Hypertrophic changes in the suprasupinatus tendon, subacromial bursa and long head of the biceps tendon in the elderly: an ultrasonographic study

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  • Ohya Nobuhisa
    Department of Physical Therapy, Rehabilitation Science, Shonan University of Medical Sciences Department of Physical Therapy, Graduate School of Human Health Sciences, Tokyo Metropolitan University
  • Yamada Takumi
    Department of Physical Therapy, Graduate School of Human Health Sciences, Tokyo Metropolitan University

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Other Title
  • 高齢者での棘上筋腱，肩峰下滑液包と上腕二頭筋長頭腱の肥厚変化─超音波検査を用いて─
  • 高齢者での棘上筋腱,肩峰下滑液包と上腕二頭筋長頭腱の肥厚変化 : 超音波検査を用いて
  • コウレイシャ デ ノ キョクジョウキンケン,カタサキ カカツエキ ホウ ト ジョウ ワン ニトウキンチョウトウケン ノ ヒコウ ヘンカ : チョウオンパ ケンサ オ モチイテ

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Purpose We aimed to measure the thickness and reliability of soft tissue surrounding the shoulder joint and using ultrasonography in the elderly compared to young adults. Subjects and Methods 11 each of the elderly and young adults were recruited in this study. The thickness of supraspinatus tendon （SST）, subacromial bursa （SAB） and long head of the biceps tendon （BT） were measured using ultrasound. Intra-rater reliability of ultrasound measurements were evaluated by calculating the intraclass correlation coefficient （ICC）. Bland-Altman method and standard error of measurement （SEM） was used to evaluate systematic bias of repeated measurements. The statistic difference in the measurements of tissue thickness between the elderly and young adults was analysed with two independent groups t-test. Results and Discussion ICCs for overall measurements were SST; 0.91, SAB; 0.82, BT; 0.90 in young adults and SST; 0.94, SAB; 0.87, BT; 0.87 in the elderly, SEMs were small and there was no systematic bias across all outcomes for repeated measurements. The measurements of both SST and BT in the elderly showed significantly greater thickness than those in young adults.

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