Summary
Statistical methods were used to calculate the possible observer error in measuring cup migration in bipolar hip arthroplasty from follow-up radiographs. Finding the “tolerance limits” by such methods helped in assigning the true significance of any observed change.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Bland M (1987) An introduction to medical statistics. Oxford University Press, Oxford, p 276
Carman DL, Browne RH, Birch JG (1990) Measurement of scoliosis and kyphosis radiographs. Intraobserver and interobserver variation. J Bone Joint Surg [Am] 72:328–333
Cowell HR (1990) Radiographic measurements and clinical decisions. J Bone Joint Surg [Am] 72:319
Morrissy RT, Goldsmith GS, Hall EC, Kehl D, Cowie GH (1990) Measurement of the Cobb angle on radiographs of patients who have scoliosis. J Bone Joint Surg [Am] 72:320–327
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Middha, V.P., Singhal, K. Radiographic assessment of cup migration in bipolar hip arthroplasty: intra-observer and interobserver errors and tolerance limits. Arch Orthop Trauma Surg 111, 230–231 (1992). https://doi.org/10.1007/BF00571484
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00571484