ObjectiveObesity is one of the most challenging diseases inorthopedic surgery which directly affects the clinicalresults of the operations. Many studies in the literaturedemonstrated the effects of obesity on orthopedicsurgery. Anterior cruciate ligament (ACL) ruptureis commonly seen in young and active individualsand generally treated surgically. In this study, wehad the intention to investigate the effect of obesityon the clinical results of anterior cruciate ligamentreconstruction.Material and Methods180 patients were retrospectively evaluated whomoperated between September 2012 - June 2016. Thepatients are divided into 2 groups according to theirbody mass index (BMI). All patients were operatedon in a single center and by a single senior surgeon.BMI30 kg/m2 patients formed the Group 2 (n=67).Age, gender, BMI of the patients, waiting time for theoperation, preoperative and postoperative Lysholmand modified Cincinnati scores were comparedbetween these two groups.A p-value less than 0.05(typically ≤ 0.05) is statistically significant.ResultsThere was no significant difference between thegroups in terms of complication, follow-up periods,waiting time before operation, and pre-op and postopLysholm scores, and post-op modified Cincinnatiscores. A significant difference has been foundbetween the groups in pre-op modified Cincinnatiscores.ConclusionACL reconstruction surgery has similar results in theobese population compared to the normal weightpopulation in terms of functional further studies andother parameters are needed to verify these results.AmaçObezite, ortopedik cerrahide postoperatif klinik sonuçlaraetki eden bir klinik antitedir. Literatürdeki birçokçalışma obezitenin ortopedik cerrahi üzerindeki etkileriniortaya koymuştur. Ön çapraz bağ (ÖÇB) yırtılmasıgenellikle genç ve aktif bireylerde görülür ve genelliklecerrahi olarak tedavi edilir. Bu çalışmada obeziteninön çapraz bağ rekonstrüksiyonunun klinik sonuçlarıüzerindeki etkisini araştırmak istedik.Gereç ve YöntemEylül 2012-Haziran 2016 yılları arasında opere edilen,180 hasta retrospektif olarak değerlendirildi. Hastalarvücut kitle indekslerine (VKİ) göre 2 gruba ayrıldı. Tümhastalar tek bir merkezde ve tek bir cerrah tarafındanameliyat edildi. VKİ