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Supportive cushions produce no practical reduction in lumbar lordosis

¹ Department of Radiology, Addenbrooke's NHS Trust and the University of Cambridge, Hills Road, Cambridge CB2 2QQ and ² Department of Public Health and Primary Care, University of Cambridge, Cambridge CB2 2SR, UK

View larger version (119K): [in a new window]   Figure 1. T2 weighted sagittal images of a 28-year-old woman. Guidelines of angle (white) highlight the little appreciable difference in position (a) without and (b) with a supportive cushion behind the knees. The radiologists, blind to the positioning, found an increase in lordosis of +4° when the support was in place.

View larger version (113K): [in a new window]   Figure 2. A 53-year-old man with chronic lumbar disc degeneration and previous surgery at L5/S1. Note the almost identical lordosis (a) without and (b) with a supportive cushion. The reduction in lordosis was assessed at-3°.