Morphometry of thenar muscles by water bath ultrasonography in trapeziometacarpal osteoarthritis: intra- and inter-rater reliability

Karademir F., AYHAN KURU Ç., ARIN BAL G., Soylu R.

JOURNAL OF HAND SURGERY-EUROPEAN VOLUME, vol.48, pp.115-122, 2023 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 48
  • Publication Date: 2023
  • Doi Number: 10.1177/17531934221130669
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, EMBASE, MEDLINE
  • Page Numbers: pp.115-122
  • Keywords: Ultrasonography, ultrasound, water bath technique, trapeziometacarpal osteoarthritis, thumb, carpometacarpal joint, thenar muscles, morphometry, muscle thickness, cross-sectional area, CROSS-SECTIONAL AREA, QUADRICEPS WEAKNESS, KNEE OSTEOARTHRITIS, ULTRASOUND, STRENGTH, PAIN, SIZE, ATROPHY, HIP
  • Hacettepe University Affiliated: Yes


We studied the intra- and inter-rater reliability of muscle thickness and cross-sectional area measurements of thenar muscles with a water bath ultrasonography technique in eight healthy volunteers and 16 patients with trapeziometacarpal osteoarthritis. Thickness and cross-sectional area of the opponens pollicis, abductor pollicis brevis, flexor pollicis brevis, first dorsal interosseous and adductor pollicis muscle were measured. The results showed changes in the morphometric properties of the thenar muscles in patients with trapeziometacarpal osteoarthritis (TMC OA) compared with the healthy volunteers. In the dominant-sided patients (n = 14), there were lower cross-sectional area values for the abductor pollicis brevis and opponens pollicis muscles. In the non-dominant-sided patients (n = 10), there were lower cross-sectional area values for the abductor pollicis brevis and flexor pollicis brevis and lower muscle thickness of the abductor pollicis brevis. The water bath ultrasonography technique could be used to diagnose and treat diseases where changes in thenar muscle thickness and cross-sectional area can be expected.