Publications by authors named "Bettina Schroeder"
Background: While a primary goal of anterior cruciate ligament (ACL) reconstruction is to reduce pathologically increased anterior and rotational knee laxity, the relationship between knee laxity after ACL reconstruction and patient-reported knee function remains unclear.
Hypothesis: There would be no significant correlation between the degree of residual anterior and rotational knee laxity and patient-reported outcomes (PROs) 2 years after primary ACL reconstruction.
Study Design: Cross-sectional study; Level of evidence, 3.
Hop tests correlate with IKDC and KOOS at minimum of 2 years after primary ACL reconstruction.
Knee Surg Sports Traumatol Arthrosc
November 2011
Article Synopsis
- The study aimed to determine if single-legged horizontal hop test ratios are related to patient-reported outcome measures like IKDC, KOOS, and Marx activity levels in patients two years post-ACL reconstruction.
- Results showed a moderate correlation between the triple-hop ratio and some IKDC and KOOS scores, but weaker correlations for single-hop and timed hops; no significant links were found for the Marx activity level.
- Despite these correlations, multivariable modeling revealed that hop test results explain less than 25% of the variability in outcome scores, suggesting that both patient-reported tools and hop tests provide valuable but distinct information about physical function.
Improvements of ceramic components and design changes have reduced failure rates over the past 30 years in total hip arthroplasty. We present a series of n = 11 cases with ceramic failure out of n = 113 implantations, from which n = 66 were ceramic-on-ceramic (n = 50 with ceramic insert with sandwich in polyethylene and n = 16 with directly fixed ceramic inlay) and n = 47 ceramic on polyethylene bearings, between 1999 and 2001 after introduction of a new implantation system to the market. The overall fracture rate of ceramic for the whole series (n = 113) was 9.
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