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Foot Ankle Int. 2019 Feb;40(2):139-144. doi: 10.1177/1071100718803314. Epub 2018 Oct 4.

PROMIS Pain Interference Is Superior vs Numeric Pain Rating Scale for Pain Assessment in Foot and Ankle Patients.

Author information

1
1 Department of Orthopaedic Surgery, University of Rochester, Rochester, NY, USA.
2
2 George Fox University, Newberg, OR, USA.

Abstract

BACKGROUND::

The Numeric Pain Rating Scale (NPRS) is a popular method to assess pain. Recently, the Patient-Reported Outcomes Measurement Information System (PROMIS) has been suggested to be more accurate in measuring pain. This study aimed to compare NPRS and PROMIS Pain Interference (PI) scores in a population of foot and ankle patients to determine which method demonstrated a stronger correlation with preoperative and postoperative function, as measured by PROMIS Physical Function (PF).

METHODS::

Prospective PROMIS PF and PI and NPRS data were obtained for 8 common elective foot and ankle surgical procedures. Data were collected preoperatively and postoperatively at a follow-up visit at least 6 months after surgery. Spearman correlation coefficients were calculated to determine the relationship among NPRS (0-10) and PROMIS domains (PI, PF) pre- and postoperatively. A total of 500 patients fit our inclusion criteria.

RESULTS::

PROMIS PF demonstrated a stronger correlation to PROMIS PI in both the pre- and postoperative settings (preoperative: ρ = -0.66; postoperative: ρ = -0.69) compared with the NPRS (preoperative: ρ = -0.32; postoperative:ρ = -0.33). Similar results were found when data were grouped by Current Procedural Terminology (CPT) code.

CONCLUSION::

PROMIS PI was a superior tool to gauge a patient's preoperative level of pain and functional ability. This information may assist surgeons and patients in setting postoperative functional expectations and pain management.

LEVEL OF EVIDENCE::

Level II, prognostic.

KEYWORDS:

PROMIS; pain; patient-reported outcomes; surgical expectations; value-based healthcare

PMID:
30282475
DOI:
10.1177/1071100718803314

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