{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,18]],"date-time":"2026-03-18T20:52:34Z","timestamp":1773867154623,"version":"3.50.1"},"reference-count":20,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["SPI"],"published-print":{"date-parts":[[2007,1]]},"abstract":"<jats:sec>\n<jats:title>Object<\/jats:title>\n<jats:p>The cervical foraminotomy was pioneered in the 1940s to address radicular symptoms via a posterior approach, but the long-term outcome has not been adequately studied.<\/jats:p><\/jats:sec>\n<jats:sec>\n<jats:title>Methods<\/jats:title>\n<jats:p>The authors retrospectively analyzed data obtained from 303 patients (188 male and 115 female, mean age 49.2 years) who had consecutively undergone a single-level posterior foraminotomy for cervical radiculopathy between 1972 and 1992. The median follow-up duration was 7.1 years. The major end point studied was the development of symptomatic adjacent- or same-segment disease. Incidence rates per 1000 person-years were calculated, and the natural history of the disease was predicted using Kaplan\u2013Meier survivorship analysis.<\/jats:p>\n<jats:p>In 15 (4.9%) of 303 patients, symptomatic adjacent-segment disease developed, yielding a rate of 6.4\/1000 person-years at risk. This included nine (2.9%) of 303 patients requiring reoperation, yielding a rate of 3.8\/1000 person-years. Kaplan\u2013Meier survivorship analysis suggested a relatively stable annual 0.7% rate for developing adjacent-segment disease, with a 10-year rate of 6.7%. Ten patients developed same-segment disease, yielding a risk rate of 3.9\/1000 person-years.<\/jats:p>\n<jats:p>Kaplan\u2013Meier survivorship analysis demonstrated a 5- and 10-year risk rate of developing same-segment disease of 3.2 and 5.0%, respectively.<\/jats:p><\/jats:sec>\n<jats:sec>\n<jats:title>Conclusions<\/jats:title>\n<jats:p>Although additional study is needed, analysis of the present data suggests that posterior foraminotomy is associated with a low rate of same- and adjacent-segment disease.<\/jats:p><\/jats:sec>","DOI":"10.3171\/spi.2007.6.1.2","type":"journal-article","created":{"date-parts":[[2008,7,8]],"date-time":"2008-07-08T19:42:14Z","timestamp":1215546134000},"page":"5-9","source":"Crossref","is-referenced-by-count":88,"title":["Same-segment and adjacent-segment disease following posterior cervical foraminotomy"],"prefix":"10.3171","volume":"6","author":[{"given":"Michelle J.","family":"Clarke","sequence":"first","affiliation":[{"name":"Departments of 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