What Are Peri-Articular Injections?
Peri-articular injections are minimally invasive procedures in which medication is delivered into the soft tissues surrounding a joint rather than inside the joint itself. These tissues may include tendons, bursae, ligaments, or the joint capsule.
In rheumatology, peri-articular injections are commonly used to treat localized inflammation and pain caused by conditions such as bursitis, tendonitis, enthesitis, and soft tissue flare-ups associated with inflammatory arthritis. Corticosteroids are frequently used to reduce inflammation, and in some cases, other therapeutic agents may be administered. Ultrasound guidance is often utilized to improve accuracy and ensure precise placement.
When Are Peri-Articular Injections Recommended?
Your rheumatologist may recommend a peri-articular injection in the following situations:
- Persistent tendon or bursal inflammation
- Shoulder, hip, or knee bursitis
- Tennis elbow or other tendon disorders
- Localized swelling outside the joint space
- Pain related to enthesitis in psoriatic arthritis
- Inadequate relief from oral medications
- Diagnostic clarification of a pain source
These injections help target inflammation in specific soft tissue structures.
What Does Preparation for Peri-Articular Injections Involve?
Preparation is typically straightforward. Patients should inform their physician about allergies, blood thinners, or active infections. No fasting is required in most cases. Wearing loose-fitting clothing that allows easy access to the treatment area is helpful.
The physician will review the procedure, answer questions, and clean the injection site thoroughly to maintain sterile conditions.
How Are Peri-Articular Injections Performed?
The skin over the affected area is cleansed with an antiseptic solution. A small needle is then inserted into the targeted soft tissue structure. Ultrasound guidance may be used to visualize the tendon, bursa, or ligament in real time, ensuring accurate medication delivery.
The procedure typically takes only a few minutes. Most patients experience minimal discomfort, often described as mild pressure or a brief stinging sensation.
What to Expect During Recovery After Peri-Articular Injections?
Patients can usually resume light daily activities shortly after the procedure. Mild soreness at the injection site may occur for 24 to 48 hours. Applying ice and temporarily avoiding strenuous activity can help minimize discomfort.
Pain relief often begins within a few days if corticosteroids are used, though full benefit may take slightly longer.
What Are the Risks and Complications of Peri-Articular Injections?
Peri-articular injections are generally safe, but potential risks include:
- Temporary increase in pain
- Mild swelling or bruising
- Skin thinning or discoloration at the injection site
- Infection (rare)
- Bleeding, particularly in patients on anticoagulants
- Temporary elevation of blood sugar in diabetic patients
Complications are uncommon when the procedure is performed using sterile technique and appropriate imaging guidance.
What Are the Benefits of Peri-Articular Injections?
Peri-articular injections provide several benefits in rheumatology care:
- Targeted treatment of soft tissue inflammation
- Rapid reduction in localized pain
- Improved range of motion
- Minimally invasive alternative to surgery
- Enhanced accuracy with ultrasound guidance
- Ability to combine with physical therapy for optimal recovery
These injections can be an effective component of a comprehensive treatment plan aimed at reducing inflammation and restoring function.