Psychometric Comparison of the PROMIS Physical Function CAT With the FAAM and FFI for Measuring Patient-Reported Outcomes

Abstract

Level I, prospective comparative outcome study.

Evaluating instrument responsiveness in joint function: The HOOS JR, the KOOS JR, and the PROMIS PF CAT

“…Though both instruments (HOOS JR and KOOS JR) have demonstrated high responsiveness, we were also able to identify improved responsiveness with the PROMIS PF CAT. These findings are consistent with a previous report in the foot and ankle population when comparing the PF CAT to the Foot and Ankle Ability Measure—activity of daily living and the Foot Function Index 5‐point verbal rating scale . The results of these studies represent a novel finding, as the data have shown that a non‐joint specific physical function survey can show high responsiveness to the intervention of multiple lower extremity procedures, including joint replacement of the hip and knee.…”

“…Using different analytical approaches, we were able to calculate different responsiveness indices for each instrument. Our findings support other studies demonstrating high responsiveness of the PF CAT alongside other legacy instruments . The HOOS JR, KOOS JR, and PROMIS PF are useful clinical instruments for assessing treatment change and may be selected as relevant to the specific needs and conditions of the adult joint reconstruction patient population.…”

“…This study represents an important step forward in our understanding of the use of PROs in adult reconstruction patients. With this work, along with other similar studies in lower extremity populations, it is plausible that we may find a way of incorporating advanced PRO tools, using CAT, that are also more generalized and still quite sensitive and responsive to patients undergoing very specific interventions. Thus, the use of a different survey for every different joint or surgical intervention in the human body may become obsolete as we begin to move forward with more globalized, low burden, but highly responsive questionnaires that could be used across multiple medical subspecialties and patient types.…”

“…These findings are consistent with a previous report in the foot and ankle population when comparing the PF CAT to the Foot and Ankle Ability Measure-activity of daily living and the Foot Function Index 5-point verbal rating scale. 51 The results of these studies represent a novel finding, as the data have shown that a non-joint specific physical function survey can show high responsiveness to the intervention of multiple lower extremity procedures, including joint replacement of the hip and knee. This study represents an important step forward in our understanding of the use of PROs in adult reconstruction patients.…”

“…Our findings support other studies demonstrating high responsiveness of the PF CAT alongside other legacy instruments. 51 The HOOS JR, KOOS JR, and PROMIS PF are useful clinical instruments for assessing treatment change and may be selected as relevant to the specific needs and conditions of the adult joint reconstruction patient population. These findings should be used in conjunction with other responsiveness literature in order for researchers and clinicians to make informed decisions through enhanced interpretation and knowledge of these outcome measures.…”