M87.150

Clinical Causes: Use of corticosteroids, especially at high doses or over long periods Certain chemotherapy drugs that affect bone blood supply Prolonged intake of other medications known to impair blood circulation in bones Pre-existing health conditions that increase susceptibility, such as autoimmune diseases Combination of drug therapy and lifestyle factors that compromise blood flow to bones

Key Symptoms: Deep, persistent pain in the pelvis or hip region Joint stiffness and reduced range of motion Difficulty bearing weight or walking Swelling and tenderness around the affected area Progressive worsening of pain, often without an obvious injury In advanced stages, signs of bone collapse or deformity may appear

Diagnosis Path: Diagnosis of drug-induced osteonecrosis of the pelvis involves a combination of clinical evaluation and imaging studies. Magnetic resonance imaging (MRI) is the preferred method, providing detailed visualization of bone tissue and early detection of necrosis. X-rays may reveal bone structure changes in advanced cases. A thorough medical history focusing on medication usage and symptom progression supports the diagnosis. Blood tests usually do not confirm osteonecrosis but may help rule out other causes of joint pain.

Treatment Protocols: Managing osteonecrosis due to drugs in the pelvis aims to relieve pain, halt disease progression, and restore function. Treatment strategies include: - Rest and activity modification to reduce joint stress - Medications such as pain relievers or anti-inflammatory drugs - Physical therapy to improve joint mobility and strength - Assistive devices like crutches or walkers to reduce weight-bearing - Surgical interventions such as core decompression, bone grafts, or joint replacement in severe cases Close monitoring by healthcare professionals is essential, especially in cases where medication adjustment is possible to prevent further bone damage.