Birmingham Hip Resurfacing - Literature Review
Additional Data Sources Demographic information for the Worldwide/Other Cohort included gender, age, diagnosis, BMI, baseline OSHIP scores. The study cohort demography was similar in the Worldwide/Other Cohort and the X-Ray / Oswestry combined cohort, with the mean age of 53.0 years in the X-Ray/Oswestry combined cohort and 52.5 years in the Worldwide/Other Cohort. The diagnostic indications were somewhat different between cohorts: OA (78% X-Ray / Oswestry combined cohort vs. 90.8% Worldwide/Other Cohort). A comparison of the revisions and survivorship estimates for the X-ray/Oswestry combined cohort versus the Worldwide/Other Cohort was provided. The primary reason for revision in the Worldwide/Other Cohort was a fracture in 34 cases (1.0%), loosening in 26 cases (0.8%), infection in 7 cases, AVN in 5 cases, dislocation in 5 cases, miscellaneous device failures in 5 cases, pain in 3 cases, and unknown in 3 cases (Table 23).
* The number of procedures is the number of hips that were surviving at the end of the previous year based on the survival analysis. Note that for the Survivorship data the “year 1” data is starting from day 1 and the “year 2” data is starting from day 366, etc. The Worldwide/Other Cohort patients had slightly lower OSHIP scores at all time points (Table 24).
2/4/2007 OUR
SERVICES | PATIENT EDUCATION
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