The importance of reaming the posterior femoral cortex before inserting lengthening nails and calculation of the amount of reaming

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dc.authorid0000-0002-5772-5630
dc.authorscopusid6602904476
dc.authorscopusid26967708000
dc.authorscopusid56911998800
dc.authorwosidKarakoyun, Özgür/AAN-9431-2020
dc.authorwosidkarakoyun, ozgur/G-9522-2013
dc.contributor.authorKüçükkaya, Metin
dc.contributor.authorKarakoyun, Özgür
dc.contributor.authorErol, Mehmet Fatih
dc.date.accessioned2022-05-11T14:36:13Z
dc.date.available2022-05-11T14:36:13Z
dc.date.issued2016
dc.departmentFakülteler, Tıp Fakültesi, Cerrahi Tıp Bilimleri Bölümü, Ortopedi ve Travmatoloji Ana Bilim Dalı
dc.description.abstractBackground: Lengthening nails have been used to correct limb length discrepancy caused by different etiologies, as well as for post-traumatic reasons. Two important lengthening nail-related complications are damage to the distraction mechanism and femoral fractures around the nail tip. As a result of the curved anatomy of the femur, straight nails impinge on the anterior cortex. Therefore, proper reshaping of the medullary canal to accommodate straight lengthening nails is crucial for the prevention of this problem. Reaming the dense posterior cortex is important when aiming to insert a lengthening nail without incurring anterior cortex nail tip impingement-related complications. Posterior femoral cortex over-reaming is a solution to this situation. Methods: Sixty patients received lengthening nails during 2008-2013, (ISKD, Fitbone, Precice). Posterior cortex rigid-reaming technique was used successfully in 45 retrograde femoral lengthening cases. The preoperatively planned posterior cortex amount was reamed until the impingement was overcome during the operation under fluoroscopic control for each case. Since the preoperative determination of posterior cortex reaming amount is time consuming and operator dependent, we evaluated the X rays of the patients with computer software and conventional paper-based measurements. The effect of reaming the posterior cortical wall on the inclination of the nail tip to the anterior femoral cortex was detected with measurements on the preoperative and postoperative lateral femoral X-rays by using the CorelDRAW (R) Graphic Suite X6 software package (Corel, Inc., Ottawa, Ontario, Canada) software. On the same software, X-rays and the posterior reaming amount were also calculated. Results: The mean age of the patients was 27 years (11-42), while the mean lengthening was 5.9 cm (2-14). The mean consolidation index was 1.05 (0.75-1.62), and the mean follow-up period was 31 months (range, 18-45 months). The mean distance of the osteotomy site to the intercondylar notch of the femur was 81.2 mm (+/- 16.92). The mean displacement of the nail tip position was 15.42 mm (+/- 4.77) on the measurements on the postoperative X-rays after nail insertion compared to the preoperative simulations on the templates. The mean posterior cortex reaming thickness was 3.68 mm (+/- 1.02). Conclusions: We derived a formula that allows the required amount of optimal posterior cortex reaming to be determined. No impingement-related complications or nail damage were observed.
dc.identifier.doi10.1186/s13018-016-0345-6
dc.identifier.issn1749-799X
dc.identifier.pmid26772540
dc.identifier.scopus2-s2.0-84954405623
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1186/s13018-016-0345-6
dc.identifier.urihttps://hdl.handle.net/20.500.11776/8409
dc.identifier.volume11
dc.identifier.wosWOS:000368597600001
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.institutionauthorKarakoyun, Özgür
dc.institutionauthorErol, Mehmet Fatih
dc.language.isoen
dc.publisherBmc
dc.relation.ispartofJournal of Orthopaedic Surgery and Research
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectLimb lengthening
dc.subjectLengthening nails
dc.subjectPosterior femoral cortex
dc.subjectRigid reamer
dc.subjectReaming
dc.subjectIntramedullary Nail
dc.subjectFitbone
dc.titleThe importance of reaming the posterior femoral cortex before inserting lengthening nails and calculation of the amount of reaming
dc.typeArticle

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