Person: ALIYEV, ORKHAN
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- PublicationOpen AccessSonication of explants enhances the diagnostic accuracy of synovial fluid and tissue cultures and can help determine the appropriate antibiotic therapy for prosthetic joint infections.(2022-01-24T00:00:00Z) ALIYEV, ORKHAN; YILDIZ, FATİH; KAYA, HAKAN BATUHAN; Aghazada, AGHAMAZAHIR; SÜMBÜL, BİLGE; Citak, Mustafa; TUNCAY, İBRAHİM; ALIYEV, ORKHAN; YILDIZ, FATİH; KAYA, HAKAN BATUHAN; AGHAZADAA, AGHAMAZAHIR; SÜMBÜL, BİLGE; TUNCAY, İBRAHİMPurposes This study aimed to evaluate the sensitivity and specificity of the sonication cultures according to the International Consensus Meeting 2018 criteria and to evaluate the effect of sonication on the antibiotic treatment of patients.
- PublicationOpen AccessOnlay fibula autografting technique and its comparison with cortical allograft for the reconstruction of periprosthetic bone defects around the femur(2020-11-01T00:00:00Z) TUNCAY, İBRAHİM; Tozun, Remzi; ALIYEV, ORKHAN; Dikmen, Goksel; UZER, GÖKÇER; ÖZDEN, Vahit Emre; YILDIZ, FATİH; TUNCAY, İBRAHİM; ALIYEV, ORKHAN; UZER, GÖKÇER; YILDIZ, FATİHBackground Bone defect around the femur related to revisions or periprosthetic fractures (PFF) is an issue. We present a bone defect reconstruction technique in femoral revisions and/or PFF using fibula autograft and compared our radiological and clinical results to that of allograft. Methods A total of 53 patients who underwent revision hip arthroplasty and/or PFF fixation with the use of cortical fibula autograft (FG group) or cortical allograft (CG group) were evaluated. After exclusions, 20 patients who had minimum two years of follow-up were investigated for each group, for their radiological and clinical outcomes. Results In FG and CG groups, the median ages were 69.5(44-90) and 62(38-88) years, follow-ups were 59(28-72) and 120(48-216) months, defect lengths were seven (1-10) and ten (1-17) cm, and grafts lengths were 16.5(10-30) and 20(12-37) cm, respectively. The rate of graft incorporation was 90% in each group and median time to incorporations were seven (4-12) and 12(6-24) months (p < 0.001), and graft resorption (moderate and severe) rates were 10% and 25% (p = 0.41), respectively. Median Harris Hip (77.6 vs 78.0), WOMAC (23.2 vs 22), SF-12 physical (50.0 vs 46.1), and SF-12 mental (53.8 vs 52.5) scores were similar between the groups, respectively. Kaplan-Meier survivorship analyses revealed an estimated mean survival of 100% at six years in FG group and 90% at 14 years in CG group. Conclusion In the reconstruction of periprosthetic bone defects after femoral revision or PPF, onlay cortical fibula autografts provide comparable clinical and radiological outcomes to allografts. Its incorporation is faster, it is cost-effective and easy to obtain without apparent morbidity.
- PublicationMetadata onlyComparison of tapered-wedge short and standard-length femoral stems in single-stage bilateral direct anterior total hip arthroplasty(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, FATİHPurpose 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.
- PublicationMetadata onlyComparison of the Functional and Radiological Outcomes of Single- and Two-Stage Bilateral Open Wedge High Tibial Osteotomy Single-Stage and Two-Staged Bilateral Open Wedge High Tibial Osteotomy(2021-11-01T00:00:00Z) UÇAN, VAHDET; ALIYEV, ORKHAN; DEMİRKIRAN, CEMİL BURAK; YILDIZ, FATİH; ELMALI, NURZAT; UZER, GÖKÇER; UÇAN, VAHDET; ALIYEV, ORKHAN; DEMİRKIRAN, CEMİL BURAK; YILDIZ, FATİH; ELMALI, NURZAT; UZER, GÖKÇERZusammenfassung
- PublicationMetadata onlyDoes performing total joint arthroplasty in the afternoon or evening increase the risk of prosthetic joint infection?(2020-11-01T00:00:00Z) YILDIZ, FATİH; ALIYEV, ORKHAN; ERDEN, TUNAY; GÜNGÖREN, NURDAN; UÇAN, VAHDET; TUNCAY, İBRAHİM; YILDIZ, FATİH; ALIYEV, ORKHAN; ERDEN, TUNAY; GÜNGÖREN, NURDAN; UÇAN, VAHDET; TUNCAY, İBRAHİMPurpose Does performing total joint arthroplasty in the afternoon or evening increase the rate of early prosthetic joint infection and the likelihood of early prosthetic joint infection? Methods We evaluated patients retrospectively, who underwent primary total hip (THA) or knee arthroplasty (TKA) between January 2016 and December 2019, met the inclusion criteria and had at least 90 days of follow-up. Patients were divided into two groups. Group I consisted of patients whose surgeries had been started and finished before 14:00, and group II included patients whose surgeries started after 14:01. All patients were operated after non-septic cases in specific orthopedic operating rooms. Their demographic data and comorbidities were noted. Primary outcome was to compare the risk of PJI between the groups. Results Group I and group II included 2309 and 1881 patients. Total number of patients with the diagnosis of PJI was 58 (1.4%). It was 31 (1.3%) and 27 (1.4%), respectively (p = 0.79). Performing total joint arthroplasty after 14:01 did not increase likelihood of infection (p = 0.83, OR 1.03). Among the parameters, PJI was significantly associated with age (p < 0.01, OR 0.99), smoking status (p < 0.01, OR 0.15) and operating time (p = 0.04, OR 0.99) in TKA and with direct anterior approach (p = 0.02, OR 4.72) in THA. Age (p = 0.06, OR 1.03) was the factor affecting the risk of subsequent PJI after total joint arthroplasty. Conclusion Performing total joint arthroplasty in the afternoon or in the evening, after aseptic cases does not increase the risk of subsequent of PJI.
- PublicationMetadata onlyTwo-surgeon simultaneous bilateral total knee arthroplasty does not provide poor prosthetic alignment A prospective randomized controlled study(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, İBRAHİMPurpose 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.
- PublicationMetadata onlyThe effect of onlay cortical fibula strut grafts on biomechanical features of Vancouver type B1 periprosthetic femoral fractures(2022-05-01T00:00:00Z) ALIYEV, ORKHAN; ERDEN, TUNAY; SARIYILMAZ, KERİM; Bozdağ, Süreyya Ergün; Sünbüloğlu, Emin; TUNCAY, İBRAHİM; YILDIZ, FATİH; ALIYEV, ORKHAN; ERDEN, TUNAY; TUNCAY, İBRAHİM; YILDIZ, FATİHObjective: This study aimed to investigate biomechanically the effects of onlay fibula grafts on Vancouver Type B1 Periprosthetic Femoral Fractures (PPFs).
- PublicationMetadata onlySafety of one-stage bilateral total knee arthroplasty -one surgeon sequential vs. two surgeons simultaneous: a randomized controlled study(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, İBRAHİMPurpose 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).
- PublicationOpen AccessLetter to the editor "Middle trapezius transfer for treatment of irreparable supraspinatus tendon tears-anatomical feasibility study"(2021-04-29T00:00:00Z) Kapicioglu, Mehmet; Aliyev, ORKHAN; Bilsel, Kerem; ALIYEV, ORKHAN
- PublicationOpen AccessReply to Letter to Editor: Safety of one-stage bilateral total knee arthroplasty-one-surgeon sequential vs. two surgeons simultaneous: a randomized controlled study(2020-08-01T00:00:00Z) Gungoren, Nurdan; UZER, GÖKÇER; ALIYEV, ORKHAN; YILDIZ, FATİH; ELMALI, NURZAT; TUNCAY, İBRAHİM; UZER, GÖKÇER; ALIYEV, ORKHAN; YILDIZ, FATİH; GÜNGÖREN, NURDAN; ELMALI, NURZAT; TUNCAY, İBRAHİM