Previously called trochanteric bursitis - renamed as discovered that the trochanteric bursae plays a smaller role than previously thought
Caused by irritation to tissues overlying greater trochanter (e.g. muscles, tendons, fascia or bursae) resulting in pain
Often co-existence of bursitis and tendinopathy
Cause:
Repetitive friction between iliotibial band and greater trochanter causing irritation to surrounding structures
Rarely caused by infection of trochanteric bursa (septic bursitis) - patients would have warm erythematous swelling and pain over bursa and may be systemically unwell
Frequently seen with other conditions - OA, degenerative disc disease, radiculopathy, RA, iliotibial band syndrome
Risk factors:
Female aged 40-60 (although can occur in young people especially runners, footballers and dancers)
High BMI
Sudden increase in activity/load
Trauma
Smoking - delays tissue healing
Presentation:
Gradual onset lateral hip pain over greater trochanter - described as aching/burning
Pain may radiate down outer thigh
Worse with activity, standing after sitting for a long period, sitting crossed legged
Pain can disrupt sleep - painful lying on affected side
Examination:
Tenderness over greater trochanter
Not usually any swelling (unlike bursitis in other areas)
Antalgic gait
Trendelenburg gait and sign - hip abductors inset into greater trochanter - tendinopathy of these can cause greater trochanteric pain syndrome
Lateral hip pain on resisted abduction, internal and external rotation
Diagnosis is clinical, core clinical features are:
Lateral hip pain
Aggravated by physical activity
Point tenderness adjacent to greater trochanter
Management:
Reassurance - usually self limiting, resolves in over 90% of people with conservative treatment but may take months
Conservative - relative rest, ice, analgesia, manage risk factors e.g. weight loss and smoking
Refer to physio if walking aids needed
If conservative measures fail - corticosteroid injection and referral to physio
Occasionally refractory cases might need surgical treatment
Refer if:
Atypical symptoms
Red flags - infection, malignancy, inflammatory arthropathy, trauma