What Is Arthroscopic Knee Surgery Used to Treat?

Arthroscopic knee surgery treats cartilage tears, torn ligaments, inflamed tissue, and loose bone or cartilage pieces inside the knee joint. Doctors also use knee arthroscopy to treat kneecap problems, remove damaged tissue, and drain Baker’s cysts (fluid-filled sacs behind the knee).

At Total Orthopedics and Sports Medicine, our surgeon, Dr. Charles Ruotolo, uses advanced imaging to identify damage within the knee joint. Once the imaging confirms the problem, the surgeon performs a minimally invasive procedure through small incisions to repair damaged tissue. He also provides second opinions and helps you choose the right treatment for your knee pain. Call 855-321-6784 to book your consultation today in Deer Park.

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When Is Arthroscopic Knee Surgery Recommended?

Our board-certified orthopedic surgeon, Dr. Charles Ruotolo, may recommend knee arthroscopy if pain or mechanical issues (like locking or giving way) do not improve with conservative treatment. He may also recommend this procedure if imaging shows structural damage within the knee joint. In such cases, arthroscopic knee surgery can repair the damage and improve joint movement.

In addition, our surgeon, Dr. Charles Ruotolo, may recommend arthroscopic knee surgery for the following conditions:

Torn Meniscus

A torn meniscus damages the cartilage that cushions the knee joint and absorbs shock during movement. During arthroscopic surgery, surgeons use regional anesthesia to numb the lower body. Then, they make two or three small incisions around the knee. They also inject fluid into the joint space for a clear view of the knee structure with the small camera. After that, the surgeon inserts small surgical tools and performs the following procedures based on the location and severity of the tear:

• Meniscus Repair: In this procedure, the surgeon stitches the torn cartilage when the tear is in the outer “red zone” with healthy blood flow.
• Meniscectomy: We remove the damaged cartilage when the tear is in the inner “white zone” with poor blood supply.

Ligament Tears

Ligament tears may lead to pain and instability during movement or athletic activities. These injuries commonly affect the ACL (Anterior Cruciate Ligament) or PCL (Posterior Cruciate Ligament). In such cases, the surgeon may reconstruct the torn ligament and strengthen support inside the knee joint. This approach helps restore stability and supports safer movement.

Early-Stage Arthritis

According to the National Library of Medicine, symptomatic knee osteoarthritis affects nearly 240 people per 100,000 each year. This condition can cause swelling, stiffness, and pain inside the knee. You may also notice locking or catching during movement due to damaged tissue or loose debris within the joint. In these cases, our surgeon, Dr. Charles Ruotolo, may remove loose debris to relieve pain and improve joint movement.

Loose Bodies

Loose bodies are small bone or articular cartilage fragments that float inside the knee joint. These fragments may cause a catching, locking, or give-way sensation during movement. Without proper treatment, these loose fragments can lead to severe complications such as:

• Sudden Joint Locking: A loose fragment may get stuck between the bones and block normal knee movement.
• Chronic Inflammation: Continuous irritation inside the joint may cause swelling, weakness, and fluid buildup (effusion).
• Permanent Tissue Damage: Over time, the loose bodies may damage nearby cartilage, ligaments, and other joint structures.

Patellar (Kneecap) Malalignment

Improper kneecap alignment inside the joint may lead to pain, friction, and repeated instability. This pain often worsens during activities such as climbing stairs, bending the knee, or walking. In such cases, arthroscopic knee stabilization helps reduce stress on the bone and improves joint function. In fact, an NIH retrospective review examined outcomes of arthroscopic patellar stabilization at 5-year follow-up. The study reported improved knee function scores and a low redislocation rate of only 7.8% after surgery.

Knee Sepsis (Joint Infection)

Knee sepsis is a serious joint infection that can damage tissue inside the knee. This condition often causes swelling, severe pain, redness, and fever. During arthroscopy, surgeons flush out the infected fluid and clean the joint space. This treatment helps control the infection, reduce joint pressure, and protect nearby tissue from further damage.

Baker’s Cyst Removal

Research published in the Springer Journal reported significant improvement after arthroscopic Baker’s cyst removal. The study found that only 12.4% of cases showed cyst recurrence on ultrasound. Researchers also reported major improvement in knee function and patient satisfaction scores after surgery. Beyond this, the study reported no persistent complications after the procedure.

Who Is a Good Candidate for Arthroscopic Knee Surgery?

Doctors usually recommend arthroscopic knee surgery for active adults aged 20 to 60 who experience ongoing knee joint problems during sports or daily activities. They may also advise this procedure if you have localized soft-tissue injuries, such as a torn ACL, torn meniscus, or inflamed joint lining, that affect joint stability and movement.

Before knee arthroscopic surgery, the doctor reviews your medical history and examines imaging scans to confirm the most suitable treatment approach. However, they may not recommend knee arthroscopy if you have the following risk factors and conditions:

• Advanced Osteoarthritis: Severe injuries or joint damage may limit the benefits of arthroscopic knee surgery.
• Neuromuscular Conditions: Muscle or nerve disorders may affect joint movement and recovery after surgery.
• Active Infection: An infection inside or around the knee can increase the risk of serious complications.
• Blood-Clotting Disorders: Bleeding disorders or blood thinners may raise the risk of excess bleeding during surgery.
• Severe Obesity: Excess weight may place added pressure on the knee joint and slow recovery.
• Poor General Health: Severe heart, lung, or other medical conditions may affect healing.

Can Arthroscopy Treat Knee Inflammation or Swelling?

Yes, knee arthroscopy can help treat chronic inflammation caused by structural problems inside the joint. These problems may result from inflamed tissue, loose cartilage fragments, or meniscal injuries that contribute to pain. During the procedure, the surgeon uses high-resolution cameras and specialized surgical instruments to examine the joint. Then they remove inflamed tissue, loose cartilage fragments, or damaged tissue that triggers fluid buildup inside the joint. This treatment can reduce pain and improve knee mobility while placing less stress on nearby tissues.

Here are some other common causes of knee inflammation and swelling:

• Bursitis and Tendinitis: Repetitive kneeling, running, or overuse can irritate the bursae (fluid-filled sacs) or tendons around the knee.
• Psoriatic and Rheumatoid Arthritis: These autoimmune conditions cause the immune system to attack healthy joint tissue.
• Gout and Pseudogout: Crystal buildup inside the joint can trigger sudden pain, swelling, and stiffness.
• Baker’s Cyst: This fluid-filled swelling usually forms behind the joint due to an underlying knee problem.
• Fractures and Dislocations: Broken bones or a dislocated kneecap may cause severe swelling and sudden knee injuries.

Does Knee Arthroscopy Help with Cartilage Loss?

Yes, a knee arthroscopy procedure, such as chondroplasty, helps smooth rough cartilage surfaces and remove loose fragments inside the joint. This procedure may also ease discomfort, catching sensations, and improve joint movement with less irritation. However, it does not regrow missing cartilage or fully treat widespread osteoarthritis inside the knee. In such cases, the surgeon may recommend knee replacement vs arthroscopy, based on the extent of joint damage and your long-term mobility needs.

What Are the Risks of Delaying Arthroscopic Knee Surgery?

Delaying arthroscopic knee surgery can lead to worsening cartilage damage, joint instability, and long-term muscle weakness around the knee. It may also increase the risk of chronic pain, reduced mobility, and increased strain on the hips, spine, and the opposite leg due to uneven movement. Over time, untreated knee injuries can lead to severe complications such as permanent joint damage and loss of normal knee function.

In addition, knee cartilage damage can worsen over time and lead to the following complications:

Tissue Contractures

Ligaments and tendons around the joint may gradually lose flexibility due to knee pain. This condition, often called tissue contracture, can lead to severe stiffness and restricted joint movement. You may also struggle to fully bend or straighten the leg during walking or daily activities. In severe cases, this stiffness may affect balance, mobility, and overall joint function.

Increased Surgical Complexity

As joint damage worsens, minimally invasive treatments may fail to provide long-term relief. In these cases, the surgeon may recommend more extensive procedures, such as open knee surgery or a total knee replacement, to restore movement. These procedures often require longer recovery periods and more complex rehabilitation. In addition, weakened muscles before surgery may slow healing, reduce joint stability, and increase the risk of incomplete recovery.

In fact, an NIH study compared early and delayed arthroscopic meniscus surgery in 260 patients. After a follow-up period, the research reported the following outcomes in healing rates, pain level, and knee function:

• Complete Healing Rate: Early surgery showed a healing rate of 66.22%, compared with 43.75% after delayed surgery.
• Pain Scores: Patients who received early treatment reported lower VAS pain scores at both 3 and 6 months after surgery.
• Better Knee Function: Early surgery led to improved knee movement and functional recovery during follow-up.

Systemic Complications

Ongoing knee pain and reduced movement can affect your overall health. For example, reduced physical activity over time may weaken your muscles and lower cardiovascular fitness. This change may increase the risk of high blood pressure, weight gain, and poor diabetes control. Chronic pain may also affect sleep, energy levels, and emotional well-being over time. To prevent these health complications, knee doctors recommend early pain management and proper treatment to restore mobility and support long-term joint health.

Is Knee Arthroscopy Better Than Open Surgery?

Yes, knee arthroscopy is often preferred because it causes less damage to surrounding tissues and supports a faster recovery. This outpatient procedure also requires smaller incisions, which may help reduce post-operative pain. In contrast, open procedures usually require larger incisions (3 to 10 inches) and greater disruption of the muscles and soft tissues around the joint.

After open knee surgery, most patients report significant pain, swelling, stiffness, and longer recovery periods. You may also experience delayed movement and reduced joint flexibility during rehabilitation. Beyond these complications, you may face the following operative challenges after an open knee procedure:

• Surgical Site Infections: Larger incisions may increase the risk of wound infections and bacterial contamination.
• Increased Blood Loss: More extensive tissue dissection during surgery may result in greater blood loss.
• Respiratory and Intestinal Issues: General anesthesia and surgical stress may slow bowel function and increase the risk of breathing complications.
• Extended Hospital Stays: Many patients require longer hospital recovery due to post-operative discomfort.

How Long Does Knee Scope Surgery Take?

According to our experience, knee scope surgery usually takes 30 to 60 minutes. However, surgical time may increase depending on the type of damage and the complexity of the repair inside the joint. For example, simple examinations or tissue debridement may take around 30 to 45 minutes. In contrast, complex repairs such as ligament reconstruction can take up to 2 hours.

In addition, the following factors may also extend the overall surgical time during the procedure:

• Multiple Knee Injuries: Treating multiple injuries during a single procedure may increase operating room time.
• Inflamed Synovial Tissue Removal: Inflamed synovial tissue may take extra time to remove safely.
• Anesthesia Preparation: Preparing and monitoring anesthesia before surgery may prolong the procedure.
• Patient Health Factors: Conditions such as obesity, diabetes, or previous surgeries may make the procedure more complex.

What Is the Success Rate of Arthroscopic Knee Surgery?

Arthroscopic knee surgery helps reduce pain and improve joint function in nearly 70% to 90% of cases. In fact, a NIH meta-analysis of 10 studies involving 1,004 patients reported an overall success rate of 83% after arthroscopic meniscus repair. The same analysis found a 20% failure rate after surgery. Beyond this, researchers reported a reoperation rate of 21% among patients during follow-up.

Similarly, another NIH study followed 119 patients for nearly 12 years after arthroscopic partial meniscectomy. Researchers found that 91.7% of patients reported excellent or good results 4 years after surgery. Even after 12 years, 78.1% of patients still reported full recovery or excellent outcomes.

The study also showed that many patients returned to normal work activities and sports after recovery from surgery. However, the outcome may vary depending on the type of injury, overall joint condition, and the severity of cartilage damage inside the knee. Severe osteoarthritis may also lead to poor recovery after surgery.

When Can You Return to Work After Knee Surgery?

You can usually return to work within 3 to 5 days after arthroscopic knee surgery. The exact recovery timeline often depends on your job demands and overall health. For example, if your work involves heavy lifting, prolonged standing, or physical labor, you may need 4 to 8 weeks before returning to work safely. However, if you return too early and ignore recovery instructions, it may lead to pain, swelling, delayed healing, or re-injury inside the joint. To prevent these complications, our surgeon, Dr. Charles Ruotolo, provides the following detailed recovery guidance to ensure a safe return to daily activities:

Post-Operative Incision Care

Keep your incision clean and dry for the first 48 to 72 hours after surgery. Once your surgeon confirms that the incision area has healed, you may shower. During the shower, let warm water gently run over the knee without scrubbing the skin. Afterward, carefully pat the area dry and apply fresh, clean bandages if needed. You should also avoid soaking the knee in bathtubs, pools, or hot tubs for at least 2 to 3 weeks. This precaution helps protect the incision from infection and delayed healing.

Knee Swelling Management

Mild swelling is common during the first few weeks after knee arthroscopy. To reduce swelling, use the RICE method (rest, ice, compression, and elevation) throughout the day. Apply ice for 15 to 20 minutes at a time while keeping a towel between the ice and your skin. You should also elevate your leg above heart level whenever possible. These steps may help alleviate pain, reduce discomfort, and improve circulation around the joint.

Mobility Support

Our surgeon, Dr. Charles Ruotolo, may recommend crutches or a knee brace during the first stage of recovery. These supports help reduce pressure on the joint while walking or standing. They also lower the risk of falls or accidental twisting movements during healing.

Recovery Exercises

Daily walking may help improve blood flow and reduce stiffness after surgery. However, you should keep walking distances short during the first few days to avoid overloading the joint. We may also recommend the following low-impact exercises to strengthen the muscles and restore joint mobility:

• Heel Slides: Help improve knee flexibility and range of motion.
• Quad Sets: Strengthen the thigh muscles that support the knee joint.
• Straight Leg Raises: Improve leg strength while placing less pressure on the knee.

Movement Restrictions

During early recovery, avoid running, jumping, twisting, and other high-impact activities. These movements may place excessive pressure on the healing joint and worsen irritation. You should also avoid sitting or standing for long periods without elevating the knee. Moreover, to support a smooth recovery, you can follow the Post-operative knee arthroscopy instructions guide created by our surgeons. This guide includes detailed instructions about icing schedules, safe use of pain medication, dressing care, showering, and therapy timelines after surgery.

What Results Can You Expect After Knee Arthroscopy?

After knee arthroscopy, you may notice significant pain relief. Over time, healing can help decrease joint swelling and improve symptoms such as catching or locking in the knee. However, during the first week of recovery, you may need crutches to reduce pressure on the knee while walking. After 2 to 3 weeks, many people resume desk jobs, driving, and light daily activities. As strength and joint movement improve, you may gradually return to physical activities such as:

• Walking and light jogging
• Cycling
• Swimming
• Weightlifting
• Stretching exercises
• Low-impact sports

Visit Total Orthopedics & Sports Medicine for Arthroscopic Knee Surgery in Deer Park!

You may struggle to walk, exercise, or enjoy daily activities due to knee pain and stiffness. Although surgery can help relieve these symptoms, you may still need ongoing care to restore normal knee function and stability. Many patients also face sleep disturbances, loss of independence, and emotional stress.

As a member of the Arthroscopy Association of North America (AANA), our surgeon, Dr. Charles Ruotolo, at Total Orthopedics and Sports Medicine, performs advanced arthroscopic knee procedures. He also guides you through the recovery process, discusses activity limits, and monitors healing to prevent complications. Moreover, our healthcare team designs activity-specific mobility plans to help restore movement and support a smooth recovery. Call 855-321-6784 or visit the Deer Park clinic for advanced treatment.

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