Knee arthroscopy is a keyhole procedure in which the surgeon inserts a pencil-thin camera and instruments into the knee through two (sometimes three) incisions of about 5 mm each. It allows the surgeon to see the entire joint in high definition and treat problems — a torn meniscus, damaged cartilage, loose fragments — without opening the knee. It's a day surgery: most patients walk out of the hospital the same evening.
It's also one of the most commonly performed orthopedic operations worldwide — and one where choosing the right indication matters more than the operation itself. Arthroscopy works extremely well for mechanical problems; it does not treat arthritis pain.
Who actually needs knee arthroscopy
Good indications
Meniscus tears causing locking, catching, or persistent mechanical pain — especially tears that failed 6+ weeks of conservative treatment. Loose bodies (cartilage or bone fragments floating in the joint) causing catching and locking. Cartilage defects suitable for smoothing or repair techniques. Selected ligament injuries and inflamed joint lining (synovitis) that failed medication.
Poor indications
Generalized knee osteoarthritis without mechanical symptoms — multiple high-quality studies show arthroscopic 'cleaning' of an arthritic knee provides no lasting benefit over physiotherapy. If a clinic offers to 'wash out' your arthritic knee, ask hard questions first. Degenerative meniscus fraying without locking usually behaves the same way.
Before surgery
You'll have a clinical exam, an up-to-date MRI, and routine pre-operative labs. Stop eating 6-8 hours before surgery. Most patients arrive in the morning and are home by evening. Arrange someone to drive you home and plan 3-7 days off work depending on your job.
During surgery: what actually happens
Anesthesia is either spinal (numb from the waist down, you stay awake or lightly sedated) or general — both are safe; the choice depends on your health profile and preference. The surgeon makes two small portals at the front of the knee: one for the camera, one for instruments. Sterile fluid inflates the joint for visibility. The surgeon inspects every compartment, then treats what's found — trimming or suturing the meniscus tear, removing loose bodies, smoothing damaged cartilage. The whole procedure typically takes 30-60 minutes. The portals are closed with a stitch or adhesive strips and covered with a light dressing.
Recovery: week by week
Days 1-3
Walking is allowed immediately for most meniscus trims — with crutches for comfort the first day or two. Expect swelling and mild-to-moderate pain controlled by simple analgesics. Ice 15-20 minutes several times daily, keep the leg elevated when sitting, and keep the dressings dry.
Week 1-2
Swelling settles, walking normalizes indoors. Straight-leg raises and gentle range-of-motion exercises start on day 1-2. Desk workers usually return to work within 3-7 days. Stitches (if any) come out around day 10-14.
Week 3-4
Most patients walk normally outdoors, climb stairs comfortably, and start stationary cycling. Physiotherapy focuses on restoring full quadriceps strength — the muscle switches off after any knee surgery and must be actively rebuilt.
Week 5-6
Return to light sport — jogging, swimming — is typical around week 4-6 for a simple meniscus trim. Pivoting sports (football, squash) need 6-8 weeks and confidence in the knee. Note: if your meniscus was repaired (sutured) rather than trimmed, the timeline is much slower — typically 3-4 months before running — because the repair must heal.
Cost in Egypt 2026
Knee arthroscopy at private hospitals in Egypt typically costs EGP 40,000-90,000 in 2026, depending on hospital tier, surgeon seniority, and what's done inside the knee (a simple trim costs less than a meniscus repair with implants). As always: ask whether the quote includes anesthesia, physiotherapy, and follow-up visits.
When to see a specialist
After surgery, contact your surgeon urgently for: fever above 38°C, increasing redness or discharge from the portals, calf pain or swelling (rule out a blood clot), or pain that increases rather than decreases after the first week. Before surgery — if your knee locks, gives way, or has mechanical pain that failed 6 weeks of conservative care, a specialist assessment with MRI will establish whether arthroscopy will genuinely help your specific problem.
Arthroscopy is a superb operation for the right knee and a useless one for the wrong knee. My job in the consultation is telling you honestly which one yours is. When the indication is mechanical — locking, catching, a repairable tear — patient satisfaction is among the highest in orthopedics. — Dr. Mohamed Kamal, Bone Art Clinic
Frequently Asked Questions
How much does knee arthroscopy cost in Egypt in 2026?
Typically EGP 40,000-90,000 at private hospitals in 2026, depending on hospital tier, surgeon seniority, and what's treated inside the knee. A simple meniscus trim sits at the lower end; meniscus repair with implants costs more. Confirm what the quote includes.
Is knee arthroscopy painful?
Post-operative pain is mild to moderate and controlled with simple analgesics for most patients. The incisions are about 5 mm each. Most discomfort comes from joint swelling in the first week — ice, elevation, and early gentle movement manage it well.
How soon can I walk after knee arthroscopy?
The same day for most meniscus trims — with crutches for comfort during the first day or two. Walking normalizes indoors within a week. If the meniscus was repaired (sutured), your surgeon may restrict weight-bearing for several weeks to protect the repair.
When can I return to work and sport?
Desk work: 3-7 days. Physical jobs: 2-4 weeks. Light sport (jogging, swimming): around week 4-6 for a simple trim. Pivoting sports like football: 6-8 weeks. Meniscus repair timelines are longer — typically 3-4 months before running.
Does arthroscopy help knee osteoarthritis?
Generally no. High-quality studies show arthroscopic 'clean-up' of an arthritic knee without mechanical symptoms provides no lasting benefit over physiotherapy. Arthroscopy helps arthritic knees only in selected cases with true mechanical symptoms like locking from a displaced tear or loose body.