M76.0 Gluteus Medius Tendinitis – Causes & Treatment
M76.0 is the ICD-10 code for gluteus medius tendinitis, an irritation or inflammation of the tendon of the middle gluteal muscle, causing lateral hip pain.
Things worth knowing about "M76.0"
M76.0 is the ICD-10 code for gluteus medius tendinitis, an irritation or inflammation of the tendon of the middle gluteal muscle, causing lateral hip pain.
Definition and ICD-10 Code M76.0
M76.0 is the code assigned by the International Classification of Diseases (ICD-10) to gluteus medius tendinitis – an inflammation or overuse reaction of the tendon of the gluteus medius muscle, the middle gluteal muscle located on the outer side of the hip. This muscle plays a key role in stabilising the pelvis during walking and standing. Irritation or degeneration of its tendon leads to pain in the lateral hip region and can significantly affect mobility and quality of life.
Causes
Gluteus medius tendinitis typically develops as a result of mechanical overload or repetitive strain on the hip. Common causes include:
- Overuse during sports or physical activity (e.g. running, hiking, cycling)
- Pelvic misalignment or leg length discrepancy
- Muscular imbalances in the hip and pelvic region
- Degenerative changes of the tendon associated with ageing
- Inflammatory conditions such as rheumatoid arthritis or psoriatic arthritis
- Prolonged sitting or standing on hard surfaces
Symptoms
The hallmark symptom of gluteus medius tendinitis is pain in the lateral hip area, which may radiate down into the thigh. Common complaints include:
- Pain when walking, climbing stairs, or lying on the affected side
- Tenderness on palpation over the greater trochanter (the bony prominence on the outer thigh)
- Weakness or instability when standing on one leg
- Worsening of symptoms after prolonged sitting or upon getting out of bed in the morning
Symptoms may develop suddenly or gradually over weeks to months.
Diagnosis
Diagnosis of gluteus medius tendinitis is based on clinical examination and imaging studies:
- Physical examination: Assessment of pain location, range of motion, and muscle strength; tenderness at the greater trochanter is a typical finding
- Ultrasound (sonography): Visualisation of tendon thickening, calcifications, or partial tears
- MRI (magnetic resonance imaging): Detailed assessment of tendon integrity and the extent of any tears
- X-ray: Exclusion of bony changes or calcific deposits
Treatment
Treatment depends on the severity of the condition and generally begins with conservative measures:
Conservative Treatment
- Rest and activity modification to reduce stress on the affected hip
- Physiotherapy: Strengthening of the gluteal muscles, stretching of surrounding muscle groups, and correction of pelvic alignment
- Anti-inflammatory medications (NSAIDs such as ibuprofen or diclofenac) for pain relief
- Corticosteroid injections around the tendon for severe pain
- Shockwave therapy in chronic cases
- Cold or heat therapy to relieve acute symptoms
Surgical Treatment
In rare cases involving complete tendon tears or failure to respond to conservative therapy, surgical reconstruction of the tendon may be required.
Prognosis
With consistent treatment and a targeted rehabilitation programme, the prognosis for gluteus medius tendinitis is generally favourable. Most patients respond well to physiotherapy and conservative measures. Chronic cases can occur if the condition is left untreated or activity levels are not appropriately reduced.
References
- World Health Organization (WHO): International Statistical Classification of Diseases and Related Health Problems, 10th Revision (ICD-10), Code M76.0 – Gluteal tendinitis.
- Grimaldi A, Mellor R, Hodges P et al.: Gluteal Tendinopathy: A Review of Mechanisms, Assessment and Management. Sports Medicine. 2015;45(8):1107–1119.
- Lequesne M, Mathieu P, Vuillemin-Bodaghi V et al.: Gluteal tendinopathy in refractory greater trochanter pain syndrome: diagnostic value of two clinical tests. Arthritis & Rheumatism. 2008;59(2):241–246.
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