Knee Arthroscopy Surgery

Knee Arthroscopy

Knee Arthroscopy is a minimally invasive surgical procedure used to diagnose and treat problems in the knee joint through tiny incisions using a camera. This specialized "keyhole" approach allows surgeons to view and repair joint structures without the need for a large open incision.

When You Should Consider Knee Arthroscopy

• Persistent knee pain that has not responded to rest, physical therapy, or injections.

• Mechanical symptoms such as the knee "locking," "catching," or "giving way" during movement.

• Swelling and stiffness caused by loose fragments of bone or cartilage within the joint.

• Confirmed soft tissue injuries, such as a meniscus tear or a ligament injury (ACL/PCL).

• Chronic inflammation of the joint lining (synovium) that requires surgical removal.

Methods of Knee Arthroscopy

• Diagnostic Arthroscopy: A procedure focused on exploring the joint to identify the source of unexplained pain or instability.

• Meniscectomy: Trimming away the damaged or frayed edges of a torn meniscus.

• Meniscal Repair: Suturing a torn meniscus back together to preserve the natural cushioning of the knee.

• Chondroplasty: Smoothing out damaged or irregular articular cartilage to improve joint glide.

• Loose Body Removal: Extracting floating bits of bone or cartilage that cause painful mechanical interference.

How Knee Arthroscopy Is Performed

• Portal Creation: The surgeon makes two or three tiny incisions, or portals (about 0.5 cm each), around the kneecap.

• Saline Insufflation: The joint is expanded with sterile saline to stretch the capsule, providing a clear view and space for the tools.

• Visualization: A high-definition fiber-optic camera (arthroscope) is inserted through one portal to project live images onto a monitor.

• Surgical Intervention: Miniature specialized tools, such as shavers or probes, are used to repair, trim, or remove damaged tissue.

• Closure: After the saline is drained, the tiny portals are closed with a single stitch or sterile tape (Steri-Strips).

Pre-Procedure Preparation

• Fasting (NPO) for 6–8 hours prior to the surgery to ensure safety during anesthesia.

• Evaluation of current medications; blood thinners are typically only stopped if significant bleeding is anticipated.

• Choosing the most appropriate anesthesia option, which may include general, spinal, or a regional nerve block.

• Diagnostic confirmation through physical stability tests and imaging to map out the internal damage.

Tests Before Knee Arthroscopy

• MRI Scan: The primary imaging tool used to visualize soft tissues like ligaments, tendons, and cartilage.

• X-rays: Used to rule out significant bone-on-bone arthritis or fractures that may not be treatable via arthroscopy.

• Physical Stability Exams: Specialized maneuvers (like the Lachman or McMurray tests) to assess ligament and meniscus integrity.

• Blood Panels: Routine screens to ensure general health and fitness for an outpatient surgical procedure.

Life After Knee Arthroscopy

• Almost always an outpatient procedure, with most patients returning home 2–3 hours after waking up.

• Adherence to the R.I.C.E. protocol (Rest, Ice, Compression, Elevation) is critical for the first 48–72 hours.

• Weight-bearing status depends on the procedure: simple trimming allows walking in days, while repairs may require crutches for 4–6 weeks.

• Driving is typically restricted for 1–2 weeks, particularly if the surgery was on the right leg or the patient drives a manual vehicle.

• Physical therapy focuses on restoring range of motion and strengthening the muscles surrounding the knee joint.

Benefits of Knee Arthroscopy

• Minimally invasive nature results in significantly less post-operative pain and swelling than open surgery.

• Tiny incisions lead to faster wound healing and minimal surgical scarring.

• High success rates for resolving mechanical issues like joint locking or catching.

• Reduced risk of infection and lower blood loss compared to traditional joint procedures.