Reduces friction during elbow flexion and extension
Normal bursa — thin synovial lining, minimal fluid
Mechanisms of bursitis
Microtrauma mechanism
Repetitive pressure causes synovial irritation and fluid accumulation
Chronic inflammation leads to synovial hypertrophy
Bursal wall thickening and septation over time
Septic mechanism
Skin break allows bacterial entry — portal of entry in 50% of cases
Hematogenous seeding less common
S. aureus dominant pathogen — virulence factors enable rapid spread
Crystal deposition mechanism
Monosodium urate or CPPD crystals deposit in bursal tissue
Crystal-induced inflammation activates complement and cytokines
Clinically indistinguishable from septic bursitis without aspiration
Hemorrhagic mechanism
Direct trauma causes bursal bleeding
Anticoagulant use increases risk
Blood within bursa may predispose to secondary infection
Therapeutic Considerations
Antibiotic strategy principles
Pathogen spectrum
S. aureus dominant in 73% — empiric coverage mandatory
MRSA prevalence varies by community — local antibiogram guides selection
Streptococcal species in 19% — beta-lactam coverage adequate
Duration rationale
Minimum 14 days — shorter courses associated with higher recurrence
Data from Perez et al 2010 — short-course adjuvant antibiotics not risk factor for recurrence when drainage also performed
Aspiration versus empiric antibiotics debate
Aspiration provides diagnostic information and therapeutic drainage
Empiric antibiotics without aspiration — 88% uncomplicated resolution in ED cohort
Risk of draining sinus tract with repeated aspiration of nonseptic bursitis
Corticosteroid injection evidence
Kim et al 2016 RCT — aspiration with steroid versus compression plus NSAIDs
Steroid injection hastened resolution but no long-term advantage
Increased recurrence and iatrogenic infection risk with steroid
Reserved for confirmed aseptic refractory bursitis only
Surgical management evidence
Bursectomy effective for refractory cases
26% of hospitalized septic bursitis patients required surgical intervention
Open versus endoscopic bursectomy — comparable outcomes
Recurrence rate with surgical management <5%
Patient Discharge Instructions
copy discharge instructions
Olecranon bursitis home care
Rest your elbow and avoid leaning on it
Apply ice wrapped in cloth for 15 to 20 minutes several times a day
Wear an elbow compression wrap as instructed
Keep your elbow elevated when resting to reduce swelling
Use elbow pads to protect the area when returning to activity
Medication instructions
Take anti-inflammatory medication (ibuprofen or naproxen) with food as prescribed
If antibiotics were prescribed, take the full course — do not stop early even if feeling better
Antibiotic course is at least 14 days for infection
Do not take NSAIDs if you have kidney problems, stomach ulcers, or were told to avoid them
Follow-up instructions
Return for reassessment in 48 to 72 hours if antibiotics were prescribed
Return in 1 to 2 weeks if treated for non-infected bursitis
Occupational therapy or work modification referral may be arranged
Warning signs — return to emergency department immediately for
Worsening redness, swelling, or pain despite treatment
New or worsening fever or chills
Red streaking spreading up the arm from the elbow
Pus or discharge from the elbow
No improvement after 48 to 72 hours of antibiotics
Inability to tolerate oral medications
Feeling very unwell, confused, or having a rapid heart rate
Prevention and long-term advice
Use elbow pads during work and recreational activities that require elbow contact with hard surfaces
Address underlying gout with your primary care provider if applicable
Condition may recur — early recognition and return important
Nonseptic bursitis typically resolves in 2 to 4 weeks with proper care
References
Guidelines and key sources
Key references
Baumbach SF et al — Prepatellar and Olecranon Bursitis: Literature Review and Development of a Treatment Algorithm — Archives of Orthopaedic and Trauma Surgery 2014
PubMed PMID 24305696
Diagnostic criteria for septic bursitis including temperature differential
Reilly D and Kamineni S — Olecranon Bursitis — Journal of Shoulder and Elbow Surgery 2016
PubMed PMID 26577126
Ultrasound role and aspiration guidance
Nchinda NN and Wolf JM — Clinical Management of Olecranon Bursitis: A Review — Journal of Hand Surgery 2021
PubMed PMID 33840568
Immunocompromised risk and recurrence data
Khodaee M — Common Superficial Bursitis — American Family Physician 2017
PubMed PMID 28290630
Corticosteroid injection evidence and RCT outcomes
Darrieutort-Laffite C et al — 2023 French Recommendations for Diagnosing and Managing Prepatellar and Olecranon Septic Bursitis — Joint Bone Spine 2024
PubMed PMID 37995861
Aspiration recommendations and antibiotic duration guidance
Beyde A et al — Efficacy of Empiric Antibiotic Management of Septic Olecranon Bursitis Without Bursal Aspiration in ED Patients — Academic Emergency Medicine 2022
PubMed PMID 34698411
88% resolution with empiric antibiotics without aspiration
Kim JY et al — A Randomized Trial Among Compression Plus NSAIDs, Aspiration, and Aspiration With Steroid Injection for Nonseptic Olecranon Bursitis — Clinical Orthopaedics and Related Research 2016
PubMed PMID 26463567
83% resolution with compression plus NSAIDs by 4 weeks
Perez C et al — Infectious Olecranon and Patellar Bursitis: Short-Course Adjuvant Antibiotic Therapy — Journal of Antimicrobial Chemotherapy 2010
PubMed PMID 20197288
Short antibiotic course not risk factor for recurrence with surgical drainage
Coding standards
ICD-10 codes
M70.20 — olecranon bursitis, unspecified elbow
M70.21 — olecranon bursitis, right elbow
M70.22 — olecranon bursitis, left elbow
M71.021 — septic bursitis, right elbow
M71.022 — septic bursitis, left elbow
SNOMED CT — olecranon bursitis disorder concept
SymptomDx is an educational tool for medical professionals. It does not replace clinical judgment. Verify all clinical data and drug dosages with authoritative sources.