Osteoarthritis and its association with muscle hyperalgesia: an experimental controlled study
Osteoarthritis and its association with muscle hyperalgesia: an experimental controlled study
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DOI:
10.1016/s0304-3959(01)00300-1
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发表时间:
2001-08-01
期刊:
影响因子:
7.4
通讯作者:
Arendt-Nielsen, L
中科院分区:
文献类型:
--
作者:
Bajaj, P;Bajaj, P;Arendt-Nielsen, L
Hypertonic saline effectively excites muscle nociceptors. Muscle hyperalgesia was assessed in osteoarthritis (OA) by intramuscular infusion of 0.5 mi hypertonic saline (6%) into the tibialis anterior muscle in humans. Patients (n = 14) with OA in the lower extremities were compared with an equal number of age- and sex-matched healthy controls. Ten of the 14 OA patients had pain in the knee joint as the most common presenting complaint. Visual analogue scale (VAS) pain intensity and assessment of pain areas were recorded before infusion and immediately, 2, 5, 10 and 20 min after infusion, and then every 10 min, until the pain vanished. The mean pain offset time in OA patients (11.3 +/- 7.9 min) was larger as compared with the control subjects (6.04 +/- 2.1 min) (P = 0.025). OA patients: had increased pain intensity VAS after the infusion in the right leg compared with controls (P