PMID- 36071945 OWN - NLM STAT- MEDLINE DCOM- 20220909 LR - 20220922 IS - 1918-1523 (Electronic) IS - 1203-6765 (Print) IS - 1203-6765 (Linking) VI - 2022 DP - 2022 TI - Pain Sensitization and Neuropathic Pain-like Symptoms Associated with Effectiveness of Exercise Therapy in Patients with Hip and Knee Osteoarthritis. PG - 4323045 LID - 10.1155/2022/4323045 [doi] LID - 4323045 AB - Pain sensitization and neuropathic pain-like symptoms are some of the common pain symptoms in patients with lower limbs, including hip and knee, osteoarthritis (HOA/KOA). Exercise therapy has been the first-line treatment; however, the effects differ for each patient. This prospective cohort study investigated the relationship between the effectiveness of exercise therapy and pretreatment characteristics (radiologic severity, pain sensitization, and neuropathic pain-like symptoms) of patients with HOA/KOA. We assessed the pain intensity using a numerical rating scale (NRS) before and after 12 weeks of exercise therapy in patients with HOA/KOA (n = 101). Before treatment, the Kellgren-Lawrence (K-L) grade; minimum joint space width (mJSW); pressure pain threshold (PPT) and temporal summation of pain (TSP) at the affected joint, tibia, and forearm; Central Sensitization Inventory-9; and painDETECT questionnaire (PDQ) were assessed. Cluster analysis was based on the pretreatment NRS and change in NRS with exercise therapy to identify the subgroups of pain reduction. The pretreatment characteristics of each cluster were compared. According to the results of the cluster analyses, patients in cluster 1 had severe pain that did not improve after exercise therapy, patients in cluster 2 had severe pain that improved, and those in cluster 3 had mild pain that improved. The patients in cluster 1 exhibited lower PPT at all measurement sites, higher TSP at the affected joint, and higher PDQ scores than those in other clusters. There was no difference in the K-L grade and mJSW among the clusters. The subgroup with severe pain and pain sensitization or neuropathic pain-like symptoms at pretreatment, even with mild joint deformity, may have difficulty in achieving improvement in pain after 12 weeks of exercise therapy. These findings could be useful for prognosis prediction and for planning exercise therapy and combining with other treatment. CI - Copyright (c) 2022 Takafumi Hattori et al. FAU - Hattori, Takafumi AU - Hattori T AUID- ORCID: 0000-0002-8885-2560 AD - Faculty of Rehabilitation, Kobe Gakuin University Graduate School, Kobe, Hyogo, Japan. AD - Department of Rehabilitation, Maehara Orthopedics Rehabilitation Clinic, Obu, Aichi, Japan. FAU - Shimo, Kazuhiro AU - Shimo K AUID- ORCID: 0000-0002-8575-6186 AD - Department of Physical Therapy, Faculty of Rehabilitation, Kobe Gakuin University, Kobe, Hyogo, Japan. FAU - Niwa, Yuto AU - Niwa Y AUID- ORCID: 0000-0001-9440-1865 AD - Faculty of Rehabilitation, Kobe Gakuin University Graduate School, Kobe, Hyogo, Japan. FAU - Katsura, Yuichi AU - Katsura Y AUID- ORCID: 0000-0003-0449-6034 AD - Faculty of Rehabilitation, Kobe Gakuin University Graduate School, Kobe, Hyogo, Japan. FAU - Tokiwa, Yuji AU - Tokiwa Y AD - Faculty of Rehabilitation, Kobe Gakuin University Graduate School, Kobe, Hyogo, Japan. FAU - Ohga, Satoshi AU - Ohga S AUID- ORCID: 0000-0001-6802-7726 AD - Department of Physical Therapy, Faculty of Rehabilitation, Kobe Gakuin University, Kobe, Hyogo, Japan. FAU - Matsubara, Takako AU - Matsubara T AUID- ORCID: 0000-0002-8849-3596 AD - Faculty of Rehabilitation, Kobe Gakuin University Graduate School, Kobe, Hyogo, Japan. AD - Department of Physical Therapy, Faculty of Rehabilitation, Kobe Gakuin University, Kobe, Hyogo, Japan. LA - eng PT - Journal Article DEP - 20220829 PL - United States TA - Pain Res Manag JT - Pain research & management JID - 9612504 SB - IM MH - Exercise Therapy MH - Humans MH - Knee MH - *Neuralgia/complications/therapy MH - *Osteoarthritis, Hip/complications/therapy MH - *Osteoarthritis, Knee/complications/therapy MH - Prospective Studies PMC - PMC9444422 COIS- The authors declare that they have no conflicts of interest. EDAT- 2022/09/09 06:00 MHDA- 2022/09/11 06:00 PMCR- 2022/08/29 CRDT- 2022/09/08 02:17 PHST- 2022/03/05 00:00 [received] PHST- 2022/07/21 00:00 [revised] PHST- 2022/08/12 00:00 [accepted] PHST- 2022/09/08 02:17 [entrez] PHST- 2022/09/09 06:00 [pubmed] PHST- 2022/09/11 06:00 [medline] PHST- 2022/08/29 00:00 [pmc-release] AID - 10.1155/2022/4323045 [doi] PST - epublish SO - Pain Res Manag. 2022 Aug 29;2022:4323045. doi: 10.1155/2022/4323045. eCollection 2022.