Person: UÇAN, VAHDET
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Publication Metadata only Comparison of 3 Cell-Free Matrix Scaffolds Used to Treat Osteochondral Lesions in a Rabbit Model.(2022-03-30T00:00:00Z) Ucan, Vahdet; Pulatkan, Anil; Yilmaz, Bengi; Tahmasebifar, Aydin; Tok, Olgu Enis; Tuncay, Ibrahim; Elmali, Nurzat; Ozturk, Burak Yagmur; Uzer, GÖKÇER; UÇAN, VAHDET; TUNCAY, İBRAHİM; UZER, GÖKÇERPublication Metadata only Comparison 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.Publication Open Access Unicompartmental knee arthroplasty combined with high tibial osteotomy in anteromedial osteoarthritis: A case report(2021-01-01T00:00:00Z) UÇAN, VAHDET; Pulatkan, Anil; TUNCAY, İBRAHİM; UÇAN, VAHDET; TUNCAY, İBRAHİMIntroduction and importance: Anteromedial osteoarthritis (AMOA) is a common knee pathology. However, the best treatment of AMOA remains unclear. Unicompartmental knee arthroplasty (UKA) and high tibial osteotomy (HTO) are surgical options for AMOA patients who do not benefit from conservative treatment. We aimed to show an unusual treatment option where UKA and HTO are performed simultaneously. Case presentation: We present a 52-year-old man with AMOA secondary to spontaneous osteonecrosis of the knee (SONK) and metaphyseal tibial varus malalignment, who was successfully treated with a combined UKA and HTO. His functional scores were excellent at the 5-year follow-up. Clinical discussion: Advanced SONK that causes AMOA can be treated with osteochondral autograft transplantation (OAT), HTO, UKA, or total knee arthroplasty (TKA). Although good results have been reported selecting appropriate patients for all of these methods, the best treatment method remains unclear. Conclusion: Although HTO and UKA are alternative treatments for AMOA, successful results can be obtained using both in individual cases.Publication Metadata only Sagittal Patellar Offset Ratio Can Be a Predictor of Anterior Knee Pain after Primary Total Knee Arthroplasty without Patella Resurfacing.(2022-06-02T00:00:00Z) Aliyev, Orkhan; Sarıkaş, Murat; Uçan, Vahdet; Uzer, GÖKÇER; Tuncay, İbrahim; Yıldız, Fatih; UÇAN, VAHDET; UZER, GÖKÇER; TUNCAY, İBRAHİMPublication Metadata only Does 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.Publication Metadata only Ortopedi ve Travmatolojide malpraktis(TOTBİD Dergisi, 2020-01-01) TUNCAY İ.; UÇAN V.; TUNCAY, İBRAHİM; UÇAN, VAHDETPublication Metadata only Is only peripheral compartment hip arthroscopy (OPHA) enough for selected patients?(2019-08-11T00:00:00Z) Tuncay, İbrahim; Uçan, Vahdet; Ağır, Muzaffer; Elmalı, Nurzat; Anwer, Wasif; TUNCAY, İBRAHİM; UÇAN, VAHDET; AĞIR, MUZAFFER; ELMALI, NURZATPublication Metadata only Are the functional outcomes really inferior following unicondylar knee arthroplasty in patients with partial-thickness cartilage loss?(2021-11-01T00:00:00Z) Pulatkan, Anil; YILDIZ, FATİH; UÇAN, VAHDET; ELMALI, NURZAT; TUNCAY, İBRAHİM; YILDIZ, FATİH; UÇAN, VAHDET; ELMALI, NURZAT; TUNCAY, İBRAHİMObjective: The main indication for medial Unicondylar Knee Arthroplasty (UKA) is Full-Thickness Cartilage Loss (FTCL) in the isolated medial compartment of the knee. However, controversial outcomes were reported in patients with Partial-Thickness Cartilage Loss (PTCL). The aim of this study is to compare PTCL and FTCL based on intraoperative findings in medial UKA in terms of functional outcomes and complication rates requiring reoperation and revision.Publication Metadata only Posterior Cruciate Ligament Anatomical Reconstruction(Springer Cham, 2021-01-01) TUNCAY İ.; UÇAN V.; TUNCAY, İBRAHİM; UÇAN, VAHDETPublication Open Access A Novel External Fixator Designed for a More Comfortable and Secure Hip Arthroscopy(2022-01-01T00:00:00Z) Pulatkan, Anil; UÇAN, VAHDET; YILDIZ, FATİH; TUNCAY, İBRAHİM; UÇAN, VAHDET; YILDIZ, FATİH; TUNCAY, İBRAHİMObjective: To evaluate the functional results of a novel external fixator (EF) designed for joint distraction and prevention of traction table-related hip arthroscopy complications Methods: After obtaining promising results in a cadaveric study, 21 hips of 20 patients underwent EF-assisted arthroscopic hip surgeries for femoroacetabular impingement (FAI) and/or labral tear treatments. Patients were operated on a standard operating table in the supine position. A novel EF was used to distract the joint for central hip arthroscopy. The time needed for EF application and joint distraction and the amount of joint distraction were recorded. Preoperative functional scores were retrospectively compared to the postoperative 5-year follow-up results using the Harris Hip and Western Ontario and McMaster Universities Index scores. Results: All patients underwent peripheral and central arthroscopy. The mean time for EF application and joint distraction was 19 min (range: 8-21). The mean amount of joint distraction was 13.2 mm (range: 12-18). None of the arthroscopic procedures had to be converted to open surgery. Functional results of all patients were improved at the 5-year follow-up (p<0.01). Only one patient required hip arthroscopy revision due to residual FAI. No other major or minor complication was found that is related to the EF or arthroscopy itself. Conclusion: Mid-term outcomes following EF-assisted hip arthroscopy demonstrate significant improvement in the functional outcomes without traction table-related complications. EF can be used as an alternative to traction table to maintain adequate hip distraction in arthroscopic hip surgery. In addition to the rotation, a novel designed EF allows hip joint flexion during distraction contrary to traction table.