What Is Knee Arthroscopy?
Knee arthroscopy is a minimally invasive surgical procedure in which a small camera (arthroscope) is inserted into the knee joint through a tiny incision (portal). The camera transmits images to a monitor, allowing the surgeon to visualise and treat problems inside the joint using small instruments through additional portals.
Conditions Treated
Knee arthroscopy can be used to treat:
- Meniscal tears — repair or partial removal
- Loose bodies — removal of cartilage or bone fragments
- Articular cartilage defects — microfracture, chondroplasty
- ACL and other ligament reconstruction
- Synovial biopsy or synovectomy
- Plica removal
The Procedure
Knee arthroscopy is performed under general or spinal anaesthetic as a day procedure. Two or three small incisions (portals) are made around the knee. The arthroscope is inserted through one portal and surgical instruments through the others. The procedure usually takes 30–60 minutes depending on the complexity of treatment required.
Recovery
Recovery depends on what was done during the procedure. For a diagnostic arthroscopy or removal of loose bodies, patients can weight-bear the same day and return to desk work within a few days. After meniscal repair, weight-bearing may be restricted for 4–6 weeks and return to sport takes 3–4 months.
Is Arthroscopy Appropriate for Arthritis?
The evidence for knee arthroscopy in degenerative arthritis (without mechanical symptoms) is limited. Arthroscopic washout of an arthritic knee is generally not recommended as a primary treatment for arthritis. We will discuss whether your symptoms are likely to benefit from arthroscopy during your consultation.