Lateral Epicondylitis Corticosteroid Injection Clinical Note
A corticosteroid injection for lateral epicondylitis should infiltrate triamcinolone acetonide into the area of greatest tenderness at the lateral epicondyle, using strict aseptic technique with doses ranging from 5-15 mg for this region. 1
Sample Clinical Documentation
Patient Information
- Age: 48 years old
- Hand Dominance: Right-hand dominant
- Chief Complaint: Chronic right lateral elbow pain for 6 months, unresponsive to conservative management including rest, activity modification, and physical therapy 2
Pre-Procedure Assessment
- Pain Location: Maximum tenderness at the lateral epicondyle over the common extensor tendon origin 1
- Examination Findings:
- Positive pain with resisted wrist extension
- Tenderness to palpation at lateral epicondyle
- Reduced grip strength compared to contralateral side 3
- Contraindications Reviewed: No active infection, no uncontrolled diabetes, no prior allergic reactions to corticosteroids 1
Procedure Details
Medication Prepared:
- Triamcinolone acetonide 10 mg (0.25 mL of 40 mg/mL suspension) 1, 3
- Lidocaine 1% (1 mL) for local anesthesia 1
- Note: The vial was shaken before use to ensure uniform suspension and inspected for clumping or granular appearance 1
Technique:
- Aseptic Preparation: Strict aseptic technique maintained throughout procedure 1
- Patient Positioning: Patient seated with elbow flexed to 90 degrees, forearm pronated
- Injection Site: Point of maximum tenderness identified by palpation at the lateral epicondyle 1
- Approach: The preparation was infiltrated (peppered technique) into the area of greatest tenderness at the common extensor tendon origin 1
- Needle Size: 25-gauge, 1.5-inch needle used
- Aspiration: Negative for blood prior to injection to avoid intravascular administration 1
- Volume Injected: Total 1.25 mL (triamcinolone 0.25 mL + lidocaine 1 mL)
Critical Technical Points:
- Care taken to infiltrate into the tendon origin area rather than the tendon substance itself 1
- Avoided injecting into surrounding tissues to prevent tissue atrophy 1
- Injection administered without delay after withdrawal to prevent settling in syringe 1
Post-Procedure Instructions
- Activity Modification: Minimize arm use for 3 days, then gradually return to normal activities 4
- Expected Response: Single injection frequently sufficient; several injections may be needed for adequate symptom relief 1
- Follow-up: Scheduled at 6 weeks to assess response 5
- Warning Signs: Instructed to report signs of infection, excessive pain, or skin changes
Dosing Rationale
The 10 mg dose was selected based on FDA labeling for epicondylitis treatment and research demonstrating equivalent efficacy between 5 mg and 10 mg doses. 1, 3 Studies show no statistically significant difference in patient satisfaction, pain scores, or adverse effects between these doses, though both provide short-term pain relief lasting weeks to months 3, 4, 6
Important Caveats
- Ultrasound guidance was not used in this case, as recent evidence shows no clinically significant improvement in outcomes compared to landmark-guided injection for lateral epicondylitis 5
- Short-term benefit expected: Corticosteroid injections typically provide relief for a few weeks to months rather than long-term cure 4, 6
- Potential adverse effects discussed with patient including transient hyperglycemia, skin atrophy at injection site, and theoretical cartilage effects 6
- Alternative considerations: If inadequate response at 3 months, patient may be candidate for platelet-rich plasma injection or surgical consultation 4, 7
Procedure Tolerance
- Patient tolerated procedure well without immediate complications
- No evidence of intravascular injection or allergic reaction
- Immediate post-injection pain minimal
Complications: None
Plan: Follow-up in 6 weeks to assess therapeutic response; consider repeat injection if partial response or alternative therapies if inadequate response 1, 4