Name of the Procedure:

Arthroscopy, knee, surgical; with lateral release
Common Name(s): Knee Arthroscopy with Lateral Release

Summary

Knee arthroscopy with lateral release is a minimally invasive surgical procedure that involves making small incisions in the knee to insert a camera and surgical instruments. This allows the surgeon to release tight structures on the outer side of the knee, improving knee function and reducing pain.

Purpose

The procedure addresses knee conditions often related to patellar (kneecap) misalignment or chronic knee pain caused by tight lateral retinaculum. The goal is to alleviate pain, reduce pressure on the kneecap, and enhance overall knee mechanics and mobility.

Indications

• Chronic knee pain that does not respond to conservative treatments
• Patellar instability or dislocation
• Patellar tilt or malalignment
• Chondromalacia or cartilage damage on the underside of the patella

Preparation

• Fasting for 8-12 hours prior to surgery
• Adjusting any medications as recommended by the surgeon or anesthesiologist
• Pre-surgical assessments including physical exams, blood tests, and imaging studies (e.g., X-rays, MRI)

Procedure Description

1. The patient is given regional or general anesthesia.
2. Small incisions are made around the knee.
3. An arthroscope (small camera) is inserted to provide a clear view inside the knee joint.
4. Specialized surgical instruments are used to release the tight lateral retinaculum around the kneecap.
5. The incisions are closed with sutures or surgical tape.

Duration

The procedure typically takes about 1 to 2 hours.

Setting

Knee arthroscopy with lateral release is usually performed in an outpatient surgical center or hospital.

Personnel

• Orthopedic surgeon
• Anesthesiologist
• Surgical nurses
• Operating room technicians

Risks and Complications

• Infection
• Blood clots
• Knee stiffness or limited range of motion
• Persistent pain or discomfort
• Bleeding or bruising
• Nerve or blood vessel injury
• Adverse reactions to anesthesia
• Need for further surgery if problems persist

Benefits

• Reduction in knee pain
• Improved patellar alignment and tracking
• Enhanced knee function and mobility
• Lower risk of future patellar dislocations

Recovery

• Patients can often go home the same day
• Rest and elevation of the knee
• Application of ice packs to reduce swelling
• Pain management with prescribed medications
• Physical therapy exercises to regain strength and mobility
• Most patients can return to normal activities within 6-8 weeks, though full recovery may take several months

Alternatives

• Physical therapy and exercise programs
• Bracing or orthotic devices
• Injections (corticosteroids or hyaluronic acid)
• More extensive open knee surgery if arthroscopy is not suitable

Patient Experience

During the procedure, the patient will be under anesthesia and should feel no pain. Post-procedure, some discomfort, swelling, and mild pain are common. Pain management will be addressed with medications and ice packs. Most patients experience significant improvement in symptoms within a few weeks to months, with gradual return to daily activities as advised by their healthcare provider.