Skin temperature of the shoulder: Circadian rhythms in normal and pathologic shoulders

Naohisa Miyakoshi, Eiji Itoi, Kozo Sato, Koji Suzuki, Hiroshi Matsuura

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)


Orcadian rhythm of the shoulder skin temperature was studied in 21 shoulders of 20 patients with rotator cuff tears (average age, 58 years) and 4 shoulders of 4 patients with rotator cuff tendinitis (average age, 34 years). Fourteen of the 23 uninvolved shoulders with no abnormalities on magnetic resonance imaging were also studied as normal shoulders. With a portable thermometer with the probes attached to the anterior surface of both shoulders, the skin temperature was recorded every 5 minutes from 1:00 PM to 9:00 AM (20 hours). Both the normal and cuff tear shoulders showed a similar circadian rhythm with the temperature at night significantly lower than the temperature during the daytime (P < .0001). On the other hand, the tendinitis shoulders did not show this arcadian rhythm; the temperature did not change significantly through the range of measurement. We conclude that the skin temperature shows a circadian rhythm in normal shoulders, and this rhythm may be affected by certain pathologic conditions of the shoulder.

Original languageEnglish
Pages (from-to)625-628
Number of pages4
JournalJournal of Shoulder and Elbow Surgery
Issue number6
Publication statusPublished - 1998 Jan 1
Externally publishedYes

ASJC Scopus subject areas

  • Surgery
  • Orthopedics and Sports Medicine


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