Abstract | BACKGROUND: METHODS: Patients scheduled for unilateral primary TKA were consecutively included, the serial changes of the numerical rating scale (NRS) at rest (NRSR) and at walking (NRSW), serum inflammatory cytokines and muscle damage markers were assessed before surgery (T0) and at postoperative day 1, 2, 3 and 5 (T1-T4, respectively); while pain disability questionnaire ( PDQ) and synovial fluid inflammatory cytokines were evaluated at T0. The correlations between inflammatory cytokines, muscle damage markers and pain scores were examined, and Bonferroni correction was applied for multiple comparisons. RESULTS: Ninety six patients were included for serum markers and pain evaluations at T0-T4, while 54 (56.25%) for synovial fluid cytokines at T0. The NRSR at T1 and T2 were positively correlated with preoperative NRSW, while the NRSW at T1 to T4 were positively correlated with preoperative NRSR, NRSW and PDQ (all p < 0.05). The NRSR was positively correlated with serum PGE2, IL-6, and CK at T1; the NRSW was positively correlated with serum CRP at T1, with PGE2 and IL-6 at T1 to T3, with CK at T2 and T4, and with Mb and LDH at T1 to T4 (all p < 0.003). Meanwhile, positive correlations were observed between preoperative NRSW and synovial fluid PGE2, IL-6, IL-8, or TNF-α, as well as between PDQ and PGE2 (all p < 0.003), but no associations between postoperative pain scores and preoperative synovial fluid cytokines was found (all p ≥ 0.003). Additionally, the NRSR at T1 and T2, and NRSW at T1 to T4 were positively correlated with body mass index (all p < 0.05). CONCLUSIONS:
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Authors | Hai-Bo Si, Ti-Min Yang, Yi Zeng, Zong-Ke Zhou, Fu-Xing Pei, Yan-Rong Lu, Jing-Qiu Cheng, Bin Shen |
Journal | BMC musculoskeletal disorders
(BMC Musculoskelet Disord)
Vol. 18
Issue 1
Pg. 265
(Jun 17 2017)
ISSN: 1471-2474 [Electronic] England |
PMID | 28623906
(Publication Type: Journal Article)
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Chemical References |
- Cytokines
- Inflammation Mediators
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Topics |
- Acute Pain
(diagnosis, metabolism)
- Aged
- Arthroplasty, Replacement, Knee
(adverse effects, trends)
- Cytokines
(metabolism)
- Female
- Humans
- Inflammation Mediators
(metabolism)
- Male
- Middle Aged
- Muscle, Skeletal
(metabolism, pathology)
- Pain Measurement
(methods)
- Pain, Postoperative
(diagnosis, metabolism)
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