Shoulder outcome scoring systems have substantial ceiling effects 2  years after arthroscopic rotator cuff repair

ConclusionThe SST, ASES score, and UCLA scale evaluated at 2  years postoperatively have substantial ceiling effects showing that the proportion of patients with the maximum possible score is>  20%, and the standardised distance is<  1.0. Researchers should be aware of possible biases due to ceiling effects when interpreting the results of studies investigating the surgical outcomes of arthroscopic rotator cuff repair. It could increase the likelihood of a type II error.Level of EvidenceIV.
Source: Knee Surgery, Sports Traumatology, Arthroscopy - Category: Orthopaedics Source Type: research