packing (soft material like gauze or a sponge) inside your ear canal. This packing helps hold the eardrum in place and protects the surgical site while it heals. It also helps prevent the wound from closing too quickly or shifting.

It is common to feel some mild dizziness or a sense of "fullness" in the ear right after the procedure. You may also notice some numbness around the ear or mild soreness, which your care team can help manage with medication. Most patients are able to go home the same day.

Typical procedure length

A stapedectomy typically takes about 45 to 90 minutes to complete. Your total time in the hospital or surgery center will be longer to include the time needed for preparation before the surgery and recovery after the procedure.

Common approaches (open vs minimally invasive)

Surgeons typically perform stapedectomy through the ear canal. This approach allows them to reach the middle ear without making incisions on the outside of your face or neck. Because the surgery is done through a natural opening, visible scarring is generally not a concern.

To see the tiny structures inside the ear clearly, your doctor will use specialized magnification tools. This often involves a surgical microscope, which provides a high-quality, magnified view. In some cases, surgeons may use an endoscope—a thin tube with a camera and light on the end—to see around corners and get a wider view of the middle ear.

During the procedure, your surgeon may use different tools to separate the stapes bone from the surrounding tissue. These can include tiny manual instruments, micro-drills, or lasers. Lasers are sometimes chosen because they can precisely vaporize tissue or bone with minimal vibration, which helps protect the inner ear.

Partial vs total

The goal of the surgery is to restore the movement of sound vibrations, but the amount of bone removed can vary. In a total stapedectomy, the surgeon removes the entire stapes footplate (the base of the stirrup-shaped bone). This was the standard method for many years and is still used when the footplate is loose or difficult to drill.

In a partial stapedectomy, often called a stapedotomy, the surgeon does not remove the entire footplate. Instead, they create a small hole in the center of the footplate using a laser or micro-drill. A piston-like prosthesis (artificial part) is then placed into this small opening. This approach is very common today because it is less invasive and may reduce the chance of certain complications.

Your surgeon will decide which method is safer for you based on the anatomy of your ear and how the disease has affected the bone. For example, if the bone is extremely thick or fixed in place, one technique may be preferred over the other.

Revision or repeat procedures

In some cases, a patient may need a second surgery, known as a revision stapedectomy. This might happen if the original prosthesis shifts out of place, if the bone grows back and closes the opening, or if hearing does not improve as expected after the first operation.

Revision surgery is generally more complex than the first procedure. Because scar tissue may have formed and landmarks in the ear may have changed, the risks can be slightly higher. Your clinician will carefully evaluate your hearing and ear health to determine if a repeat procedure is likely to be successful.

Tests and imaging that may be done

Before scheduling surgery, your care team needs to confirm that your hearing loss is caused by otosclerosis (abnormal bone growth in the ear) and not another condition. You will likely undergo a comprehensive hearing evaluation to help the surgeon plan the procedure.

• Audiogram: This is a standard hearing test. An audiologist measures how well you hear different pitches and volumes. They will check both "air conduction" (sounds traveling through the ear canal) and "bone conduction" (sounds sent directly to the inner ear).
• Tympanometry: This test measures how your eardrum moves in response to air pressure changes. It helps check the health of the middle ear.

In some cases, your clinician may order a CT scan of the temporal bone. This imaging test creates detailed pictures of the ear’s structure. It helps the surgeon look for specific anatomy or rule out other causes of hearing loss, though it is not always required for every patient.

Medication adjustments

It is important to give your surgical team a full list of everything you take, including prescription medicines, over-the-counter drugs, vitamins, and herbal supplements. Some substances can increase the risk of bleeding or interact with anesthesia.

Your clinician may give you specific instructions regarding:

• Blood thinners: If you take anticoagulants (blood thinners) or anti-platelet medications, you might need to pause them for a few days before the procedure.
• Pain relievers: You may be asked to avoid aspirin or ibuprofen-based products for a short time.

Important: Do not stop taking any daily medications unless your doctor or nurse specifically tells you to do so. If you are unsure about a specific medicine, ask your care team for guidance.

Day-before and day-of instructions

Stapedectomy is typically an outpatient procedure, meaning you will likely go home the same day. To ensure the surgery goes smoothly, your team will provide a checklist of instructions.

• Arrange a ride home: You will not be allowed to drive yourself home after surgery due to the anesthesia or sedation. You may also experience some dizziness immediately after the procedure. Plan for a friend or family member to drive you.
• Fasting: You will usually be told not to eat or drink anything (including water) after midnight the night before surgery. This is a safety requirement for anesthesia.
• Health check: If you develop a cold, sore throat, or an active ear infection in the days leading up to surgery, contact your surgeon immediately. The procedure may need to be rescheduled to prevent complications.
• Arrival time: The hospital or surgery center will tell you when to arrive. This is usually a few hours before the scheduled surgery time to allow for preparation.

General surgical risks

Like any operation, stapedectomy carries some standard risks. These are not specific to the ear but can happen with many types of medical procedures. Your surgical team takes many steps to prevent these issues, and serious problems are uncommon.

• Infection: Bacteria could enter the surgical site, though sterile techniques make this unlikely.
• Bleeding: Minor bleeding can occur, but significant blood loss is rare in ear surgery.
• Anesthesia reactions: Some patients may feel nauseous or have a reaction to the medication used to keep them comfortable during the procedure.

Procedure-specific complications

Because this surgery takes place in a very small space inside the ear, there are specific side effects to watch for. Many of these are temporary and improve as the ear heals.

• Dizziness or vertigo: This is one of the most common side effects immediately after surgery. It usually settles down within a few days or weeks.
• Taste changes: A nerve that helps you taste runs very close to the eardrum. If this nerve is irritated, you might notice a metallic taste or dry mouth. This typically resolves on its own over several months.
• Hearing loss: While the goal is to improve hearing, there is a rare risk (less than 1%) that hearing could get worse or be lost permanently in the operated ear.
• Eardrum injury: Rarely, a small hole (perforation) may form in the eardrum.
• Tinnitus: Ringing or buzzing in the ear may persist or, in rare cases, develop after surgery.
• Facial weakness: The facial nerve runs through the ear. Injury to this nerve is extremely rare but can cause temporary or permanent weakness on one side of the face.

How complications are treated

Your clinician will monitor you closely during follow-up appointments to catch and manage any issues early. Treatment depends on the specific problem.

• Observation and time: Many side effects, such as taste changes, dizziness, or small eardrum holes, often heal on their own without extra treatment.
• Medication: Your doctor may prescribe antibiotics for infections, steroids for inflammation, or medication to help reduce dizziness.
• Revision surgery: If the prosthetic bone slips out of place or if the hearing improvement is not satisfactory, a second surgery may be discussed to correct the issue.
• Patching: If a hole in the eardrum does not heal naturally, a minor procedure can be done to patch it.

Pain control medicines

After a stapedectomy, most people feel only mild to moderate discomfort. Your clinician may suggest over-the-counter pain relievers, such as acetaminophen, to keep you comfortable. These are often called analgesics (medicines used to relieve pain).

In some cases, your clinician may provide a short-term prescription for stronger pain medication if needed. It is important to follow their specific instructions and let them know if you have any history of reactions to pain medicines. They will tailor the plan based on your health history and comfort level.

Antibiotics

To help prevent an infection after surgery, your clinician may use antibiotics (medicines that kill or stop the growth of bacteria). These might be given through an IV during the procedure or as a prescription for you to take at home afterward.

You might also be prescribed antibiotic ear drops to use while the ear is healing. Be sure to tell your care team about any known allergies to antibiotics, such as penicillin or sulfa drugs, so they can choose the safest option for you.

Blood thinners and clot prevention

Before your surgery, your clinician will likely review any anticoagulants or antiplatelets you take. These are often called blood thinners because they help prevent blood clots, but they can also increase the risk of bleeding during and after the procedure.

Common examples include aspirin, ibuprofen, or prescription medications for heart health. Your clinician may ask you to stop taking these for a short time before the surgery. However, you should never stop taking a prescribed blood thinner without first talking to your doctor, as they will create a safe plan for your specific needs.

Emergency warning signs

While serious complications are rare, you should seek immediate medical attention or go to the emergency room if you experience symptoms that could indicate a severe infection or nerve issue. These signs include:

• Facial weakness or drooping: If one side of your face feels weak, sags, or if you cannot close one eye, seek help right away. This may be a sign of swelling or injury to the facial nerve.
• Severe pain: Pain that is sudden, intense, and does not get better after taking your prescribed pain medication.
• High fever and stiff neck: A fever over 101°F (38.3°C) combined with a stiff neck or severe headache could indicate a rare but serious infection.

Call your surgeon or clinic if…

Contact your healthcare provider if you notice changes in your recovery that seem unusual or uncomfortable. Your clinician may want to check your ear to ensure it is healing correctly. Call the office if you have:

• New or sudden hearing loss: If your hearing was improving but suddenly gets worse, or if it fluctuates (comes and goes).
• Signs of ear infection: Look for yellow or green fluid draining from the ear, a foul smell, or increased redness and swelling around the ear.
• Persistent dizziness: While some unsteadiness is common, let your doctor know if dizziness prevents you from walking safely or causes frequent vomiting.
• Taste changes that affect eating: A metallic taste is a common side effect, but tell your doctor if it is severe or prevents you from eating properly.

Expected vs concerning symptoms

It can be hard to tell the difference between normal healing and a problem. Here is a guide to help you understand what most people experience versus what requires attention.

• Dizziness and Vertigo:Expected: It is normal to feel unsteady or dizzy for a few days to a few weeks after surgery. This usually improves gradually.Concerning: Severe spinning sensations (vertigo) that last for a long time or get worse instead of better may indicate a fluid leak in the inner ear.
• Hearing Changes:Expected: Your hearing may feel muffled or stuffed up immediately after surgery due to packing material or swelling. You might also hear popping or crackling sounds.Concerning: A sudden drop in hearing after the packing is removed, or hearing that changes when you strain or sneeze, should be checked by your surgeon.
• Taste Disturbance:Expected: You may notice a metallic or altered taste on the side of the tongue where surgery occurred. This happens because a taste nerve runs through the ear.Concerning: Total loss of taste or numbness that lasts for many months may require follow-up, though this often resolves on its own over time.

Non-surgical treatments

If you are not ready for surgery, there are other ways to manage hearing loss caused by otosclerosis (a condition where a tiny bone in the middle ear becomes stuck). The most common alternative is using hearing aids. These devices amplify sound, making it loud enough to pass through the stiffened middle ear bones and reach the inner ear.

Your clinician may also discuss certain medications, such as sodium fluoride. This is a supplement that some doctors believe may help slow down the abnormal bone growth in the ear. While it does not reverse hearing loss, it is sometimes used to prevent the condition from getting worse over time.

Watchful waiting

In some cases, you may choose to simply monitor your hearing over time. This is often called "watchful waiting." If your hearing loss is very mild and does not interfere with your daily activities, your clinician may suggest regular hearing tests to see if the condition is changing.

This approach is safe because otosclerosis usually progresses slowly. It allows you to delay treatment until you feel the hearing loss is affecting your quality of life. During this time, you can continue to discuss your options and preferences with your care team.

When surgery becomes the best option

Surgery may be recommended when non-surgical options are no longer helpful or desirable. Your clinician might suggest a stapedectomy if your hearing tests show a significant "air-bone gap." This term describes a large difference between how well you hear sound through the air compared to how well your inner ear can actually process sound.

You and your clinician might decide surgery is the best path if:

• Hearing aids are uncomfortable, difficult to use, or do not provide enough clarity.
• The hearing loss has reached a point where it makes communication difficult in your daily life.
• You prefer a long-term solution that may reduce or eliminate the need for external devices.

The goal of the procedure is to replace the stuck bone with a tiny artificial part. This restores the natural movement of the ear bones, allowing sound to reach the inner ear more effectively.

Hospital services that commonly perform this surgery

A stapedectomy is typically performed in a hospital's Otolaryngology department. This is the medical specialty that focuses on the ear, nose, and throat (ENT). Many large medical centers have dedicated "Ear Institutes" or "Hearing and Balance Centers" that specialize in treating conditions like otosclerosis, which is an abnormal bone growth in the middle ear that causes hearing loss.

These facilities are equipped with specialized tools, such as high-powered operating microscopes and medical lasers, which help the surgeon work on the tiny bones of the ear. Your clinician may perform the procedure in a main hospital or at an outpatient surgery center, where patients often return home the same day.

Patient resources and support services

Most hospitals provide access to Audiology services. Audiologists are healthcare professionals who specialize in hearing health. They perform the hearing tests needed before surgery and monitor your progress during recovery to see how your hearing improves over time.

Support services often include:

• Patient Education: Detailed guides on how to prepare for surgery and what to expect during the healing process.
• Nursing Hotlines: Access to clinical staff who can answer questions about ear drops, bandages, or activity restrictions after you go home.
• Hearing Support Groups: Connections to local or national organizations for people living with hearing loss or middle ear conditions.

Questions for choosing where to have surgery

Choosing the right facility and surgical team is an important step in your care. Your clinician may suggest a specific center based on their experience and the technology available. You may want to ask the following questions when choosing a facility:

• How many stapedectomy procedures does the surgeon or the department perform each year?
• Does the facility have the specialized equipment, such as a surgical microscope or laser, needed for this delicate procedure?
• What kind of follow-up care and hearing tests are provided at this location after the surgery?
• Is the surgery center or hospital experienced in ear-specific surgeries and recovery?
• What are the typical recovery steps and support options for patients at this facility?

Conditions commonly treated by this procedure

A stapedectomy is most often used to treat a condition called otosclerosis. This is an abnormal growth of bone in the middle ear. This extra bone prevents the stapes (a tiny, stirrup-shaped bone) from vibrating properly. When the bone cannot move, sound waves cannot travel effectively to the inner ear.

This condition leads to what clinicians call conductive hearing loss. This means the physical movement of sound is blocked. Your clinician may recommend this procedure to bypass the stuck bone and help restore the natural path of sound into the ear. In some cases, the condition may affect one ear more than the other, or it may involve both ears over time.

Related symptoms people search for

People who may need this procedure often notice changes in their hearing that develop slowly. These symptoms can be associated with the hardening of the middle ear bones and may include:

• Gradual hearing loss: This often starts with difficulty hearing low-pitched sounds or soft whispers.
• Tinnitus: This is a medical term for ringing, buzzing, or hissing sounds inside the ear.
• Difficulty hearing in quiet rooms: While some people with this condition hear better in noisy places, they may struggle when it is very quiet.
• Balance issues: Though less common, some individuals may experience mild dizziness or a feeling of being off-balance.

Because these symptoms can overlap with other ear concerns, it is important to have a full evaluation. Your clinician may use hearing tests or imaging to see if the stapes bone is the cause of these changes.

Evidence overview

Stapedectomy is a well-established surgical procedure used to treat hearing loss caused by otosclerosis. This condition happens when abnormal bone growth prevents the stapes (stirrup bone) inside the ear from vibrating correctly. Medical research and clinical practice dating back to the 1950s support the effectiveness of this surgery.

Current medical evidence indicates high success rates for this procedure. The main goal is to close the gap between how well a person hears through the air versus through bone conduction. Most patients experience significant hearing improvement and may no longer need a hearing aid for the operated ear. The surgery involves replacing the fixed bone with a tiny artificial part (prosthesis) to restore sound transmission.

Safety notes and individualized care

Although stapedectomy is a common and generally safe procedure, all surgeries involve some risk. Your clinician will discuss these risks with you to help you make an informed decision. Common but usually temporary side effects include dizziness or vertigo immediately after the surgery. Some patients may also notice a change in taste or a metallic taste in the mouth, as a nerve related to taste runs very close to the area being operated on.

Serious complications are rare, occurring in a very small percentage of cases. These potential risks include:

• Further hearing loss or, in rare cases, total loss of hearing in the operated ear
• A hole in the eardrum (perforation)
• Tinnitus (ringing or buzzing in the ear)
• Weakness of the facial muscles

Your surgical team will tailor the procedure to your specific needs. For instance, the surgery can often be performed under local anesthesia with sedation or general anesthesia, depending on your health and the surgeon’s recommendation. Your doctor will also evaluate your ear’s anatomy to decide on the specific technique or type of prosthesis that offers the best chance of success for you.

Sources used

The content in this section is grounded in reputable medical literature and clinical guidelines. The sources include:

• Patient education materials from major academic medical centers
• Peer-reviewed clinical summaries from the National Library of Medicine
• Professional medical reference articles on surgical techniques and outcomes