Greater Trochanteric Pain Syndrome | Lateral Hip Pain | Gluteal Tendinopathy vs Bursitis
- Greater trochanteric pain syndrome (GTPS) is the preferred umbrella term encompassing trochanteric bursitis, gluteal tendinopathy, and ITB pathology
- Up to two-thirds of lateral hip pain is due to gluteal tendinopathy, not true bursitis
- Finkelstein test is NOT for trochanteric bursitis — use palpation over greater trochanter and resisted external rotation
- Conservative management (physiotherapy, NSAIDs, activity modification) is first-line for at least 6-8 weeks
- Corticosteroid injection provides short-term relief but may worsen gluteal tendon pathology if tendinopathy is the primary driver
- “GTPS is the third most common musculoskeletal presentation in primary care after back and knee pain
- “Trendelenburg sign and weak hip abduction suggest gluteal tendinopathy rather than isolated bursitis
- “MRI differentiates bursitis (fluid in bursa) from tendinopathy (tendon thickening, partial tear)
- “Do NOT inject corticosteroid near gluteal tendon insertions without imaging guidance
Greater Trochanteric Pain Syndrome (GTPS) is the correct modern term. Trochanteric bursitis, gluteal tendinopathy, and ITB friction syndrome are sub-diagnoses under this umbrella. Do not use 'bursitis' as a catch-all in the exam — specify the underlying pathology.
Gluteal tendinopathy is more common than true bursitis. Up to two-thirds of GTPS patients have gluteus medius or minimus tendinopathy or tears. Differentiating the two changes management: tendinopathy requires progressive loading, not just anti-inflammatory measures.
Palpation over greater trochanter reproduces pain. Resisted hip abduction in side-lying (30 degrees abduction) provokes gluteal tendon pain. Single-leg stance for 30 seconds reproduces lateral hip pain in GTPS. Trendelenburg sign suggests abductor weakness from tendinopathy.
Conservative first: minimum 6-8 weeks of structured physiotherapy (hip abductor strengthening, ITB stretching, activity modification). Injection only after conservative failure. Surgical referral reserved for refractory cases with confirmed tendon tears.
| Presentation | Likely Diagnosis | First-line Treatment | Key Pearl |
|---|---|---|---|
| Lateral hip pain, tender trochanter, no weakness | Trochanteric bursitis | NSAIDs, physiotherapy, ice, activity modification | Often self-limiting with conservative care |
| Lateral hip pain, Trendelenburg, weak abduction | Gluteal tendinopathy | Progressive abductor loading program (12 weeks) | Mimics bursitis but needs tendon-specific rehab |
| Refractory lateral pain after 3 months conservative | Chronic GTPS with possible partial tear | Image-guided injection, consider PRP if tendinopathy | MRI before injection to confirm target pathology |
LATERALGTPS Differential Diagnosis
Hook:Think LATERAL when evaluating lateral hip pain — the cause is not always the trochanter!
STANDClinical Assessment of Lateral Hip Pain
Hook:STAND on one leg to screen for GTPS — the 30-second single-leg stance is the best provocative test!
PRICESConservative Management Protocol
Hook:PRICES is the first-line protocol for GTPS — commit to 6-8 weeks before escalating!
Overview and Epidemiology
Greater trochanteric pain syndrome (GTPS) is one of the most common musculoskeletal complaints, with an estimated incidence of 1.8 per 1000 per year. It is the third most frequent reason for primary care musculoskeletal consultation after low back pain and knee pain. Despite its prevalence, it is frequently misdiagnosed as hip osteoarthritis or lumbar radiculopathy, leading to delayed or inappropriate treatment. In the exam, distinguishing GTPS from lumbar spine referral and hip OA is a classic differential diagnosis challenge.
- Prevalence: 10-25 percent of adults will experience lateral hip pain
- Sex: Female-to-male ratio approximately 4:1
- Peak age: 40-60 years (perimenopausal women at highest risk)
- Associations: Obesity, lumbar spine pathology, hip OA, total hip replacement
- Bilateral: Up to one-third of cases
- Subgluteus maximus bursa: Largest and most commonly inflamed (overlies greater trochanter)
- Subgluteus medius bursa: Deep to gluteus medius tendon
- Subgluteus minimus bursa: Deep to gluteus minimus tendon
- Gluteus medius/minimus insertions: Lateral and superoposterior facets of greater trochanter
- ITB: Overlies greater trochanter, friction can contribute to pain
Pathophysiology
The term 'trochanteric bursitis' is historically entrenched but anatomically imprecise. Modern imaging (MRI, ultrasound) demonstrates that true bursitis accounts for only a minority of cases. The majority of patients have gluteus medius or minimus tendinopathy, with or without associated bursal inflammation. The bursae may be secondarily inflamed from adjacent tendon pathology, mechanical friction, or direct pressure. In the exam, using the term 'GTPS' and then specifying the underlying pathology demonstrates a higher level of understanding than defaulting to 'bursitis'.
| Feature | Trochanteric Bursitis | Gluteal Tendinopathy | ITB Syndrome |
|---|---|---|---|
| Primary pathology | Inflammation of subgluteal bursa | Degeneration / micro-tears of gluteus medius/minimus tendon | Friction of ITB over greater trochanter |
| Typical patient | Acute onset, overuse, direct pressure | Female 40-60, insidious onset, abductor weakness | Runners, cyclists, repetitive flexion/extension |
| Key clinical finding | Point tenderness, warm bursa, swelling | Weak abduction, Trendelenburg, pain on resisted abduction | Pain at 30 degrees of flexion (Noble test), tight ITB |
| MRI findings | Fluid in bursa, normal tendon | Tendon thickening, increased signal, partial or full tear | ITB thickening, fluid deep to ITB |
Three main bursae around the greater trochanter:
- Subgluteus maximus (trochanteric bursa): Largest, overlies the trochanter superficial to gluteus medius
- Subgluteus medius: Deep to gluteus medius tendon, at its insertion
- Subgluteus minimus: Deep to gluteus minimus tendon
The subgluteus maximus bursa is the one most commonly inflamed in clinical 'trochanteric bursitis'. It sits between the gluteus maximus and the greater trochanter / gluteus medius tendon.
Gluteus medius is the primary hip abductor and pelvic stabiliser during gait. Its tendon insertion on the greater trochanter is analogous to the supraspinatus insertion on the greater tuberosity of the shoulder. Like rotator cuff disease:
- Tendinopathy progresses from reactive to degenerative if overloaded
- Partial-thickness tears may progress to full-thickness tears
- Corticosteroid injection may provide temporary relief but risks further tendon degradation
- Progressive loading is the evidence-based treatment for tendinopathy
Classification and Types
GTPS Sub-diagnoses
| Subtype | Pathology | Typical Features | Prevalence in GTPS |
|---|---|---|---|
| Gluteal tendinopathy | Degeneration of gluteus medius/minimus tendons | Insidious onset, abductor weakness, Trendelenburg positive | Approximately 50-66 percent |
| Trochanteric bursitis (isolated) | Inflammation of subgluteal bursae without tendon pathology | Acute tenderness, swelling, pain on direct pressure | Approximately 15-20 percent |
| ITB syndrome | Friction or tightness of iliotibial band over trochanter | Pain on flexion-extension, runners and cyclists, Noble test positive | Approximately 10-15 percent |
| Mixed / combined | Tendinopathy with secondary bursitis | Features of both tendon and bursal pathology | Approximately 15-25 percent |
Understanding the subtype guides management: tendinopathy needs loading, bursitis needs anti-inflammatory measures, and ITB syndrome needs stretching and biomechanical correction.
Clinical Assessment
- Pain location: Lateral aspect of hip, may radiate to lateral thigh (but NOT below knee)
- Aggravating factors: Lying on affected side, climbing stairs, rising from chair, crossing legs
- Night pain: Common — difficulty sleeping on the affected side
- Onset: Insidious (tendinopathy) vs acute (bursitis)
- Functional limitation: Difficulty with stairs, prolonged walking, side-sleeping
- Previous treatment: NSAIDs, physiotherapy, injections (response and duration)
- Inspect: Gait pattern (Trendelenburg), pelvic tilt, muscle wasting (gluteal)
- Palpate: Point tenderness over greater trochanter (posterolateral aspect most common)
- ROM: Usually full hip range of motion (unlike hip OA which restricts internal rotation)
- Resisted abduction: Pain at 30 degrees abduction in side-lying (gluteal tendinopathy)
- Single-leg stance: 30 seconds — pain reproduction is highly sensitive for GTPS
- Trendelenburg: Pelvis drops on contralateral side during single-leg stance
- Neurological: Screen lumbar spine to exclude radiculopathy
GTPS is frequently misdiagnosed. Key distinguishing features:
- GTPS: Lateral hip tenderness, full hip ROM (especially internal rotation), pain on trochanteric palpation, normal neurological exam
- Hip OA: Groin pain (more than lateral), restricted internal rotation, pain on flexion-adduction-internal rotation (FADIR may be positive), radiographic changes
- Lumbar radiculopathy (L4-L5): Pain radiates below knee, dermatomal sensory changes, reflex changes, positive neural tension signs, tenderness over lumbar paraspinals rather than trochanter
Do not assume lateral hip pain is trochanteric bursitis without examining the lumbar spine and hip joint.
| Condition | Pain Location | Key Examination Finding | Discriminating Test |
|---|---|---|---|
| GTPS (bursitis/tendinopathy) | Lateral hip, may radiate to lateral thigh | Point tenderness over greater trochanter | Single-leg stance pain, resisted abduction pain |
| Hip osteoarthritis | Groin (primary), may refer laterally | Restricted internal rotation, FADIR positive | Radiographs: joint space narrowing, osteophytes |
| Lumbar radiculopathy (L4-L5) | Radiating pain below knee, dermatomal | Neurological signs, positive SLR or femoral stretch | MRI lumbar spine, neurological examination |
| Femoroacetabular impingement | Groin, may refer to lateral hip | Pain on FADIR, positive impingement test | MRI arthrogram, radiographs (cam/pincer lesions) |
| Meralgia paraesthetica | Anterolateral thigh, burning, tingling | Sensory changes in lateral femoral cutaneous nerve distribution | Tinel over ASIS region, nerve conduction studies |
| Femoral neck stress fracture | Groin or lateral hip, weight-bearing pain | Pain on hopping or fulcrum test, progressive pain | MRI (urgent), risk factors: female athlete triad |
In a female runner or military recruit with lateral hip or groin pain that is progressive and worse with weight-bearing, always consider femoral neck stress fracture. This is a potentially catastrophic diagnosis to miss. Request an MRI if plain radiographs are normal but clinical suspicion exists. A positive fulcrum test (pain when the femur is stressed over the examiner's hand as a fulcrum) should raise concern.
Investigations
Imaging Protocol
Views: AP pelvis, lateral hip (cross-table lateral or frog lateral)
Look for: Greater trochanteric enthesophytes, calcific tendinopathy, hip OA (joint space narrowing), femoral neck stress fracture (may be normal early), pelvic pathology
Clinical correlation: Radiographs are often normal in isolated GTPS — their primary role is excluding other pathology (hip OA, fracture, tumour)
Indication: Refractory symptoms after 6-8 weeks of conservative management, or when gluteal tendon tear is suspected (Trendelenburg, weakness)
Findings in bursitis: Fluid distension of subgluteal bursae (high T2 signal), peritrochanteric oedema
Findings in tendinopathy: Increased T2 signal within gluteus medius/minimus tendons, tendon thickening, partial or full-thickness tears, tendon retraction
Hip joint assessment: Concurrent labral tears, chondral damage, femoroacetabular impingement
Indication: Dynamic assessment of peritrochanteric structures, image-guided injection
Findings: Bursal fluid, tendon thickening, calcifications, real-time assessment of ITB snapping
Advantage: Allows simultaneous diagnostic and therapeutic injection under direct visualization
Limitation: Operator-dependent, cannot assess deep structures or hip joint as well as MRI
The diagnosis of GTPS is primarily clinical. Imaging is not required for typical presentations. Request MRI when: (1) symptoms are refractory to 3 months of conservative management, (2) there is significant abductor weakness suggesting a tendon tear, (3) there is diagnostic uncertainty (possible hip OA, stress fracture, or lumbar pathology), or (4) surgical planning is being considered. MRI is the gold standard for differentiating bursitis from tendinopathy and grading tendon tears.
Management Algorithm
Conservative Management (First-Line for All Patients)
Goal: Reduce pain and inflammation, restore hip abductor function, address biomechanical factors
Conservative Protocol
Relative rest: Avoid aggravating activities (cross-legged sitting, lying on affected side, climbing stairs excessively)
Ice: Ice massage over greater trochanter for 15 minutes, 3-4 times daily
NSAIDs: Oral NSAIDs (if not contraindicated) for 2-4 weeks for pain relief and anti-inflammatory effect
Sleep modification: Pillow between knees, avoid sleeping on affected side
Education: Reassure regarding benign nature, explain condition and expected timeline
Physiotherapy referral: Structured hip abductor strengthening program
Isometric exercises: Isometric hip abduction in side-lying (pain-free)
Progressive loading: Graduated from isometric to isotonic to functional exercises
Stretching: ITB, hip flexors, piriformis — adjunctive, not primary treatment
Manual therapy: Trochanteric soft tissue mobilization, myofascial release
Biomechanical correction: Footwear, gait retraining, core stability
Progressive resistance: Theraband, weight-bearing exercises, single-leg balance
Functional retraining: Stair climbing, sit-to-stand, return to sport-specific activities
Maintenance program: Independent home exercise program for long-term management
Review at 12 weeks: If still symptomatic, consider imaging and injection
For gluteal tendinopathy, the rehabilitation approach follows tendinopathy principles: start with isometric loading (pain reduction), progress to isotonic loading (strength), then functional loading. This is different from isolated bursitis management which focuses on anti-inflammatory measures. Always assess which pathology predominates — it guides the rehab approach.
Complications
| Complication | Incidence | Risk Factors | Management |
|---|---|---|---|
| Chronic pain (greater than 6 months) | 15-30 percent develop chronic symptoms | Delayed diagnosis, inadequate rehab, obesity | Multidisciplinary pain management, re-evaluate diagnosis |
| Gluteal tendon tear progression | Partial tears may progress to full-thickness | Repeated corticosteroid injections, continued overload | Surgical repair if full-thickness with functional deficit |
| Corticosteroid-related tendon damage | Reported with multiple injections into tendon | More than 3 injections, blind technique, tendinopathy | Avoid steroid into tendon, use image guidance, limit injections |
| Misdiagnosis (lumbar, hip OA, stress fracture) | Common — delayed diagnosis frequent | Not examining lumbar spine or hip joint, reliance on X-rays | Always perform full lumbar and hip examination |
| Post-surgical complications | Variable depending on procedure | Obesity, smoking, diabetes, poor tissue quality | Appropriate patient selection, rehabilitation adherence |
The most clinically significant 'complication' of trochanteric bursitis/GTPS is incorrect diagnosis. Patients with lumbar radiculopathy, hip OA, femoral neck stress fractures, or femoroacetabular impingement may present with lateral hip pain and be inappropriately treated for bursitis. Always perform a complete examination including lumbar spine assessment, hip joint assessment, and neurological screening before diagnosing GTPS.
Outcomes and Prognosis
| Pathology | Treatment | Expected Outcome | Long-term Prognosis |
|---|---|---|---|
| Isolated bursitis | NSAIDs + physiotherapy +/- one injection | 80-90 percent resolution within 3-6 months | Excellent, low recurrence with activity modification |
| Gluteal tendinopathy (no tear) | Progressive loading program (12 weeks) | 60-80 percent significant improvement with structured rehab | Good with ongoing maintenance exercises |
| Gluteal tendon partial tear | Rehabilitation first, consider PRP, surgery if refractory | 50-70 percent improve with non-operative management | Variable — may progress, monitor with MRI |
| Full-thickness gluteal tear | Surgical repair (open or endoscopic) | 70-85 percent good-to-excellent in case series | Functional improvement but rarely full strength return |
Best prognosis: Isolated bursitis, acute presentation, compliant with physiotherapy, normal BMI, no associated lumbar or hip pathology
Poor prognosis: Chronic symptoms (over 6 months), gluteal tendon tears, obesity, concurrent lumbar spine pathology, previous hip surgery (especially lateral approach THR), poor compliance with rehabilitation
Key message: Early and accurate diagnosis with appropriate rehabilitation gives the best outcomes. Corticosteroid injection should not replace structured physiotherapy.
Evidence Base and Key Trials
Exercise compared to a control condition or other conservative treatment options in patients with Greater Trochanteric Pain Syndrome: a systematic review and meta-analysis of randomized controlled trials
- Systematic review and meta-analysis of RCTs comparing exercise interventions for GTPS
- Exercise (particularly hip abductor strengthening) significantly reduced pain and improved function compared to control
- Corticosteroid injection showed short-term benefit but exercise had superior medium-to-long-term outcomes
- Combined approaches (exercise plus injection) did not outperform exercise alone at longer follow-up
Gluteal Tendinopathy: Integrating Pathomechanics and Clinical Features in Its Management
- Gluteal tendinopathy is the primary pathology in the majority of GTPS cases
- The condition is analogous to rotator cuff disease of the hip — progressive tendon degeneration
- Corticosteroid injection may provide temporary pain relief but risks further tendon degeneration
- Progressive loading (isometric to isotonic to functional) is the recommended rehabilitation approach
Education plus exercise versus corticosteroid injection use versus a wait and see approach on global outcome and pain from gluteal tendinopathy: prospective, single blinded, randomised clinical trial
- RCT comparing corticosteroid injection, education plus exercise, and combined approach for GTPS
- Education plus progressive exercise (tendinopathy-based protocol) showed superior outcomes at 52 weeks
- Corticosteroid injection had better short-term results but worse long-term outcomes than exercise
- Combined injection plus exercise was not superior to exercise alone at one year
Prospective evaluation of magnetic resonance imaging and physical examination findings in patients with greater trochanteric pain syndrome
- MRI study of patients with clinical GTPS to determine underlying pathology
- Gluteal tendon pathology (tendinopathy or tears) was present in the majority of cases
- True isolated bursitis was uncommon — most bursitis was associated with adjacent tendon disease
- Suggested that GTPS is primarily a tendinopathy rather than a bursitis condition
The Effectiveness of Platelet-Rich Plasma Injections in Gluteal Tendinopathy: A Randomized, Double-Blind Controlled Trial Comparing a Single Platelet-Rich Plasma Injection With a Single Corticosteroid Injection
- Double-blind RCT comparing a single PRP injection to a single corticosteroid injection for gluteal tendinopathy
- PRP showed significantly greater improvement in pain and function compared to corticosteroid at 12 weeks
- PRP demonstrated sustained benefit at 6 and 12 months, while corticosteroid effects diminished over time
- No serious adverse events in either group — both treatments were well tolerated
Exam Viva Scenarios
Practise clinical reasoning and management decisions out loud
“A 52-year-old woman presents with a 3-month history of right lateral hip pain. It is worse when she lies on her right side at night and when climbing stairs. She has tried over-the-counter ibuprofen with partial relief. On examination, there is point tenderness over the right greater trochanter. Hip range of motion is full and pain-free except for pain on resisted abduction in side-lying. Trendelenburg sign is negative. Lumbar spine examination is normal. What is the diagnosis and how would you manage this?”
“A 58-year-old woman has had left lateral hip pain for 9 months despite physiotherapy and two corticosteroid injections (the last one 3 months ago). She now has a positive Trendelenburg sign on the left and reports weakness when trying to abduct the leg against gravity. MRI shows a full-thickness tear of the gluteus medius tendon at its insertion on the greater trochanter with 2 cm of retraction and associated bursal fluid. What is your diagnosis and management plan?”
MCQ Practice Points
Q: What is the preferred term for lateral hip pain over the greater trochanter? A: Greater trochanteric pain syndrome (GTPS). This umbrella term encompasses trochanteric bursitis, gluteal tendinopathy, and ITB pathology. 'Trochanteric bursitis' is a specific sub-diagnosis, not the overall condition. The exam rewards candidates who use the correct terminology and understand the spectrum.
Q: What is the most common underlying pathology in GTPS? A: Gluteal tendinopathy (gluteus medius or minimus). MRI studies show that approximately 50-66 percent of GTPS cases have gluteal tendon pathology as the primary driver, with isolated bursitis being less common. This distinction is important because tendinopathy requires progressive loading, while bursitis is managed with anti-inflammatory measures.
Q: What is the most sensitive clinical test for GTPS? A: The single-leg stance test. Standing on the affected leg for 30 seconds reproduces lateral hip pain in the vast majority of GTPS patients. Point tenderness over the greater trochanter is common but non-specific. Resisted abduction in side-lying at 30 degrees is more specific for gluteal tendinopathy.
Q: How do you differentiate GTPS from hip osteoarthritis clinically? A: Hip ROM. GTPS has full hip range of motion (especially internal rotation), while hip OA restricts internal rotation and flexion. GTPS pain is reproduced by trochanteric palpation and single-leg stance, while hip OA pain is reproduced by FADIR (flexion-adduction-internal rotation) and is typically groin-predominant. Radiographs show OA changes; GTPS radiographs are typically normal.
Q: What is the evidence-based first-line management for GTPS? A: Structured physiotherapy with progressive hip abductor strengthening. The LEAP trial demonstrated that education plus exercise was superior to corticosteroid injection at 52 weeks. Conservative management should be trialled for a minimum of 6-8 weeks before considering injection, and 3-6 months before considering surgery.
Q: What are the risks of corticosteroid injection in GTPS? A: Tendon degradation if injected into the gluteal tendons (rather than the bursa). Image guidance (ultrasound) is recommended to ensure accurate placement. Corticosteroid provides short-term relief (4-12 weeks) but does not offer long-term benefit and may worsen underlying tendinopathy. The LEAP trial showed exercise was superior to injection at one year.
Guidelines, Registries & Global Practice
- GTPS incidence: Approximately 1.8 per 1000 per year in primary care populations
- Female predominance: 4:1 ratio, peak age 40-60 years, perimenopausal women at highest risk
- Associations: Obesity (BMI over 30), low back pain, hip OA, total hip replacement (lateral approach)
- Post-THR: Up to 20 percent of patients develop GTPS after total hip replacement via lateral approach due to abductor disruption
- Bilateral involvement: Reported in up to one-third of cases
- High-resource settings: MRI readily available for refractory cases, image-guided injections, specialised hip physiotherapy, endoscopic surgical options
- Limited-resource settings: Clinical diagnosis with trial of conservative management, blind injection if available, plain radiographs to exclude other pathology
- Universal principle: Diagnosis is clinical, first-line treatment is conservative (physiotherapy, NSAIDs, activity modification), and outcomes depend more on rehabilitation compliance than on access to advanced imaging or injections
- Global consensus: Conservative management before injection; imaging before surgery; GTPS as umbrella term
| Source | Diagnosis Emphasis | First-line Treatment | Injection Guidance |
|---|---|---|---|
| AAOS (US) | Clinical diagnosis; radiographs to exclude OA and fracture; MRI for refractory cases | Physiotherapy (abductor strengthening), NSAIDs, activity modification for minimum 6-8 weeks | Image-guided corticosteroid for true bursitis; PRP as emerging option for tendinopathy |
| BOA / BSR (UK) | GTPS as umbrella term; differentiate from hip OA and lumbar referral | Education plus progressive exercise program; NICE recommends physiotherapy as first-line | Corticosteroid injection if conservative measures fail; ultrasound guidance preferred |
| NICE NG226 (UK, musculoskeletal) | Clinical assessment; imaging not routinely needed for diagnosis | Self-management advice, exercise referral, consider topical or oral NSAIDs | Corticosteroid injection for persistent symptoms; limit to 3 injections per site |
| Australian Physiotherapy Association | Clinical diagnosis with emphasis on differentiating tendinopathy from bursitis | Load management and progressive strengthening; avoid corticosteroid as first-line | PRP or image-guided injection only after structured rehabilitation trial |
There is no dedicated arthroplasty or implant registry for GTPS, as most cases are managed non-operatively. However, national joint replacement registries (NJR UK, AOANJRR Australia) track post-THR abductor complications including GTPS after lateral approach. The evidence base is evolving from small case series and expert opinion to higher-quality RCTs such as the LEAP trial, which demonstrated the superiority of exercise-based management over corticosteroid injection.
Record in every GTPS presentation:
- Examination of hip joint (ROM, impingement tests) to exclude hip OA
- Lumbar spine assessment to exclude radiculopathy
- Trochanteric palpation, single-leg stance test, Trendelenburg sign, and resisted abduction
- Duration and adequacy of conservative management before injection
- Injection: image-guided vs blind, corticosteroid vs PRP, response documented
- If MRI performed: document bursitis vs tendinopathy vs tear — guides ongoing management
A missed hip OA diagnosis or femoral neck stress fracture in a patient labelled as 'trochanteric bursitis' is a recurring source of medicolegal claims. Always examine the hip joint and lumbar spine before attributing lateral hip pain to GTPS.
Controversies & Areas of Uncertainty
Corticosteroid provides faster short-term relief but worse long-term outcomes compared to exercise. PRP shows promising medium-term results for tendinopathy in limited studies, but high-quality RCTs are lacking. The choice remains resource-dependent and patient-specific. Neither injection should replace rehabilitation.
Tendinopathy-based loading protocols (isometric to isotonic to functional) are recommended, but the optimal exercise type, dose, and duration are not precisely defined. Most protocols recommend 8-12 weeks of progressive loading, with maintenance exercises ongoing. Individual tailoring based on pain response and functional progress is key.
Endoscopic gluteus medius repair is increasingly performed but has no RCT evidence of superiority over open repair. Theoretical advantages include smaller incisions and lower morbidity, but outcomes are comparable in case series. Surgeon experience and tear characteristics determine approach.
Extracorporeal shockwave therapy (ESWT) has shown benefit in some case series for refractory GTPS, particularly calcific tendinopathy. However, evidence quality is low and it remains an adjunctive option rather than a standard treatment. Not universally available.
Key Terminology and Anatomy
- GTPS = umbrella term for lateral hip pain (bursitis, tendinopathy, ITB syndrome)
- Gluteal tendinopathy is the most common cause (50-66 percent of GTPS), not bursitis
- Subgluteus maximus bursa is the most commonly inflamed bursa
- Gluteus medius inserts on superoposterior facet of greater trochanter (like supraspinatus analogy)
Diagnosis
- Clinical diagnosis: point tenderness over trochanter, full hip ROM, pain on single-leg stance
- Trendelenburg and weak abduction suggest tendinopathy rather than isolated bursitis
- Always examine lumbar spine and hip joint to exclude referred pain and OA
- MRI gold standard for differentiating bursitis from tendinopathy and grading tears
Differential Diagnosis
- Hip OA: groin pain, restricted internal rotation, radiographic changes
- Lumbar radiculopathy L4-L5: pain below knee, neurological signs, SLR positive
- Femoral neck stress fracture: progressive weight-bearing pain, urgent MRI needed
- Meralgia paraesthetica: burning anterolateral thigh, sensory changes
Management Algorithm
- First-line: structured physiotherapy (progressive abductor loading) for minimum 6-8 weeks
- Second-line: image-guided injection (corticosteroid for bursitis, PRP for tendinopathy)
- Third-line: surgical referral for documented tendon tears with functional deficit after 6 months
- Activity modification throughout: avoid side-sleeping, crossing legs, excessive stairs
Evidence-Based Pearls
- LEAP trial: exercise superior to corticosteroid injection at 52 weeks
- Corticosteroid injection risks tendon damage if placed into gluteal tendons
- Image-guided injection accuracy approximately 90 percent vs 50 percent blind
- Gluteal tendon tears are the hip equivalent of rotator cuff tears