Iliopsoas Bursitis

Lower Limb

Overview

Iliopsoas bursitis is inflammation of the bursa located between the iliopsoas muscle and the hip joint capsule, typically resulting from repetitive hip flexion activities or direct trauma. It presents with anterior hip and groin pain, particularly with hip flexion and internal rotation movements. This condition is common in athletes and individuals with hip pathology or muscle imbalances.

Pathophysiology

The iliopsoas bursa is a large synovial sac that reduces friction between the iliopsoas muscle tendon and the underlying hip joint capsule and femoral head. Repetitive hip flexion, prolonged sitting, muscle tightness, or direct compression irritates the bursa lining, triggering an inflammatory cascade with synovial fluid accumulation. Contributing factors include hip flexor tightness, weakness of hip stabilizers, postural dysfunction, and underlying hip joint pathology such as femoroacetabular impingement or labral tears.

Patient Education

Reducing repetitive hip flexion activities and regular stretching of the hip flexors are essential to prevent recurrence; maintaining hip stability through core and glute strengthening protects the joint and reduces bursal stress.

Typical Presentation

Site

Anterior hip and groin region, may refer to medial thigh and lower abdomen

Quality

Dull ache, sharp anterior hip pain with specific movements, clicking or catching sensation

Intensity

Mild to moderate (3-7/10), often worse with activity and morning stiffness

Aggravating

Hip flexion activities (stair climbing, hill walking, sit-ups), sitting for prolonged periods, lying on affected side, internal rotation of hip, resisted hip flexion

Relieving

Rest, hip flexor stretching, ice application, anti-inflammatory medications, avoiding provocative activities, supine positioning

Associated

Hip flexor tightness, gluteal weakness, reduced hip internal rotation, antalgic gait pattern, possible hip clicking or catching, core instability

Orthopaedic Tests

Thomas Test

Procedure

Patient supine on examination table with both knees drawn to chest; examiner observes for lumbar lordosis and hip flexion contracture on the tested side. The contralateral hip is held flexed while the ipsilateral leg hangs off the table edge.

Positive Finding

Hip flexion contracture or inability to fully extend the hip; positive iliopsoas involvement if hip remains flexed when knee is extended

Sensitivity / Specificity

Unknown / Unknown

Interpretation

Suggests hip flexor tightness or contracture; may contribute to iliopsoas bursitis by increasing mechanical stress on the bursa and tendon

Modified Thomas Test

Procedure

Patient supine; examiner flexes contralateral hip and knee fully to flatten lumbar lordosis, then palpates and observes the ipsilateral hip for flexion contracture or iliopsoas tightness as the leg hangs over table edge

Positive Finding

Hip flexion contracture of >10–15 degrees; increased tension or pain in the iliopsoas region

Sensitivity / Specificity

Unknown / Unknown

Interpretation

More sensitive variant for detecting iliopsoas and hip flexor contractures; positive result implicates iliopsoas in functional limitation and may predispose to bursal inflammation

FABER Test (Flexion, Abduction, External Rotation)

Procedure

Patient supine; examiner places hip in flexion (~45°), abduction, and external rotation, bringing the foot toward the contralateral knee. Gentle overpressure is applied at the knee toward the table

Positive Finding

Pain in the ipsilateral groin, anterior hip, or bursal region; restriction of motion in the plane of FABER

Sensitivity / Specificity

72% / 62%

Reiman et al., 2013, Journal of Orthopaedic & Sports Physical Therapy

Interpretation

Positive FABER with groin pain may indicate anterior hip joint pathology or iliopsoas-related inflammation; sensitivity is moderate and does not definitively rule in bursitis alone

Rectus Femoris Stretch (Prone Hip Extension)

Procedure

Patient prone or side-lying; examiner flexes the knee and passively extends the hip. Alternatively, Thomas test position with knee extended can assess rectus femoris tension indirectly

Positive Finding

Anterior thigh or hip pain; tightness limiting hip extension; discomfort in the anterior hip or bursal region

Sensitivity / Specificity

Unknown / Unknown

Interpretation

Tightness of rectus femoris increases anterior hip stress and may contribute to iliopsoas bursitis; positive finding indicates need for flexibility intervention

Iliopsoas Palpation and Resisted Hip Flexion

Procedure

Patient supine with hip flexed ~45°. Examiner palpates the iliopsoas in the femoral triangle (just medial to the femoral nerve) and resists hip flexion while observing for tenderness or muscle guarding

Positive Finding

Acute tenderness over the iliopsoas tendon or bursa in the groin; pain or weakness on resisted hip flexion

Sensitivity / Specificity

Unknown / Unknown

Interpretation

Direct palpation and functional testing of the iliopsoas; positive finding strongly suggests iliopsoas involvement and is consistent with bursitis or tendinopathy

Anterior Hip Impingement Sign (Log Roll Test)

Procedure

Patient supine, hip flexed ~30–45°. Examiner applies internal rotation of the hip (log-rolling motion) and assesses for reproduction of groin pain

Positive Finding

Sharp anterior hip or groin pain; clicking or catching sensation

Sensitivity / Specificity

61% / 72%

Hegedus et al., 2012, British Journal of Sports Medicine

Interpretation

May reproduce pain in iliopsoas bursitis due to bursal compression or tendon irritation; positive result suggests anterior hip pathology requiring further imaging (ultrasound, MRI)

⚠ Red Flags

  • •Severe trauma with inability to bear weight or hip dislocation
  • •Acute onset with systemic fever suggesting septic bursitis
  • •Signs of infection including erythema, warmth, and lymphadenopathy
  • •Progressive neurological deficit suggesting nerve compression
  • •Hip pain with constitutional symptoms suggesting malignancy or systemic disease
  • •Inability to passively abduct the hip suggesting severe capsular involvement

⚡ Yellow Flags

  • •High fear-avoidance beliefs regarding hip movement
  • •Persistent pain disproportionate to clinical findings
  • •Multiple joint involvement suggesting polyarticular disease
  • •Poor exercise tolerance and deconditioning
  • •Prolonged work absence or vocational uncertainty
  • •Passive coping strategies and low self-efficacy for recovery

Osteopathic Techniques

Region

Iliopsoas muscle and hip flexors

Technique

Soft Tissue

Rationale

Deep soft tissue mobilization reduces muscle tension and improves blood flow to the inflamed bursa, reducing pain and facilitating healing while addressing underlying hip flexor tightness that contributes to bursal compression

Region

Hip joint and acetabular-femoral relationship

Technique

Articulation

Rationale

Gentle hip joint articulation in flexion-extension and rotation restores normal movement patterns, reduces compensatory stress on the bursa, and improves synovial fluid nutrition to the joint

Region

Hip and lumbar spine

Technique

MET

Rationale

Muscle energy techniques to the iliopsoas and hip flexors address muscle imbalance, improve hip extension mobility, and reduce tension pulling on the bursa during movement

Region

Lumbar spine and fascial restrictions

Technique

Functional

Rationale

Functional techniques address postural dysfunction and fascial restrictions in the lower abdominal wall and anterior hip that contribute to abnormal hip mechanics and bursal irritation

Region

Gluteal muscles and hip external rotators

Technique

Soft Tissue

Rationale

Soft tissue mobilization improves tone and activation of gluteal and hip stabilizer muscles, enhancing dynamic hip stability and reducing compensatory stress on the iliopsoas and bursa

Region

Inguinal lymphatic structures

Technique

Lymphatic

Rationale

Lymphatic drainage techniques reduce swelling and inflammatory exudate in the anterior hip region, improving tissue fluid dynamics and supporting the natural resolution of bursal inflammation

Add-On Approaches

Chinese Medicine

Acupuncture to GB29 (Xiyangguan) and ST32 (Futu) combined with moxibustion may reduce inflammation and improve qi and blood flow to the hip region; herbal remedies such as Du Zhuo and Huo Luo You Tong Tang address wind-damp obstruction and pain

Chiropractic

Chiropractic assessment of hip joint alignment and sacroiliac joint function; mobilization techniques to restore hip kinematics and reduce bursal irritation through improved joint mechanics

Physiotherapy

Progressive hip strengthening focusing on gluteal activation (clamshells, side-lying leg lifts, single-leg bridges), core stabilization exercises, hip flexor stretching, and functional movement retraining for activities of daily living

Remedial Massage

Deep tissue massage to the iliopsoas, rectus femoris, and adjacent hip musculature combined with myofascial release techniques to reduce muscle tension, improve tissue extensibility, and enhance circulation to the inflamed bursa

Rehabilitation Exercises

Supine Hip Flexor Stretch (Modified Thomas Test Position)

StretchingBeginner

Couch Stretch / Deep Hip Flexor Lunge Stretch

StretchingIntermediate

Supine Gluteal Bridge with Hold

StrengtheningBeginner

Side-Lying Hip Abduction (Clamshell) with External Rotation

StrengtheningBeginner

Single-Leg Glute Bridge Hold

StrengtheningIntermediate

Side-Lying Hip Abduction Lift Series

StrengtheningBeginner

Core Engagement and Dead Bug Progression

PosturalBeginner

Quadruped Hip Extension with Glute Activation

PosturalIntermediate

Supine Hip Internal and External Rotation Mobility

Range of MotionBeginner

Standing Hip Abduction with Resistance Band

StrengtheningIntermediate

Single-Leg Stance with Hip Stability

BalanceIntermediate

Supine Hip Flexor Isometric Resistance Exercise

StrengtheningBeginner

Referral Criteria

  • •Persistent symptoms beyond 6-8 weeks despite conservative treatment
  • •Suspicion of septic bursitis indicated by fever, severe pain, and local erythema
  • •Signs of hip joint pathology such as femoroacetabular impingement or labral tear
  • •Progressive neurological deficit suggesting nerve compression
  • •Significant functional limitation affecting activities of daily living or work capacity
  • •Failure to improve with appropriate physiotherapy and conservative management
  • •Need for imaging confirmation (ultrasound or MRI) when diagnosis is unclear
  • •Consideration of corticosteroid bursal injection by orthopedic specialist if conservative measures fail