Knee arthroscopy is a minimally invasive procedure used to look inside the knee joint with a small camera. It is commonly used in orthopedics and sports medicine to diagnose and treat certain knee problems. Small incisions allow specialized instruments to work inside the joint without a large open cut. It is often discussed when knee pain, swelling, locking, or instability persists despite initial care.

Knee lavage is a process of washing out the knee joint with sterile fluid. It is used to remove or dilute material inside the joint, such as blood, debris, or inflammatory fluid. Knee lavage can be done with a needle in a clinic setting or during arthroscopy in an operating room. It is most commonly discussed in the context of swollen, painful knees and certain joint diseases.

Joint aspiration is a procedure where a clinician removes fluid from a joint using a sterile needle and syringe. It is most commonly performed in large joints such as the knee, but it can be used in other joints as well. It may be done to help diagnose the cause of swelling or pain, and sometimes to reduce pressure in the joint. In clinical settings, it may also be paired with laboratory testing of the fluid and/or an injection.

Arthrocentesis knee is a procedure where a clinician inserts a needle into the knee joint to remove joint fluid. It is also called knee joint aspiration. It is commonly used in orthopedics, sports medicine, emergency care, and rheumatology. It can be done for diagnosis, symptom relief, or both.

Aspiration knee effusion is the removal of excess fluid from the knee joint using a needle and syringe. It is also called **knee aspiration** or **arthrocentesis**. It is commonly used in orthopedics, sports medicine, emergency care, and rheumatology. It can be done to help diagnose the cause of swelling or to reduce pressure and discomfort.

A Fluoroscopy-guided knee injection is a knee injection performed while using real-time X-ray imaging to guide the needle. It is most often used to place medication accurately into the knee joint space or a targeted region around the knee. Clinicians commonly use it in orthopedic, sports medicine, radiology, and pain-management settings. It can be used for both diagnosis (finding a pain source) and treatment (reducing symptoms).

Ultrasound-guided knee injection is a knee injection performed while the clinician watches a live ultrasound image. It is used to place a needle into a specific knee space or tissue with visual confirmation. It is commonly performed in orthopedics, sports medicine, rheumatology, and pain-focused musculoskeletal care. It may be used for diagnosis (to localize pain) or treatment (to deliver medication or biologic material).

RFA genicular nerves is a pain procedure that targets small sensory nerves around the knee. It uses radiofrequency energy to reduce pain signals traveling from the knee to the brain. It is most commonly discussed for chronic knee pain, especially when arthritis is involved. It is typically performed in interventional pain, sports medicine, or orthopedic care pathways.

Genicular nerve radiofrequency ablation is a minimally invasive pain procedure for the knee. It uses controlled radiofrequency energy to reduce pain signals carried by small nerves around the joint. It is most commonly discussed for knee osteoarthritis pain and persistent knee pain when surgery is not preferred or is being delayed. It is performed by clinicians trained in image-guided pain procedures, often in outpatient settings.

Genicular nerve block is an injection-based pain procedure that targets small nerves that carry pain signals from the knee joint. It is commonly used to help clarify where knee pain is coming from and to reduce pain for a period of time. It is often discussed in the setting of knee osteoarthritis, chronic knee pain, or pain after knee surgery.