Greater Trochanteric Pain Syndrome (GTPS) is the primary cause of your lateral hip pain and difficulty with hip abduction
The lateral hip pain and difficulty moving your hip laterally (abduction) is most likely caused by the greater trochanteric pain syndrome (trochanteric friction syndrome), not the mild osteoarthritis. While both conditions can coexist, the anatomic location and functional pattern strongly point to GTPS as the dominant pain generator 1, 2.
Why GTPS is the Culprit
Anatomic Pain Pattern:
- GTPS characteristically presents as lateral hip pain with point tenderness over the greater trochanter, often radiating down the lateral thigh 3
- Hip osteoarthritis typically causes groin and anterior hip pain, not lateral hip pain 4, 2
- The guideline case explicitly describes OA patients with "right groin and lateral hip pain," where the groin component is the intra-articular pathology 4
Functional Impairment:
- GTPS involves pathology of the gluteus medius and minimus tendons (hip abductors), which directly explains your difficulty with lateral hip movement 1, 5
- Pain with hip abduction is the hallmark of abductor tendon pathology, the primary component of GTPS 5
- Your mild OA with superior acetabular changes would more typically cause pain with internal rotation and weight-bearing, not specifically with abduction 4
Clinical Differentiation
Key distinguishing features to confirm:
- Point tenderness directly over the greater trochanter = GTPS 3
- Pain with resisted hip abduction = GTPS (abductor tendon involvement) 1
- Pain with internal rotation of the hip = more suggestive of intra-articular OA 4
- Groin pain = intra-articular hip pathology 2
The evidence consistently shows that lateral hip pain is the defining feature of GTPS, while OA predominantly causes anterior/groin pain 2, 6. Your imaging shows only mild OA, which makes it even less likely to be the primary pain source compared to symptomatic GTPS.
Management Implications
For GTPS (your primary problem):
- Physical therapy targeting hip abductor strengthening is first-line with 60.5% symptom resolution at 15 months 7
- NSAIDs when not contraindicated 3, 7
- Corticosteroid injection for acute symptom relief, most effective when combined with PT 7, 5
- Extracorporeal shock wave therapy (ESWT) shows 68.3% improvement if conservative measures fail 7
For mild OA (secondary consideration):
- The 2023 AAOS guidelines recommend NSAIDs (strong recommendation) and PT (moderate recommendation) for mild-to-moderate symptomatic hip OA 4
- Your mild OA may benefit from the same conservative measures, but is unlikely the primary driver of your lateral symptoms
Common Pitfall
Do not attribute all hip pain to the radiographic finding of OA. The morbidity of GTPS is equivalent to end-stage hip OA requiring total hip replacement 8, yet it is frequently underdiagnosed or dismissed. The anatomic location of your pain (lateral) and functional limitation (abduction) are inconsistent with mild intra-articular OA as the primary source 2, 6.