2018-04-01T00:00:00Z, YILDIZ, FATİH, ERDEN, TUNAY, UZER, GÖKÇER, TUNCAY, İBRAHİM, YILDIZ, FATİH, UZER, GÖKÇER, TUNCAY, İBRAHİM

2020-07-01T00:00:00Z, UZER, GÖKÇER, ALIYEV, ORKHAN, YILDIZ, FATİH, ELMALI, NURZAT, TUNCAY, İBRAHİM, UZER, GÖKÇER, ALIYEV, ORKHAN, YILDIZ, FATİH, GÜNGÖREN, NURDAN, ELMALI, NURZAT, TUNCAY, İBRAHİM

Purpose This study aimed to examine the complications by comparing two surgeons simultaneous bilateral total knee arthroplasty (two-surgeon bilateral TKA) to one surgeon sequential bilateral total knee arthroplasty (single-surgeon bilateral TKA).

2017-06-01, ALTINTAŞ, BURAK, YILDIZ, FATİH, UZER, GÖKÇER, KAPICIOĞLU, MEHMET, BİLSEL, İSMAİL KEREM, YILDIZ, FATİH, UZER, GÖKÇER, KAPICIOĞLU, MEHMET, BİLSEL, İSMAIL KEREM

2017-01-01T00:00:00Z, Uzer, GÖKÇER, Yildiz, FATİH, BATAR, Suat, BINLAKSAR, Ruwais, Elmadag, Mehmet, Kus, Gamze, Bilsel, Kerem, UZER, GÖKÇER, YILDIZ, FATİH, ELMADAĞ, NUH MEHMET, BİLSEL, İSMAIL KEREM

Background: Functional outcomes of reverse total shoulder arthroplasty (rTSA) can be improved by fixation of the tuberosities. This study compares clinical and radiologic results of patients with comminuted proximal humeral fractures treated with rTSA, with and without autologous grafting.

2021-08-01T00:00:00Z, UÇAN, VAHDET, EZİCİ, VOLKAN, ALIYEV, ORKHAN, UZER, GÖKÇER, TUNCAY, İBRAHİM, YILDIZ, FATİH, UÇAN, VAHDET, EZİCİ, VOLKAN, ALIYEV, ORKHAN, UZER, GÖKÇER, TUNCAY, İBRAHİM, YILDIZ, FATİH

Purpose This study was performed to compare short and standard-length tapered-wedge-type femoral stems in single-stage bilateral total hip arthroplasty (THA) through a direct anterior approach (DAA). Materials and methods The patients were divided into two groups according to their femoral stem types as short tapered-wedge stem and standard-length tapered-wedge stem groups. Outcome parameters were the surgical time, estimated blood loss (EBL), length of stay (LOS), thigh pain, Harris Hip Score (HHS), and visual analog scale (VAS) score clinically, and canal fill ratio (CFR), coronal plan alignment of the stems, subsidence, and postoperative leg length difference (LLD), radiologically. Results The short-stem group and standard-length-stem group consisted of 20 patients (40 hips, mean age 52.0 +/- 14.1) and 22 patients (44 hips, mean age 49.4 +/- 11.9), respectively. There were no significant differences between the groups in terms of mean surgical times (p = 0.6), EBL (p = 0.2), LOS (p = 0.2), the rate of thigh pain (p = 0.4), improvements in HHS (p = 0.4) and VAS scores (p = 0.6), LLD (p = 0.3), amount of subsidence (p = 0.9), and varus or valgus misalignment (p = 0.7). The CFR at the level of the lesser trochanter was significantly higher in the short-stem group (0.79 +/- 0.1) than the standard-length-stem group (0.73 +/- 0.1) (p < 0.01). Conclusion In single-stage bilateral THA through DAA, short, tapered-wedge femoral stems provide similar radiographic and functional results to standard stems at short-term follow-up.

2016-06-01, Tuncay, Ibrahim, Yildiz, FATİH, Bilsel, Kerem, Uzer, GÖKÇER, Elmadag, Mehmet, Erden, TUNAY, Bozdag, Ergun, TUNCAY, İBRAHİM, YILDIZ, FATİH, BİLSEL, İSMAIL KEREM, UZER, GÖKÇER, ELMADAĞ, NUH MEHMET, ERDEN, TUNAY

Background: We hypothesized that a rectangular cross-sectional femoral stem may produce more initial stability of the transverse subtrochanteric femoral shortening osteotomy rather than a circular cross-sectional stem.

2015-12-01, Elmadag, M., Uzer, GÖKÇER, Yildiz, FATİH, ERDEN, TUNAY, Bilsel, K., Buyukpinarbasili, NUR, USUMEZ, A., BOZDAG, E., SEN, C., ELMADAĞ, NUH MEHMET, UZER, GÖKÇER, YILDIZ, FATİH, ERDEN, TUNAY, BİLSEL, İSMAIL KEREM, BÜYÜKPINARBAŞILI, NUR

This animal study compares different methods of performing an osteotomy, including using an Erbium-doped Yttrium Aluminum Garnet laser, histologically, radiologically and biomechanically. A total of 24 New Zealand rabbits were divided into four groups (Group I: multihole-drilling; Group II: Gigli saw; Group III: electrical saw blade and Group IV: laser). A proximal transverse diaphyseal osteotomy was performed on the right tibias of the rabbits after the application of a circular external fixator. The rabbits were killed six weeks after the procedure, the operated tibias were resected and radiographs taken.

2021-07-01T00:00:00Z, Aghazada, Aghamazahir, ALIYEV, ORKHAN, DEMİRKIRAN, CEMİL BURAK, UZER, GÖKÇER, Citak, Mustafa, TUNCAY, İBRAHİM, YILDIZ, FATİH, ALIYEV, ORKHAN, AGHAZADAA, AGHAMAZAHIR, DEMİRKIRAN, CEMİL BURAK, UZER, GÖKÇER, TUNCAY, İBRAHİM, YILDIZ, FATİH

Purpose Periprosthetic joint infection (PJI) is one of the most dreaded and challenging complications after total joint arthroplasty (TJA). The aim of this study was to evaluate the effect of keeping the dressing without change on the occurrence of PJI in patients undergoing TJA. Methods 4877 Patients with a minimum follow-up of 90 days were included to investigate the effect of dressing on the PJI occurring within 3 months of surgery. Patients were divided into two consecutive groups as the intermittent change of traditional dressing (group 1-before 2019) and keeping dressing for 5 days without change (group 2-after 2019). A backward stepwise logistic regression model was used to estimate independent risk factors for PJI. Results Group 1 and group 2 consisted of 4172 and 705 patients, and the numbers of diagnosed PJI cases in the groups were 40 (1.0%) and 10 (1.4%), respectively (p = 0.1). The backward stepwise logistic regression model analysis revealed that keeping the dressing unchanged and removing it after the first week postoperatively was not an independent risk factor for the occurrence of PJI. Older age, diabetes mellitus and coronary artery diseases were independent risk factors for PJI (p < 0.05). Conclusion Our study results present, that intermittent change of conventional dressing is unnecessary, because it does not decrease the risk of PJI after TJA.

2017-02-01, Yildiz, FATİH, Bilsel, Kerem, PULATKAN, Anil, Uzer, GÖKÇER, Aralasmak, AYŞE, ATAY, Musa, YILDIZ, FATİH, BİLSEL, İSMAIL KEREM, UZER, GÖKÇER, ARALAŞMAK, AYŞE

The physical examination of the shoulder is usually not reliable for the true diagnosis of superior glenoid labrum anterior to posterior (SLAP) lesions. Magnetic resonance imaging (MRI) has been routinely used for the diagnosis. This prospective study investigates the radiological diagnosis of the SLAP lesions and compares accuracy of arthroscopic and MRI classifications.

2021-11-01T00:00:00Z, YILDIZ, FATİH, ALIYEV, ORKHAN, Aghazada, Aghamazahir, UZER, GÖKÇER, TUNCAY, İBRAHİM, YILDIZ, FATİH, ALIYEV, ORKHAN, AGHAZADAA, AGHAMAZAHIR, ELMALI, NURZAT, UZER, GÖKÇER, TUNCAY, İBRAHİM

Purpose Two-surgeon, simultaneous bilateral total knee arthroplasty (TKA) is considered as an unpredictable, complex procedure in terms of its radiographic and functional outcomes because of different surgeons and teams, and too many instruments and hands in a narrow space. We compared radiological and functional results of simultaneous bilateral TKA and single-surgeon sequential bilateral TKA. Methods The 136 participants with a minimum of 24 months follow-up were prospectively randomized into 2 groups: two-surgeon bilateral TKA and single-surgeon bilateral TKA. We prespecified primary outcome of the study as between-group differences in terms of component alignment in the coronal and sagittal planes. Short-term functional outcomes were evaluated prospectively using the Oxford Knee Score (OKS) and Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC). Results Each group consisted of 136 knees of 68 patients. The mean tibial medial angles (TMA) were 89 degrees +/- 3 degrees and 88 degrees +/- 5 degrees in two-surgeons and single surgeon groups, respectively (p = 0.24). Radiological outcomes showed that the mean femoral lateral angles (FLA) were 87.9 +/- 3.5 degrees and 85.84 +/- 3.7 degrees (p = 0.12), posterior tibial slope angles (PTSA) were 8.2 +/- 16.9 degrees and 7.6 +/- 17.8 degrees (p = 0.84), and femoral flexion angles (FFA)were 86.8 +/- 3.8 degrees and 86.3 +/- 3.5 degrees (p = 0.41), anterior femoral offset ratios (AFOR) (%) were 29.5 +/- 11.1 and 27.7 +/- 7.9 (p = 0.31), and posterior femoral offset ratio (PFOR) (%) were 108.41 +/- 31.3 and 108.45 +/- 25.7 (p = 0.98), respectively. Conclusion Two-team simultaneous bilateral TKA is as safe as single stage one-surgeon sequential bilateral TKA in terms of short-term component radiological and the functional outcomes.