Browsing by Author "Orman, Osman"

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Changes in Posterior Tibial Slope Angle in Patients Undergoing Open-Wedge High Tibial Osteotomy for Varus Gonarthrosis
(2017) Ozel, Omer; Yucel, Bulent; Mutlu, Serhat; Orman, Osman; Mutlu, Harun; 25763850
In this study, postoperative changes in the posterior tibial slope angle and clinical outcomes following open-wedge high tibial osteotomy were evaluated. This study included 39 knees (18 left, 21 right) of 35 patients (three male, 32 female; median age, 53 years; age range 37-64 years) with symptomatic isolated medial joint osteoarthritis who underwent open-wedge high tibial osteotomy and fixation with a Puddu plate. The patients were clinically assessed according to the Lysholm knee score, a visual analogue pain scale, and a patient satisfaction questionnaire. Radiological assessment was made according to the changes in the posterior tibial slope angle and the correlation between these changes and clinical signs. The median follow-up period was 11 years (range 7-14 years). Significant improvements were observed in the preoperative and postoperative clinical scores of the Lysholm knee scale, visual analogue pain scale, and patient satisfaction questionnaire (p < 0.05). Radiological assessment showed that the posterior tibial slope angle was significantly higher during the postoperative and follow-up periods (p 0.05). There was no correlation between the postoperative Lysholm scores and the increase in the posterior tibial slope angle (p = n.s.). We conclude that both the conventional Puddu plate design and its anteromedial plate placement are what increase the tibial slope after an opening-wedge proximal tibial osteotomy. Therefore, current new plate design may help preserve the posterior tibial slope angle. IV.
Comparison of Anteromedial and Transtibial ACL Reconstruction Using Expandable Fixation
(2017) Ozel, Omer; Yucel, Bulent; Orman, Osman; Demircay, Emre; Mutlu, Serhat; 0000-0002-2753-426X; 0000-0002-9177-2457; 0000-0003-1274-4288; 0000-0002-2062-991X; 28399324; AAG-3009-2020; HKW-6873-2023; AAL-2368-2021; J-9611-2014
The influence of anatomical or nonanatomical femoral tunnel position on tunnel widening and clinical outcomes in patients undergoing anterior cruciate ligament (ACL) reconstruction is not fully understood. This retrospective study examined the influence of tunnel width and placement on anterior knee stability and clinical outcomes after ACL reconstruction using the AperFix System (Cayenne Medical Inc, Scottsdale, Arizona), a direct expandable fixation technique with autologous hamstring grafts. The records of 80 patients (79 men and 1 woman) who underwent ACL reconstruction were evaluated. In 38 patients, anatomical femoral tunnel placement was performed via an accessory medial portal (anteromedial group); in the remaining 42 patients, the femoral tunnel was positioned nonanatomically using a transtibial technique (transtibial group). Mean follow-up was 40.7 months (range, 27-60 months). Postoperative knee kinetics were measured, and clinical outcomes were assessed using International Knee Documentation Committee, Lysholm, and Tegner scores. Femoral tunnel widening was measured by comparing postoperative radiographs with final follow-up radiographs. Femoral tunnel width was significantly greater (P<.001) and anterior knee translation was significantly higher (P=.01) in the transtibial group. Lysholm and Tegner scores were not significantly different (P>.05) between the 2 groups. These findings suggest that femoral tunnel widening is associated with increased anterior joint laxity when a direct fixation technique is used for ACL reconstruction, particularly in nonanatomically positioned femoral tunnels. Anatomical femoral tunnel placement provides better anterior stability and less tunnel widening than transtibial tunnel placement; however, these benefits did not produce a detectable advantage in clinical outcomes measures.
The Effects of Spinopelvic Parameters Such As Lumbar Lordosis and Sacral Slope Angles in the Development of Lumbar Disc Degeneration
(2019) Kırcelli, Atilla; Coven, Ilker; Sen, Pelin; Orman, Osman; 0000-0003-2109-1274; 0000-0002-3888-8960
Objective; Spinopelvic parameters were identified and the association between sagittal spinopelvic alignment and lumbar disc diseases have been reported in several studies, The purpose of this study was to evaluate the spinopelvic parameters such as lumbar lordosis (LL) and sacral slope (SS) in normal healthy lumbar spine versus degenerative disc disease group. Methods: We retrospectively identified 140 patients suffered from back pain with/without radiculopathy between 2016-2017 in this study. Of these 70 patients had normal disc morphology and they constituted called control group, and the other 70 patients had lumbar degenerative disc disease and they constituted called disease patient group. All patients' LL, and SS angles were measured on T2 weighted sagittal magnetic resonance imaging and degenerated disc levels were noted. We also recorded LL-SS ratio which was calculated by dividing of LL by SS value in both groups. We compared these parameters between two groups. Results: In disease patient group there was a positive correlation (r = 0.947, p<0.0001) between the LL and SS angles. The mean LL was 45,14 +/- 11.01 and the mean SS angle was 35.91 +/- 7.67 degrees and there was weak negative correlation between degenerated disc level and SS angle (r=-0.243, p=0.042). LL-SS ratio was 1.25 +/- 0.1. In control group, there was a positive correlation (r=0.927, p<0.0001) between the LL and SS angles. The mean LL was 49.46 +/- 9.07 and the mean SS was 38.45 +/- 6.91 degrees. LL-SS ratio was 1.28 +/- 0.93. There were significant differences in LL, SS and LL-SS ratio between groups (p=0.013, p=0.041, and p=(1.025, respectively). Conclusion: LL, SS angles and LL-SS ratio which are easily measured at in neurosurgery, orthopaedics and physical therapy practice, m the predictor of disc degeneration.