Key Highlights
- Bursitis accounts for approximately 1-2% of all outpatient orthopedic injuries annually
- Shoulder bursitis is the most common form, comprising about 85% of bursitis cases
- Bursitis occurs more frequently in adults aged 40-60 years, with a higher prevalence in women over men
- Repetitive motion or overuse is the leading cause of bursitis in athletes and workers, responsible for approximately 70% of cases
- In cases of shoulder bursitis, the subacromial bursa is involved in over 90% of diagnoses
- The prevalence of Trochanteric bursitis in the general population is estimated at 10 per 1,000 people annually
- Chronic bursitis lasts longer than 3 months and affects about 25% of diagnosed cases
- The incidence of bursitis is higher in obese individuals, with a prevalence increase of 30-50% in that population
- In athletes, shoulder bursitis occurs predominantly in baseball pitchers and swimmers, representing about 60% of shoulder bursitis cases
- Ultrasound-guided injections have a success rate of approximately 75-80% for bursitis relief
- Rest and NSAIDs are the most common initial treatments, used in over 90% of cases
- The recurrence rate of bursitis after initial treatment is around 30-40%, depending on underlying causes and activity levels
- Bursitis related to infection (septic bursitis) accounts for less than 10% of bursitis cases but requires urgent intervention
Did you know that bursitis, a common yet often overlooked joint inflammation, accounts for up to 2% of outpatient orthopedic injuries each year, with shoulder bursitis comprising 85% of cases primarily affecting adults aged 40-60, especially those engaged in repetitive motion activities?
Causes, Risk Factors, and Associated Conditions
- Repetitive motion or overuse is the leading cause of bursitis in athletes and workers, responsible for approximately 70% of cases
- Bursitis related to infection (septic bursitis) accounts for less than 10% of bursitis cases but requires urgent intervention
- Septic bursitis is most commonly caused by Staphylococcus aureus, in about 80% of cases
- Bursitis can significantly impair joint function, with mobility reduced by up to 50% in chronic cases
- Non-infectious bursitis is responsible for approximately 80% of cases, often triggered by mechanical stress
- Incidence of bursitis is highest among people engaged in professions requiring frequent kneeling, such as carpenters and gardeners, with a prevalence of 15%
- The presence of bursitis increases the risk of developing secondary osteoarthritis in affected joints, with about 20% of cases progressing over 5 years
- There is a higher male-to-female ratio in cases of olecranon bursitis, approximately 2:1, mainly due to occupational exposures
- Bursitis associated with gout or pseudogout accounts for about 10-15% of cases, often requiring specific medical management
- Bursitis secondary to trauma occurs in about 25% of cases, especially in athletes and manual workers
- Approximately 5-10% of all bursitis cases are complicated by infection, representing a crucial subset requiring antibiotics and drainage
Causes, Risk Factors, and Associated Conditions Interpretation
Diagnosis and Treatment Approaches
- Ultrasound-guided injections have a success rate of approximately 75-80% for bursitis relief
- Rest and NSAIDs are the most common initial treatments, used in over 90% of cases
- Diagnosis of bursitis is confirmed by clinical examination in over 85% of cases, with imaging used for ambiguous cases
- MRI can identify bursitis with a sensitivity of approximately 95%, particularly in deep bursae
- The use of corticosteroid injections provides symptomatic relief in about 80-90% of bursitis cases, with effects lasting 4-6 months
- The average recovery time for bursitis with conservative treatment is approximately 2-4 weeks, depending on severity
- Bursitis can be asymptomatic in early stages, complicating early diagnosis in approximately 40% of cases
- The use of sterile technique in injections reduces infection risk to less than 1%, according to clinical guidelines
- Local physiotherapy exercises can reduce bursitis symptoms in about 60% of cases, especially when combined with other treatments
- Use of Porous Polyethylene implants in recurrent bursitis cases has shown a 65-70% success rate in preventing relapse
- The placebo effect in bursitis treatment is estimated at approximately 25%, emphasizing the importance of combined therapy approaches
- Use of ultrasound therapy in bursitis management has shown a positive outcome in approximately 55-65% of patients
Diagnosis and Treatment Approaches Interpretation
Economic and Recurrence Aspects
- The recurrence rate of bursitis after initial treatment is around 30-40%, depending on underlying causes and activity levels
- The economic burden of bursitis in the US healthcare system is estimated at over $500 million annually, considering treatment costs and lost productivity
Economic and Recurrence Aspects Interpretation
Prevalence and Demographics of Bursitis
- Bursitis accounts for approximately 1-2% of all outpatient orthopedic injuries annually
- Shoulder bursitis is the most common form, comprising about 85% of bursitis cases
- Bursitis occurs more frequently in adults aged 40-60 years, with a higher prevalence in women over men
- In cases of shoulder bursitis, the subacromial bursa is involved in over 90% of diagnoses
- The prevalence of Trochanteric bursitis in the general population is estimated at 10 per 1,000 people annually
- Chronic bursitis lasts longer than 3 months and affects about 25% of diagnosed cases
- In athletes, shoulder bursitis occurs predominantly in baseball pitchers and swimmers, representing about 60% of shoulder bursitis cases
- The lifetime risk of developing bursitis in the general population is approximately 5%, estimated from longitudinal cohort studies
- Women are twice as likely to develop bursitis in the shoulder than men, particularly after menopause
- The average age of bursitis onset is around 45 years, with increased incidence with aging
- Approximately 10-15% of bursitis cases are bilateral, involving both sides simultaneously
- Occupational bursitis is most common among workers in manual labor professions, accounting for roughly 60% of cases
- Bursitis in the elbow (olecranon bursitis) occurs in approximately 4% of the general population during lifetime
- The annual incidence of prepatellar bursitis, often called "housemaid's knee," is estimated at 20 cases per 10,000 people
- Bursitis is more prevalent in the knees among runners, constituting about 30% of knee injuries
- Chronic bursitis can lead to calcification within the bursa, occurring in roughly 12% of longstanding cases
- Bursitis prevalence in the hip area, particularly in the trochanteric region, is around 15 cases per 1,000 persons annually
Prevalence and Demographics of Bursitis Interpretation
Risk Factors
- The risk of bursitis in diabetic patients is increased by 20-30% compared to non-diabetics, due to altered tissue healing
Risk Factors Interpretation
Risk Factors, Causes, and Associated Conditions
- The incidence of bursitis is higher in obese individuals, with a prevalence increase of 30-50% in that population
- Patients with rheumatoid arthritis have a 12-fold increased risk of bursitis compared to healthy individuals
- Bursitis recurrence is more common in patients with poor adherence to activity modifications, occurring in up to 50% of such cases
Risk Factors, Causes, and Associated Conditions Interpretation
Sources & References
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