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Table 1 Characteristics of the included studies (n = 158)

From: A bibliometric analysis of published research employing musculoskeletal imaging modalities to evaluate foot osteoarthritis

Timespan, year   1980 to 2021
Annual percentage growth rate, %   9.6%
Oxford 2011 Levels of Evidence, n (%) Level 2 8 (5.1%)
Level 3 58 (36.7%)
Level 4 92 (58.2%)
Imaging modality used, n (%)a Plain radiography 140 (88.6%)
CT 24 (15.2%)
MRI 14 (8.9%)
USI 4 (2.5%)
Reason for imaging, n (%) Outcome measure 113 (71.5%)
Participant recruitment 9 (5.7%)
Both 36 (22.8%)
Foot joint examined with imaging, n (%)b First metatarsophalangeal joint 64 (40.5%)
Lesser metatarsophalangeal joints 9 (5.7%)
Interphalangeal joints 7 (4.4%)
Subtalar joint 50 (31.6%)
Midfoot joints 82 (51.9%)
Not specified 6 (3.8%)
  1. a24 studies used more than one imaging modality
  2. b39 studies assessed ≥ 2 ft joints