{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,25]],"date-time":"2026-06-25T12:53:01Z","timestamp":1782391981761,"version":"3.54.5"},"reference-count":34,"publisher":"SAGE Publications","issue":"4","license":[{"start":{"date-parts":[[2026,2,23]],"date-time":"2026-02-23T00:00:00Z","timestamp":1771804800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Journal of Back and Musculoskeletal Rehabilitation"],"published-print":{"date-parts":[[2026,7]]},"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Sacroiliac joint dysfunction (SIJD) is a common cause of low back pain, yet no single clinical test is definitive. Diagnostic sacroiliac joint (SIJ) block is widely used, but the diagnostic value of sustained versus immediate pain relief remains unclear.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>To compare the diagnostic accuracy of SIJ block immediately and 1 week after injection in patients with suspected SIJD and to determine the incidence of concurrent conditions influencing the final diagnosis.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>We retrospectively reviewed 168 outpatients with low back pain and SIJ score \u2265 4 who received ultrasound-guided SIJ block using 2.5\u2005mL of 1% lidocaine between 2019 and 2024. Pain relief was evaluated using the Pain Relief Scale immediately and 1 week post-injection. In patients without sustained block effects, additional imaging and selective blocks were performed. Diagnostic accuracy (sensitivity, specificity, and predictive value) was calculated at each time point.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>An immediate block effect was observed in 92.3% of patients; however, only 75.0% reported sustained relief at 1 week. Overall, 75.6% were diagnosed with SIJD alone, whereas 18.7% had SIJD concurrent with another condition. Immediate effect showed high sensitivity (0.99) but low specificity (0.30), whereas 1-week effect maintained high sensitivity (0.97) and significantly higher specificity (0.93).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>The diagnostic utility of the SIJ block significantly improves when the effect is sustained 1 week after injection, as it excludes other etiologies. Immediate relief alone may be misleading, particularly in secondary SIJD. Notably, 1-week follow-up after SIJ block improved diagnostic accuracy and guided appropriate management.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/10538127261424316","type":"journal-article","created":{"date-parts":[[2026,2,23]],"date-time":"2026-02-23T17:31:52Z","timestamp":1771867912000},"page":"1401-1407","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["Diagnostic value of sustained sacroiliac joint block effect in identifying sacroiliac joint dysfunction: A retrospective cohort study"],"prefix":"10.1177","volume":"39","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4855-3283","authenticated-orcid":false,"given":"Ryota","family":"Kimura","sequence":"first","affiliation":[{"name":"Department of Orthopedic Surgery, Akita University Graduate School of Medicine, Akita, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7008-675X","authenticated-orcid":false,"given":"Yuji","family":"Kasukawa","sequence":"additional","affiliation":[{"name":"Division of Rehabilitation Medicine, Akita University Hospital, Akita, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Daisuke","family":"Kudo","sequence":"additional","affiliation":[{"name":"Division of Rehabilitation Medicine, Akita University Hospital, Akita, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9250-457X","authenticated-orcid":false,"given":"Yuichi","family":"Ono","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery, Akita University Graduate School of Medicine, Akita, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michio","family":"Hongo","sequence":"additional","affiliation":[{"name":"Department of Physical Therapy, Akita University Graduate School of Health Sciences, Akita, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5175-3350","authenticated-orcid":false,"given":"Naohisa","family":"Miyakoshi","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery, Akita University Graduate School of Medicine, Akita, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2026,2,23]]},"reference":[{"key":"e_1_3_3_2_2","doi-asserted-by":"publisher","DOI":"10.1586\/ern.12.148"},{"key":"e_1_3_3_3_2","first-page":"00","article-title":"Efficacy of radiofrequency as therapy and diagnostic support in the management of musculoskeletal pain: a systematic review and meta-analysis","volume":"12","author":"Far\u00ec G","year":"2022","unstructured":"Far\u00ec G, de Sire A, Fallea C, et al. Efficacy of radiofrequency as therapy and diagnostic support in the management of musculoskeletal pain: a systematic review and meta-analysis. Diagnostics (Basel) 2022; 12: 00. PMID: 35328153.","journal-title":"Diagnostics (Basel)"},{"key":"e_1_3_3_4_2","doi-asserted-by":"publisher","DOI":"10.1111\/papr.12526"},{"key":"e_1_3_3_5_2","doi-asserted-by":"publisher","DOI":"10.3233\/BMR-210310"},{"key":"e_1_3_3_6_2","doi-asserted-by":"publisher","DOI":"10.1097\/PHM.0000000000002558"},{"key":"e_1_3_3_7_2","first-page":"119","article-title":"Low back pain related to a sacral insufficiency fracture: role of paravertebral oxygen-ozone therapy in a paradigmatic case of nociplastic pain","volume":"34","author":"de Sire A","year":"2019","unstructured":"de Sire A, Baricich A, Minetto MA, et al. Low back pain related to a sacral insufficiency fracture: role of paravertebral oxygen-ozone therapy in a paradigmatic case of nociplastic pain. Funct Neurol 2019; 34: 119\u2013122. 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