Mechanism Of Injury
The Mechanism of injury of sacroiliac joint pain is a result of a combination of effects. Anatomically, pain in this region may be caused by pathologic changes that effect many different SI joint structures. These changes include capsular or synovial disruption, capsular and ligamentous tension, hypomobility or hypermobility, extraneous compression or shearing forces, abnormal joint mechanics, microfractures, chondromalacia, soft tissue injury, and inflammation. Mechanical deficiencies may also cause an individual to experience SI joint pain. These may include intraartical sources including arthritis and infection. Further, extraarticular mechanical deficiencies may include enthesopathy, fractures, ligamentous injury, and myofascial pain.
Specific etiologies that may result in SI joint pain range from rare events to more common occurrences. Such etiologies include pyogenic infection, malignancy, motor vehicle accident, athletic injuries, prolonged lifting and bending, and torsional strain.
References:
1. Cohen SP. Sacroiliac joint pain: a comprehensive review of anatomy, diagnosis, and treatment. Anesth Analg. Nov 2005;101(5):1440-1453.
2. Goodman, C. & Snyder, T. (2007). Differential Diagnosis for Physical Therapists: Screening for Referral. St. Louis, Missouri: Saunders Elsevier.
Specific etiologies that may result in SI joint pain range from rare events to more common occurrences. Such etiologies include pyogenic infection, malignancy, motor vehicle accident, athletic injuries, prolonged lifting and bending, and torsional strain.
References:
1. Cohen SP. Sacroiliac joint pain: a comprehensive review of anatomy, diagnosis, and treatment. Anesth Analg. Nov 2005;101(5):1440-1453.
2. Goodman, C. & Snyder, T. (2007). Differential Diagnosis for Physical Therapists: Screening for Referral. St. Louis, Missouri: Saunders Elsevier.