Background: We found no information in the literature regarding the
relationship between patient and physician-derived outcome assessments with a
shoulder questionnaire. In this study, we examined a group of patients who
were assessed with patient and physician-administered questionnaires following
shoulder arthroplasty.
Methods: From August 2003 to February 2004, sixty-seven consecutive
patients who had been followed for a minimum of six months after shoulder
arthroplasty were evaluated with a self-administered and an identical
physician-directed shoulder questionnaire that assessed clinical and
functional outcomes at the time of routine follow-up. An assessment of the
agreement between physicians and patients as well as the factors that affected
agreement was performed.
Results: The intraclass correlation indicated almost perfect
physician-patient agreement (>0.80) on items related to overall pain, pain
at night, pain with activity, stability, and active elevation and substantial
agreement (intraclass correlation, 0.66 and 0.69) between the physician and
patient assessments of pain without activity and strength. While the
differences were small, on the average physician ratings for pain were lower
(indicating less pain) than patient ratings for pain, physicians rated
stability and strength as being closer to normal, and they reported less
active elevation. There was substantial agreement between the physician and
patient assessments of outcome with the modified Neer system (intraclass
correlation = 0.75), with 87% agreement if excellent and satisfactory outcomes
were combined.
Conclusions: A patient-derived questionnaire can provide a high
level of agreement with surgeon assessments of outcome following shoulder
surgery. Patient-administered methods should continue to be evaluated as a
means of assessment of these patients.