Range of motion caused by design of the total hip prosthesis

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Herrlin [m-K. Selvik-G. Pettersson-H. Lidgren-L. Department of Diagnostic Radiology, University Hospital, Lund, Acta-Radiol. 1988 Nov-Dec. 29(6). P 701-4. In a clinical material of [1mtotal hip [m prostheses, a study was performed of the range of femoral motion until impingement occurred between the neck of the femoral stem and the rim of the acetabular socket. The results were compared with the physiologic range of motion, and the clinically relevant motion restriction was measured. Restriction was most common in flexion. There was a correlation between the prosthetic design and the restriction due to impingement. Author-abstract.