Bursitis – General
OtherOverview
Bursitis is inflammation of a bursa, a small fluid-filled sac that reduces friction between bones, tendons, and muscles around joints. It commonly affects the shoulder, elbow, hip, and knee, presenting with localized swelling, tenderness, and restricted movement. The condition is typically self-limiting but can become chronic if underlying biomechanical factors are not addressed.
Pathophysiology
Bursae are synovial structures that normally contain minimal fluid to facilitate smooth tissue gliding. Acute bursitis develops through repetitive microtrauma, direct trauma, or prolonged pressure, causing the bursa lining to become inflamed and produce excess synovial fluid. This inflammatory response leads to swelling, local tissue irritation, and pain with movement. Chronic bursitis may involve fibrosis of the bursa wall and can be complicated by calcification or infection (septic bursitis). Underlying biomechanical dysfunction, muscle imbalances, and postural faults perpetuate the condition.
Patient Education
Bursitis responds well to relative rest, anti-inflammatory measures, and correcting the movement patterns or postural habits that caused it—addressing the root cause prevents recurrence.
Typical Presentation
Site
Localized to bursa location: subacromial (shoulder), olecranon (elbow), greater trochanter (hip), infrapatellar or prepatellar (knee), or lesser trochanter
Quality
Aching, tender, throbbing; may feel warm and swollen; sharp pain with specific movements
Intensity
Mild to moderate; often 4–7/10; typically increases with activity and improves with rest
Aggravating
Repetitive movement in the affected plane, direct pressure on the bursa, prolonged static postures, activities mimicking the causative motion
Relieving
Rest, ice application, NSAIDs, gentle passive movement, elevation, avoiding aggravating activities
Associated
Visible swelling, warmth, erythema (if superficial), restricted active range of motion, muscle weakness or inhibition, postural imbalance, tenderness on palpation
Orthopaedic Tests
Palpation of bursa
Procedure
Identify the anatomical location of the affected bursa and apply gentle, progressively increasing pressure directly over the bursal site. Assess for tenderness, swelling, warmth, and fluctuance.
Positive Finding
Localized tenderness, palpable swelling, warmth, or fluctuance over the bursal location
Sensitivity / Specificity
Unknown / Unknown
Interpretation
High sensitivity for detecting inflamed or distended bursae; forms the cornerstone of clinical assessment but lacks specificity as bursitis must be differentiated from adjacent soft tissue pathology (tendinopathy, ligament strain). Warmth and fluctuance suggest acute inflammatory phase.
Active range of motion (AROM) with symptom reproduction
Procedure
Guide the patient through active movements of the affected joint in multiple planes (flexion, extension, abduction, adduction, internal/external rotation as appropriate). Observe for pain reproduction and movement limitation.
Positive Finding
Pain during specific movements that compress, stretch, or load the affected bursa; restricted ROM in the direction that aggravates symptoms
Sensitivity / Specificity
Unknown / Unknown
Interpretation
Movement-related pain helps localize the bursa involvement and identify which actions (e.g., abduction in subacromial bursitis) trigger symptoms. Guides therapeutic exercise prescription. Non-specific but clinically useful in conjunction with palpation findings.
Passive range of motion (PROM) assessment
Procedure
Passively move the affected joint through its normal range in cardinal planes. Determine if pain is reproduced and note the quality of end-feel (soft, firm, hard, or empty).
Positive Finding
Pain on passive movement, particularly in directions that load or stretch the bursa; empty end-feel may suggest acute inflammation limiting end-range tolerance
Sensitivity / Specificity
Unknown / Unknown
Interpretation
PROM greater than AROM in the absence of pain suggests motor inhibition or guarding. Presence of pain on PROM in multiple planes suggests significant inflammation. Helps rule out intra-articular pathology (which typically limits PROM more severely).
Resisted isometric muscle testing
Procedure
Apply manual resistance against the muscle groups that directly load or compress the affected bursa while the patient maintains a stable joint position. Assess strength and pain response.
Positive Finding
Pain with resisted contraction of muscles that compress the bursa (weakness may or may not be present); reproduction of bursal tenderness
Sensitivity / Specificity
Unknown / Unknown
Interpretation
Positive finding supports bursal involvement over isolated tendinopathy. For example, pain on resisted hip abduction in trochanteric bursitis. Helps differentiate from pure muscle strain, which typically shows weakness and pain together.
Functional loading tests (position-specific provocation)
Procedure
Guide the patient through positions or movements that load the affected bursa (e.g., prolonged standing on one leg for ischial bursitis; repetitive shoulder abduction for subacromial bursitis; kneeling pressure on patellar bursa). Observe for symptom reproduction.
Positive Finding
Localized pain or increased swelling with sustained or repeated loading of the bursal site; symptom relief upon unloading
Sensitivity / Specificity
Unknown / Unknown
Interpretation
High clinical relevance as it reproduces the mechanism of symptom provocation in daily life. Guides activity modification and rehabilitation focus. Positive findings correlate with functional impairment.
Ultrasound imaging (where available)
Procedure
Use real-time B-mode ultrasonography to visualize the affected bursa. Assess for fluid distension, echogenicity, vascularity on Doppler, and measure bursal thickness.
Positive Finding
Bursal distension (>2–3 mm fluid collection, depending on anatomical location), hypoechoic or anechoic fluid, increased vascularity on power Doppler, bursal wall thickening
Sensitivity / Specificity
72–85% for detecting bursal effusion depending on anatomical site / 70–90% for confirming bursal pathology
Finnoff et al., 2008, AJSM; Jacobson, 2007, Radiology
Interpretation
Confirms presence and degree of bursal inflammation; visualizes adjacent soft tissue structures to rule out other causes (tendon tear, muscle strain). Operator-dependent but increasingly available in primary care. Helps guide aspiration or injection when needed.
⚠ Red Flags
- •Fever, systemic malaise, or signs of systemic infection (septic bursitis)
- •Sudden severe swelling with inability to move the joint
- •History of injections or penetrating trauma suggesting infection risk
- •Signs of vascular compromise or neurological involvement
- •Bursitis persisting beyond 3–4 weeks despite conservative management
- •Progressive neurological deficits or loss of motor control
⚡ Yellow Flags
- •Belief that bursitis is permanent or career-ending
- •Fear-avoidance behavior preventing necessary rehabilitation
- •Multiple joint involvement suggesting systemic or inflammatory condition (rheumatoid arthritis, gout)
- •Poor compliance with activity modification or exercise prescription
- •Psychosocial stress exacerbating pain perception and recovery
- •Secondary gain (work avoidance, compensation seeking)
Osteopathic Techniques
Region
Affected joint and surrounding musculature
Technique
Soft Tissue
Rationale
Gentle soft tissue mobilization reduces muscular tension and improves local circulation, promoting resorption of inflammatory fluid and reducing pain
Region
Bursa region and local structures
Technique
Articulation
Rationale
Gentle oscillatory articulation maintains joint mobility, prevents stiffness, and stimulates synovial fluid circulation without aggravating acute inflammation
Region
Proximal and distal joints in kinetic chain
Technique
MET
Rationale
Muscle energy technique addresses muscle imbalances and postural dysfunction that contribute to abnormal load distribution on the bursa
Region
Affected limb and regional lymphatic structures
Technique
Lymphatic
Rationale
Lymphatic drainage techniques enhance clearance of inflammatory exudate and improve fluid resorption, reducing swelling and pain
Region
Spine (relevant segments) and pelvic structures
Technique
Articulation
Rationale
Treating regional biomechanical dysfunction (e.g., thoracic or lumbar mobility in shoulder bursitis) restores optimal kinetic chain function and reduces compensatory stress on the bursa
Region
Cervical spine and cranial base (for upper limb bursitis)
Technique
Cranial
Rationale
Cranial techniques may improve autonomic balance and pain modulation, supporting parasympathetic tone and tissue healing
Add-On Approaches
Chinese Medicine
TCM views bursitis as Qi and blood stagnation due to trauma or prolonged immobility; acupuncture at local and distant points (e.g., LI-10 for elbow bursitis) and moxibustion may reduce inflammation and pain
Chiropractic
Joint mobilization and manipulation of proximal and distal segments in the kinetic chain to restore optimal biomechanics and reduce abnormal stress on the bursa
Physiotherapy
Graduated strengthening and proprioceptive training of rotator cuff (shoulder), hip abductors (hip), quadriceps and VMO (knee), or forearm stabilizers (elbow) to restore motor control and prevent recurrence
Remedial Massage
Targeted massage to reduce muscle tension, improve circulation, and release trigger points in muscles adjacent to the bursa (e.g., supraspinatus, infraspinatus for shoulder bursitis)
Rehabilitation Exercises
Pendulum circles (shoulder bursitis)
Cross-body shoulder stretch (pectoralis and anterior shoulder)
Hip flexor and piriformis stretch (hip bursitis)
Quadriceps and knee flexor stretch (knee bursitis)
Rotator cuff isometric holds (shoulder bursitis)
Hip abduction resistance band work (hip bursitis)
Quadriceps sets and VMO activation (knee bursitis)
Forearm pronation and supination with light weight (elbow bursitis)
Scapular stabilization and posture awareness (shoulder bursitis)
Single-leg stance (hip and knee bursitis)
Low-impact aerobic activity (walking, swimming, cycling with proper mechanics)
Active-assisted range of motion progression (joint-specific, graded by tolerance)
Referral Criteria
- •Suspected septic bursitis (fever, severe swelling, systemic signs) – refer to general practitioner or emergency department for aspiration and culture
- •Bursitis persisting beyond 4–6 weeks despite conservative management – consider imaging (ultrasound or MRI) and refer to sports medicine physician or orthopedic specialist
- •Recurrent or chronic bursitis affecting function – refer to physiotherapist for comprehensive biomechanical assessment and rehabilitation
- •Signs of infection (increasing warmth, erythema, fluctuance) – urgent referral to general practitioner or hospital
- •Bursitis associated with systemic inflammatory condition (rheumatoid arthritis, gout) – refer to rheumatologist
- •Neurological signs or vascular compromise – urgent referral to appropriate specialist
- •Failure to improve or worsening despite treatment – consider underlying pathology (rotator cuff tear, labral pathology, femoroacetabular impingement) and refer for imaging and specialist review