Person: UZER, GÖKÇER
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Publication Open Access Comparison of Small-diameter-hole and Traditional Microfracture in Cartilage Repair and the Effect of Adding a Hyaluronic Acid-based Acellular Matrix Scaffold: An Animal Study(2021-03-01T00:00:00Z) UÇAN, VAHDET; YILDIZ, FATİH; ELMADAĞ, Nuh Mehmet; UZER, GÖKÇER; GÜZEL, YUNUS; TOK, OLGU ENİS; Mukaddes, E.; UÇAN, VAHDET; YILDIZ, FATİH; ELMADAĞ, NUH MEHMET; UZER, GÖKÇER; TOK, OLGU ENİS; EŞREFOĞLU, MUKADDESObjective: Since, there is no standardized technique for the treatment of focal cartilage defects that can recreate original cartilage tissue; researchers continue to explore and evaluate various treatment modalities. This study compared post-operatke healing of cartilage defects after treatment with small-diameter-hole microfracture (SDHM) technique with that of traditional microfracture technique. The effects of the hole density and augmentation with hyaluronic acid-based acellular matrix (HA-based AM) on cartilage healing were also investigated. Methods: Articular cartilage defects measuring 5 mm in diameter and 3 mm in depth were created in each femoral trochlear groove of 21 New Zealand rabbits. Rabbits were assigned to seven groups comprising six knees each. The rabbits were sacrificed 12 weeks later, and the regenerated cartilage was harvested for histological evaluation using the Wakitani scoring system. Results: All defects were filled with regenerated tissue macroscopically. Group I (14; range 10-14 points) had significantly higher Wakitani score than in groups VI (6; range 1-11 points) and VII (5; range 3-10 points) (p=0.043 and p=0.016, respectively). No significant differences were observed among the other groups. Augmentation with HA-based AM did not contribute to cartilage healing. Conclusion: Improved cartilage healing was observed with increasing SDHM density than with traditional microfracture technique. SDHM combined with HA-based AM implantation did not improve the quality of the regenerated cartilage.Publication Metadata only ARTROSKOPİK LATERJET:ÖĞRENME EĞRİSİ VE ERKEN DÖNEM SONUÇLARI(2014-11-16) BİLSEL, İSMAİL KEREM; UZER, GÖKÇER; ELMADAĞ, NUH MEHMET; YILDIZ, FATİH; ALİ, JOTYAR; TUNCAY, İBRAHİM; BİLSEL, İSMAIL KEREM; UZER, GÖKÇER; ELMADAĞ, NUH MEHMET; YILDIZ, FATİH; ALİ, JOTYAR; TUNCAY, İBRAHİMPublication Metadata only HUMERUS ÜSTUÇ KIRIĞI NEDENİYLE OTOGREFT KULLANILARAK VEYA KULLANILMADAN TERS OMUZPROTEZİ YAPILAN HASTALARININ SONUÇLARI(2017-01-10) UZER, GÖKÇER; YILDIZ, FATİH; BİNLAKSAR, RUWAİS; ELMADAĞ, NUH MEHMET; KUŞ, GAMZE; BİLSEL, İSMAİL KEREM; UZER, GÖKÇER; YILDIZ, FATİH; ELMADAĞ, NUH MEHMET; BİLSEL, İSMAIL KEREMPublication Metadata only TOTAL KALÇA ARTROPLASTİSİ DİREKT ANTERİOR YAKLAŞIMINDA ÖĞRENME EĞRİMİZ(2014-11-16) TUNCAY, İBRAHİM; YILDIZ, FATİH; UZER, GÖKÇER; ELMADAĞ, NUH MEHMET; BATAR, SUAT; TUNCAY, İBRAHİM; YILDIZ, FATİH; UZER, GÖKÇER; ELMADAĞ, NUH MEHMETPublication Metadata only Biomechanical Comparison of 2 Different Femoral Stems in the Shortening Osteotomy of the High-Riding Hip(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, TUNAYBackground: 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.Publication Open Access Comparison of two types of proximal femoral hails in the treatment of intertrochanteric femur fractures(2015-09-01) Uzer, GÖKÇER; Elmadag, NUH MEHMET; Yildiz, FATİH; Bilsel, Kerem; Erden, TUNAY; Toprak, HÜSEYİN; UZER, GÖKÇER; ELMADAĞ, NUH MEHMET; YILDIZ, FATİH; BİLSEL, İSMAIL KEREM; ERDEN, TUNAY; TOPRAK, HÜSEYİNBackground: Hip nailing is frequently used to treat unstable intertrochanteric femoral fractures (ITF) in elderly patients. In this retrospective study, we compared the functional and radiological results, and the complications, of patients treated using proximal femoral nails (PFN) with an integrated, interlocking, compression lag screw, or two separate lag screws, which allow linear compression at the fracture site. Methods: A total of one hundred and eighteen patients were operated on for AO/OTA 31-A2 ITF between May 2010 and April 2012, and eighty-two of these patients, for whom sufficient follow-up data and documentation were available, were included into the study. PFNs with interlocking, integrated lag screws (Group I) were used in forty-four patients, and PFNs with two separate lag screws (Group II) in thirty-eight. Outcome parameters were the extent of varus collapse and leg length discrepancy on radiographs, and the Western Ontario and McMaster Universities Arthritis Index (WOMAC) and Harris hip scores (HHS) as functional results. Results: Mean follow-up duration was 20 months (range, 12-36 months); fractures healed in all patients. Mean varus collapse values were 2.03±5.68° and 5.21±5.27° (p=0.01), Harris hip scores 73.2±11.65 and 74.72±11.15 (p=0.54), and WOMAC scores 70.78±11.41 and 71.78±11.19 (p=0.69) in Groups I and II, respectively. No difference was detected between the groups in terms of outcome parameters or complication rate. Conclusion: In the treatment of ITF, PFNs with an integrated, interlocking, compression lag screw, or two separate lag screws did not differ in terms of functional and radiological results or complication rate.Publication Metadata only 60 YAŞ ALTI BAYAN MEDİAL EKLEM OSTEOARTRİTİ OLAN HASTALARDA UNİKOMPARTMANTAL DİZ PROTEZİ VE YÜKSEK TİBİAL OSTEOTOMİNİN KLİNİK VE FONKSİYONEL SONUÇLARININ KARŞILAŞTIRILMASI(2014-11-16) UZER, GÖKÇER; YILDIZ, FATİH; ELMADAĞ, NUH MEHMET; KARA, DENİZ; TUNCAY, İBRAHİM; UZER, GÖKÇER; YILDIZ, FATİH; ELMADAĞ, NUH MEHMET; TUNCAY, İBRAHİMPublication Metadata only Comparison of four different techniques for performing an osteotomy A BIOMECHANICAL, RADIOLOGICAL AND HISTOLOGICAL STUDY ON RABBITS TIBIAS(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, NURThis 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.Publication Open Access Bilateral Complete-type Medial Discoid Meniscus(2015-12-01T00:00:00Z) Uzer, GÖKÇER; Yildiz, FATİH; PULATKAN, MEHMET ANIL; Elmadag, NUH MEHMET; UZER, GÖKÇER; YILDIZ, FATİH; PULATKAN, MEHMET ANIL; ELMADAĞ, NUH MEHMETDiscoid meniscus is an uncommon congenital anomaly, and it is rarely seen in the medial compartment of the knee. Literature about bilateral medial discoid meniscus pathology is also limited because one of the knees is usually asymptomatic, although the pathology bilaterally exists. The incidence of bilateral cases should be more than that in current literature because of a number of non-diagnosed cases. In this study, we discuss the approach for a patient with one-sided symptomatic bilateral medial discoid meniscus and present partial meniscectomy as a treatment method.Publication Metadata only EFFICACY OF BONE MARROW-STIMULATING TECHNIQUE IN ROTATOR CUFF REPAIR(2017-08-10) BİLSEL, İSMAİL KEREM; YILDIZ, FATİH; KAPICIOĞLU, MEHMET; UZER, GÖKÇER; ELMADAĞ, NUH MEHMET; PULATKAN, ANIL; EŞREFOĞLU, MUKADDES; BOZDAĞ, SÜREYYA ERGUN; MILANO, GUISEPPE; BİLSEL, İSMAIL KEREM; YILDIZ, FATİH; KAPICIOĞLU, MEHMET; UZER, GÖKÇER; ELMADAĞ, NUH MEHMET; EŞREFOĞLU, MUKADDES
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