Partial Meniscectomy: Procedure, Recovery & Risks
A partial meniscectomy is a surgical procedure in which a damaged portion of the meniscus in the knee joint is removed arthroscopically.
Things worth knowing about "Partial meniscectomy"
A partial meniscectomy is a surgical procedure in which a damaged portion of the meniscus in the knee joint is removed arthroscopically.
What is a Partial Meniscectomy?
A partial meniscectomy is a surgical procedure performed on the knee joint in which a torn or damaged section of the meniscus is removed. The meniscus is a crescent-shaped fibrocartilaginous disc that acts as a shock absorber and stabilizer within the knee. Each knee has two menisci: the medial meniscus (inner side) and the lateral meniscus (outer side). When part of the meniscus is torn or degenerated, it can cause pain, swelling, and limited range of motion. The goal of a partial meniscectomy is to remove only the damaged tissue while preserving as much healthy meniscal tissue as possible.
When is a Partial Meniscectomy Performed?
This procedure is indicated when conservative treatments such as physiotherapy, pain medication, or injections have not provided sufficient relief, and when the meniscal tear cannot be repaired with suturing. Common indications include:
- Degenerative meniscal tears: often seen in older patients due to age-related wear and tear
- Traumatic meniscal tears: caused by sudden twisting movements or sports injuries
- Complex tears: where a meniscal repair (suture) is not feasible
- Persistent knee pain and locking of the knee joint despite conservative management
Surgical Procedure
A partial meniscectomy is typically performed arthroscopically (keyhole surgery). Through two to three small incisions, a camera (arthroscope) and surgical instruments are introduced into the knee joint. Using a monitor for visual guidance, the surgeon removes the damaged meniscal tissue and smooths the remaining meniscal edges.
Step-by-Step Overview
- Pre-operative assessment including MRI and X-ray imaging
- Performed under general or spinal anesthesia
- Arthroscopic insertion of camera and instruments
- Resection of the damaged meniscal portion
- Smoothing of the remaining meniscal rim
- Wound closure and sterile dressing
Aftercare and Rehabilitation
Following the procedure, most patients are able to bear weight on the operated leg the same day or the following day. A short inpatient stay of one day may be required. Physiotherapy is a key component of recovery and includes muscle strengthening, coordination training, and gradual increase in activity levels.
- Partial or full weight-bearing typically allowed immediately or within a few days
- Return to light daily activities after approximately 1–2 weeks
- Return to sports after approximately 4–8 weeks, depending on findings and individual recovery
- Physiotherapy recommended for several weeks post-surgery
Risks and Possible Complications
As with any surgical procedure, a partial meniscectomy carries potential risks:
- Infection of the knee joint (rare)
- Deep vein thrombosis or pulmonary embolism (minimized with prophylactic anticoagulation)
- Nerve irritation causing temporary numbness
- Post-operative bleeding or joint effusion
- Increased long-term risk of knee osteoarthritis due to reduced meniscal cushioning
Long-Term Outcomes and Prognosis
In the short term, many patients experience significant pain relief and improved knee function. However, in the long term, a reduced meniscal volume increases cartilage stress within the knee, which may elevate the risk of developing gonarthrosis (knee osteoarthritis). For this reason, meniscus-preserving approaches such as meniscal repair are preferred whenever clinically feasible in modern orthopaedic practice.
References
- Deutsche Gesellschaft für Orthopädie und Unfallchirurgie (DGOU): Clinical Guideline on Meniscal Disorders, 2017.
- Herrlin, S. V. et al. - Is arthroscopic surgery beneficial in treating non-traumatic, degenerative medial meniscal tears? A five year follow-up. Knee Surgery, Sports Traumatology, Arthroscopy, 2013.
- Katz, J. N. et al. - Surgery versus Physical Therapy for a Meniscal Tear and Osteoarthritis. New England Journal of Medicine, 2013.
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