{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,28]],"date-time":"2026-04-28T14:39:10Z","timestamp":1777387150578,"version":"3.51.4"},"reference-count":16,"publisher":"SAGE Publications","issue":"1","license":[{"start":{"date-parts":[[1986,1,1]],"date-time":"1986-01-01T00:00:00Z","timestamp":504921600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Am J Sports Med"],"published-print":{"date-parts":[[1986,1]]},"abstract":"<jats:p>Unrecognized flexion injuries of the cervical spine may lead to late instability and neurologic damage. These hidden flexion injuries may be from acute or chronic traumatic episodes. Cervical spine instability was seen in an amateur high jumper as a result of chronic repet itive flexion loading of her cervical spine due to incorrect landing technique. The instability from these types of flexion injuries is generally unrecognized on a routine lateral radiograph. The presence of slight anterior sub luxation, simple compression fractures, or subtle ky photic angulation at one cervical level should alert the physician to this diagnosis. Flexion extension views are useful to demonstrate this instability. Occupations and sports which involve repetitive flexion stress to the cervical spine are at risk for this type of late instability. Therefore, in high jumping careful attention to safe techniques of landing is of utmost importance.<\/jats:p>","DOI":"10.1177\/036354658601400117","type":"journal-article","created":{"date-parts":[[2007,6,21]],"date-time":"2007-06-21T20:46:52Z","timestamp":1182458812000},"page":"92-95","source":"Crossref","is-referenced-by-count":12,"title":["Chronic repetitive unrecognized flexion injury of the cervical spine (high jumper's neck)"],"prefix":"10.1177","volume":"14","author":[{"given":"D.","family":"Paley","sequence":"first","affiliation":[{"name":"Division of Orthopedic Surgery, The Hospital for Sick Children, Toronto, Ontario, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"R.","family":"Gillespie","sequence":"additional","affiliation":[{"name":"Division of Orthopedic Surgery, The Hospital for Sick Children, Toronto, Ontario, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[1986,1,1]]},"reference":[{"key":"atypb1","doi-asserted-by":"publisher","DOI":"10.1038\/sc.1969.31"},{"key":"atypb2","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.58B3.956248"},{"key":"atypb3","doi-asserted-by":"publisher","DOI":"10.1007\/BF00357896"},{"key":"atypb4","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.2.5596.16"},{"key":"atypb5","doi-asserted-by":"publisher","DOI":"10.1016\/0090-3019(82)90116-1"},{"key":"atypb6","doi-asserted-by":"publisher","DOI":"10.1097\/00007632-198310000-00002"},{"key":"atypb7","doi-asserted-by":"publisher","DOI":"10.1097\/00007632-198209000-00018"},{"key":"atypb8","unstructured":"Penning L. Non-pathological and pathologic relationships between the lower cervical vertebrae Am J Roentgenol 91 1036, 1964"},{"key":"atypb9","doi-asserted-by":"crossref","unstructured":"Roaf R. Study of the mechanics of spinal injuries J Bone Joint Surg 42B 810-832,1960","DOI":"10.1302\/0301-620X.42B4.810"},{"key":"atypb10","doi-asserted-by":"crossref","unstructured":"Rockett FX Observations on the \"burner\" Traumatic cervical radiculopathy Clin Orthop 164 18-19, 1982","DOI":"10.1097\/00003086-198204000-00006"},{"key":"atypb11","doi-asserted-by":"publisher","DOI":"10.1038\/sc.1978.15"},{"key":"atypb12","doi-asserted-by":"publisher","DOI":"10.1136\/bjsm.16.2.80"},{"key":"atypb13","doi-asserted-by":"crossref","unstructured":"Webb JK, Broughton Rbk, McSweeney T., et al Hidden flexion injury of the cervical spine J Bone Joint Surg 58B 323-327, 1976","DOI":"10.1302\/0301-620X.58B3.956249"},{"key":"atypb14","doi-asserted-by":"crossref","unstructured":"White AA, Johnson RM, Panjabi MM, et al Biomedical analysis of clinical stability in the cervical spine Clin Orthop 100. 85-96, 1975","DOI":"10.1097\/00003086-197506000-00011"},{"key":"atypb15","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.2.6154.1747"},{"key":"atypb16","doi-asserted-by":"publisher","DOI":"10.1038\/sc.1977.19"}],"container-title":["The American Journal of Sports Medicine"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/036354658601400117","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/036354658601400117","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,28]],"date-time":"2026-04-28T09:38:03Z","timestamp":1777369083000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/036354658601400117"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1986,1]]},"references-count":16,"journal-issue":{"issue":"1","published-print":{"date-parts":[[1986,1]]}},"alternative-id":["10.1177\/036354658601400117"],"URL":"https:\/\/doi.org\/10.1177\/036354658601400117","relation":{},"ISSN":["0363-5465","1552-3365"],"issn-type":[{"value":"0363-5465","type":"print"},{"value":"1552-3365","type":"electronic"}],"subject":[],"published":{"date-parts":[[1986,1]]}}}