Ipsilateral Lumbosacral Dysfunction among Taxi Drivers of Left Side Steering Wheel

摘要

Low back pain (LBP) is a common illness that has potential sources, like intervertebral discs, facets and sacroiliac joints (SIJ). Primary source of pain in 10% to 27% of patients with mechanical LBP is SIJ which is a true diarthrodial joint; separated by a joint space containing synovial fluid and a fibrous capsule. Several mechanisms of injury may cause SIJ pain such as a direct fall on the buttocks, motor vehicle accident, and an unanticipated step into a hole or from a miscalculated height (1). SIJ is a non-weight-bearing joint that function to absorb forces from various directions. Onset of SIJ dysfunction is usually during trunk flexion when the weight of the upper trunk rotate the innominate anteriorly and downward during anterior shift and becomes fixed on the sacrum (2). Similar movement can be observed when a taxi driver gets out of the car, therefore, the aim of this study was to assess this repetitive rotational effect on the SIJ of lefthand drive taxi drivers.