{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,27]],"date-time":"2026-08-27T16:17:06Z","timestamp":1787847426676,"version":"build-2784847793"},"reference-count":34,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"2","content-domain":{"domain":["lww.com","ovid.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2021,4]]},"abstract":"<jats:sec>\n                    <jats:title>Study Design:<\/jats:title>\n                    <jats:p>Prospective case series, therapeutic Level IV.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Objectives:<\/jats:title>\n                    <jats:p>Functional and radiographic outcome evaluation of patients with spondylolysis treated with pars interarticularis defect repair with iliac bone grafting and application of a construct consisting of a pair of polyaxial pedicle screws connected by a U-shaped rod passing beneath the spinous process.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>Twenty-five patients (27 operated lumbar levels) with an average of 20 months of follow-up (range 12\u201324 m) with spondylolysis who met our inclusion criteria were treated with the above-mentioned technique. Functional assessment was by the Visual Analog Score (VAS) for low back pain (LBP) and Oswestry Disability Index (ODI). Fusion was confirmed with plain x-rays and when indicated with computed tomography scan. Return to activities of daily living (ADL) was also assessed.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>\n                      There were 16 males (64%) and 9 females (36%), with a mean age of 18 \u00b1 3 years at surgery, with a mean operating time of 79 \u00b1 13 min and a mean blood loss of 186 \u00b1 57 ml. ODI significantly improved from a mean of 63 \u00b1 7 preoperatively to 10 \u00b1 4 at 12 months postoperatively (\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      &lt; 0.001). The mean preoperative LBP VAS score 8 \u00b1 1 showed also a statistically significant decrease of values to 1 \u00b1 1 at 12 months, (\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      &lt; 0.001). At 12 m, all patients returned to unrestricted ADL. Pars healing was present in 19 patients (76%) at 6 months and in all patients at 12 months.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions:<\/jats:title>\n                    <jats:p>Polyaxial pedicular screws with a U-shaped rod offer an effective and reproducible treatment for spondylolysis with an appropriate fusion rate, predictable return to daily activities, and good pain relief in young adults.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.4103\/jcvjs.jcvjs_36_21","type":"journal-article","created":{"date-parts":[[2021,6,9]],"date-time":"2021-06-09T05:46:11Z","timestamp":1623217571000},"page":"170-177","update-policy":"https:\/\/doi.org\/10.1097\/lww.0000000000001000","source":"Crossref","is-referenced-by-count":3,"title":["Repair of spondylolysis using a pedicle screw U-shaped rod construct"],"prefix":"10.4103","volume":"12","author":[{"given":"Ahmed Samir","family":"Barakat","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wessam Samir","family":"Soliman","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Amr Farahat","family":"Elgharabawy","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Khaled","family":"Fawaz","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nader M.","family":"Diab","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wissam Gaber","family":"Alinani","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Akram","family":"Azzam","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ahmed Maher","family":"Sultan","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"276","reference":[{"key":"R1-11-20240904","doi-asserted-by":"crossref","first-page":"726","DOI":"10.5435\/00124635-200612000-00004","article-title":"Back pain in athletes","volume":"14","author":"Lawrence","year":"2006","journal-title":"J Am Acad Orthop Surg"},{"key":"R2-11-20240904","doi-asserted-by":"crossref","first-page":"673","DOI":"10.1097\/00007632-198509000-00014","article-title":"Repair of the defect in spondylolysis or minimal degrees of spondylolisthesis by segmental wire fixation and bone grafting","volume":"10","author":"Bradford","year":"1985","journal-title":"Spine (Phila Pa 1976"},{"key":"R3-11-20240904","doi-asserted-by":"crossref","first-page":"454","DOI":"10.1136\/bjsm.2005.023465","article-title":"The incidence and distribution of stress fractures in elite tennis players","volume":"40","author":"Maquirriain","year":"2006","journal-title":"Br J Sports Med"},{"key":"R4-11-20240904","doi-asserted-by":"crossref","first-page":"1761","DOI":"10.1097\/00007632-199508150-00003","article-title":"The pars defect as a pain source. 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