Browsing by Author "Polat, Gökhan"

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    Does the Screw Orientation Effects the Stability of Femoral Neck Fracture?: A Finite Element Analysis
    (Acıbadem Mehmet Ali Aydınlar Üniversitesi, 2018-09-01) Özkunt, Okan; Sarıyılmaz, Kerim; Akgül, Turgut; Polat, Gökhan; Dikici, Fatih
    ABSTRACT Objectives: The incidence of femoral neck fractures in younger-age people increases due to high-energy trauma. To avoid complications, stable internal fixation is essential. The most commonly used implants for vertically oriented femoral neck fractures are the cannulated and dynamic hip screws. In our study, we compared differently oriented cannulated screw configurations and a standard DHS for fixation of femoral neck fracture. Materials and Methods: A finite element-based collum femoris fracture was created and was fixed using four differently oriented triangular screw configurations and a dynamic hip screw. The loads were applied using a commercially available software package. Results: Centrally oriented cannulated screw configuration had the most compression and compression stress on the fracture side, and it had the highest stress values on the implant. Conclusion: We recommend the use of centrally oriented triangular cannulated screws for femoral neck fracture fixation. With this construct, more compression and compression pressure can be obtained, which can result in the early healing of the fracture. However, it must be kept in mind that this construct exerts more stress on the implant, which could be a reason for implant failure.
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    Effect of Treatment Modality on Mobility and Quality of Life in Unstable Intertrochanteric Fractures
    (Acıbadem Mehmet Ali Aydınlar Üniversitesi, 2022-01-01) Karademir, Gökhan; Bilgin, Yücel; Demirel, Mehmet; Polat, Gökhan; Erşen, Ali; Kızılkurt, Taha; Büget, Mehmet İlke; Yazıcıoğlu, Önder
    ABSTRACT Purpose: The aim of the study was to investigate mobility and quality of life in patients who underwent osteosynthesis with proximal femoral nail (PFN), or arthroplasty for unstable intertrochanteric fractures. Methods: Treatment outcomes of 117 patients (76 Female/41 Male) who were treated with PFN (Group 1, n=66), hemiarthroplasty (Group 2, n=42), or total hip arthroplasty (Group 3, n=9) between 2008 and 2014 were retrospectively evaluated. The mobility of the patients was evaluated with the Palmer and Parker mobility score, and the quality of life was evaluated with the Barthel quality of life index. Results: The mean ages in the groups were 83.51 (range, 75-97) years, 84.72 (range, 75-109) years, and 83.37 (range, 75-94) years; respectively. The mean follow-up periods were 23.26 (range, 3-43.9) months, 19.24 (range, 3-38) months, and 20.1 (range, 3-40) months; respectively. There was no statistically significant difference between the 3 groups in terms of age and follow-up time (p>0.05). Palmer-Parker mobility scores were 6.23 for Group 1, 3.68 for Group 2, and 4.22 for Group 3. Barthel Indexes were 68.73 for Group 1, 37.75 for Group 2, and 52.77 for Group 3. Group 1 had a statistically significantly higher Palmer-Parker mobility and Barthel Index score than Group 2 and Group 3 (p<0.001). Conclusion: We concluded that osteosynthesis with PFN was more advantageous than hemiarthroplasty or total hip arthroplasty in terms of mobilization and quality of life in patients who were operated on for unstable intertrochanteric fracture.