From the Research
Hip synovitis is likely triggered by viral infections, including influenza, which causes an immune response leading to inflammation in the synovial lining of joints, particularly in children. The relationship between hip synovitis and influenza is supported by studies suggesting a viral etiology for transient synovitis, a condition characterized by acute hip pain and inflammation 1. Although the exact mechanism is unclear, it is believed that viral infections can trigger an immune response, leading to inflammation in the synovial lining of joints.
Key Points
- Hip synovitis is a benign, self-limiting condition that is diagnosed after excluding more serious causes of acute hip pain in children 2.
- The condition is likely triggered by viral infections, including influenza, which causes an immune response leading to inflammation in the synovial lining of joints 1.
- Management of hip synovitis typically involves rest, non-weight bearing activities, and non-steroidal anti-inflammatory drugs (NSAIDs) for pain and inflammation.
- Most cases resolve within 1-3 weeks with appropriate management, but persistent symptoms warrant medical evaluation to rule out other conditions like septic arthritis or juvenile idiopathic arthritis.
Management
To manage hip synovitis, start with rest and non-weight bearing activities for 24-48 hours, followed by a gradual return to normal activities as symptoms improve. Take NSAIDs like ibuprofen (400-600mg every 6-8 hours with food) or naproxen (250-500mg twice daily with food) for pain and inflammation for 5-7 days. Apply ice to the affected hip for 15-20 minutes every 2-3 hours during the acute phase. If symptoms are severe or persist beyond 1-2 weeks, seek medical attention as prescription-strength medications or a guided physical therapy program may be necessary.
Evidence
The evidence supporting the relationship between hip synovitis and influenza is based on studies suggesting a viral etiology for transient synovitis 1. A study published in 2010 found that children with transient synovitis were more likely to have experienced recent infection with vomiting or diarrhea and "common cold symptoms/runny nose" than children with fractures 1. Another study published in 2014 reviewed the literature on transient synovitis and found that the condition is likely viral in nature, although the exact mechanism is unclear 2.
Quality of Life
The management of hip synovitis should prioritize reducing pain and inflammation, as well as improving quality of life. This can be achieved through a combination of rest, NSAIDs, and physical therapy. It is essential to seek medical attention if symptoms persist or worsen over time to rule out other conditions that may require more aggressive treatment.