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A joint cyst is a benign formation filled with synovial fluid or gelatinous material, located in or near a joint. Cysts can occur in any joint — knee, wrist, hip, shoulder, and spinal facet joints. Despite being benign, cysts can cause pain, limited motion, and nerve compression. Treatment in Germany includes minimally invasive methods, arthroscopy, and innovative MIBRAR® therapy that eliminates the cyst-forming cause.
A joint cyst is a fluid-filled cavity with a membrane. Cysts form when excess pressure develops inside the joint (from synovitis or arthrosis) or when synovial fluid leaks through weakened capsule areas — similar to a hernia mechanism. Cysts are not tumors and do not undergo malignant transformation, but they can enlarge, compress surrounding nerves and vessels, limit joint mobility, cause chronic pain, and recur after aspiration if the cause is not eliminated.
| Type | Location | Cause | Complications |
|---|---|---|---|
| Baker's cyst | Popliteal fossa | Arthrosis, meniscus tear | Rupture, DVT mimicry |
| Ganglion | Wrist, foot | Capsule/ligament degeneration | Nerve compression |
| Meniscal cyst | Knee (joint line) | Horizontal meniscus tear | Pain, limited motion |
| Facet joint cyst | Spine (facet joints) | Facet arthrosis | Canal stenosis, root compression |
| Paralabral cyst | Shoulder, hip | Labrum tear | Suprascapular nerve compression |
Arthrosis is the primary cause of Baker's and facet joint cysts. Meniscal injuries with horizontal tears create a valve mechanism. Labrum tears produce paralabral cysts in shoulder and hip. Synovitis increases intra-articular pressure. Microtrauma from monotonous loading causes wrist ganglions. Facet joint arthrosis leads to capsule degeneration.
A visible or palpable mass — elastic, rounded, mobile (ganglion) or deep (Baker's cyst). Pain ranges from mild discomfort to significant loading pain. Limited motion from mechanical obstruction. Numbness/weakness when nerves are compressed (wrist ganglion → carpal tunnel syndrome). Back/leg pain from facet joint cyst with root compression.
Ultrasound is a quick and informative method for cyst visualization, size measurement, joint communication, and internal structure assessment. MRI is the gold standard for deep cysts (Baker's, facet, paralabral), evaluating cause — meniscus, labrum, arthrosis injuries. Radiography excludes bone pathology and assesses arthrosis. CT evaluates facet joint cysts and spinal canal stenosis.
Asymptomatic cysts (ganglions) may resolve spontaneously in up to 50% of cases. Ultrasound-guided aspiration evacuates contents, often combined with corticosteroid injection — recurrence rate is 30–50% since the intra-articular cause persists. Immobilization with a wrist orthosis for ganglions reduces capsule irritation. Treating the underlying cause (arthrosis, synovitis) reduces fluid production.
Joint cysts (Zysten) are included in the indications for MIBRAR® technology. The method addresses the cyst-forming cause rather than simply draining it. Cyst aspiration under Sono Control Arm™ guidance (0.1 mm precision) ensures complete content removal. ARC transplantation into the cyst cavity stimulates wall healing through anti-inflammatory factors and mesenchymal stem cells, preventing recurrence. Simultaneous cause treatment addresses the underlying condition — for Baker's cysts: knee cartilage regeneration; for meniscal cysts: meniscal tissue restoration; for facet cysts: joint cartilage regeneration. No cortisone is used — ARC strengthens rather than weakens tissues. The procedure is outpatient, without anesthesia, using exclusively autologous material.
Arthroscopic removal addresses Baker's cysts by eliminating the valve mechanism (internal opening) plus treating the cause (meniscus, cartilage). For meniscal cysts, meniscus repair/resection plus cyst decompression is performed. Open excision with complete ganglion removal including the stalk gives 5–10% recurrence rate. Microsurgical facet joint cyst removal provides nerve root decompression plus cyst removal, potentially combined with stabilization for instability.
| Service | Price, € | Note |
|---|---|---|
| Diagnostics (ultrasound + MRI) | 2,000–4,000 | 1 day |
| MIBRAR® therapy | on request | outpatient |
| Arthroscopic removal (knee) | 5,000–9,000 | 1–2 days inpatient |
| Ganglion excision | 3,000–5,000 | outpatient |
All treatment prices in Germany.
Germany offers precise cause diagnosis (MRI + ultrasound), MIBRAR® therapy for cause treatment and recurrence prevention, Sono Control Arm™ aspiration with 0.1 mm precision, arthroscopic cause elimination (meniscus, cartilage, labrum), a multidisciplinary approach at world-class clinics, and multilingual assistance. A recurring cyst signals intra-articular problems — contact us to find and eliminate the cause.
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