TR-Dizin İndeksli Açık & Kapalı Erişimli Yayınlar
Permanent URI for this communityhttps://hdl.handle.net/11727/10755
Browse
Item Does severe osteoarthritis in knees with varus deformity alter the adductor ratio?(2017) Boya, Hakan; Arac, Suleyma Sukru; 0000-0001-6110-4004; 29029868; W-7391-2019Objective: In our retrospective study, we aimed to investigate the differences between the adductor ratio (AR) in knees with and without osteoarthritis, and its validity in determining the articular level. Methods: Data from 80 knees of 80 patients were retrospectively evaluated. Anteroposterior weight bearing knee radiographs of the patients with and without osteoarthritis (40 knees in each group) were obtained. The adductor ratio was determined using the following formula: ATJL/FW (adductor tubercle-joint line distance/femoral width). All radiographs were evaluated at the baseline and at one-month intervals afterwards. Intraobserver reliability of the two measurements was assessed using interclass correlations (ICC). Pearson's correlation test was used to evaluate the correlation between the ATJL and the FW. The differences between the adductor ratios of the two groups were evaluated by the independent samples two-tailed t-test. Results: Most of the ICC values were well above 0.95, indicating a very high intraobserver reliability. The adductor ratio was significantly greater in Group 2 in comparison to Group 1 (Mean AR in Group 2: 0.522 +/- 0.031 and Mean AR in Group 1: 0.502 +/- 0.032; p = 0.005). There was a significant correlation between the ATJL and FW in the groups when assessed both separately and combined. Conclusion: In conclusion, we can assert that if the AR is used to determine the articular level in revision arthroplasty cases, it may be sensible to measure the FW intraoperatively rather than measuring it on primary or contralateral radiographs of arthritic patients. (c) 2017 Turkish Association of Orthopaedics and Traumatology. Publishing services by Elsevier B.V.Item Obese patients require higher, but not high pneumatic tourniquet inflation pressures using a novel technique during total knee arthroplasty(2018) Tuncali, Bahatin; Boya, Hakan; Kayhan, Zeynep; Arac, Sukru; 0000-0003-0579-1115; 0000-0002-7898-2943; 0000-0001-6110-4004; 29526158; AAJ-4623-2021; AAJ-7840-2021; AAJ-7840-2021Objectives: This study aims to investigate the effect of obesity on pneumatic tourniquet inflation pressures determined with a novel formula during total knee arthroplasty (TKA). Patients and methods: Data of 208 patients (19 males, 199 females; mean age 69.8 years; range, 53 to 84 years) who were performed TKA between January 2013 and December 2016 were evaluated prospectively. Patients were divided into two groups as non-obese (body mass index [BMI] <= 30.0 kg/m(2)) and obese (BMI > 30.0 kg/m(2)) according to BMI. Tourniquet inflation pressures were set using arterial occlusion pressure (AOP) estimation method and adding 20 mmHg of safety margin to AOP value. All patients were assessed intra-and postoperatively with outcome measures such as systolic blood pressure, AOP, tourniquet pressure and its effectiveness. The quality of the surgical field and complications were assessed by the surgical team in a blinded fashion. Results: The study included 118 and 90 lower extremity operations in obese and non-obese groups, respectively. Compared to non-obese group; extremity circumference, initial and maximal systolic blood pressures, AOP values, initial and maximal tourniquet pressures were higher in obese group. The performance of the tourniquet was assessed as "excellent" and "good" at almost all stages of the surgical procedure in all patients in both groups. No complication occurred intra-or postoperatively. Conclusion: Compared to non-obese patients, higher tourniquet inflation pressure is required in obese patients during TKA due to their wider extremity circumference and higher systolic blood pressure profile.Item A rare complication of total knee arthroplasty: Type l complex regional pain syndrome of the foot and ankl(2016) Soylev, Gozde Ozcan; Boya, Hakan; 0000-0001-6110-4004; 0000-0001-8742-5543; 27726920; W-7391-2019; AAJ-4917-2021Complex regional pain syndrome (CRPS) is a painful and disabling disorder that usually affects the extremities. This complication may affect the knee joint after total knee arthroplasty (TKA). We report a unique case of CRPS of the foot and ankle, which was an unusual involvement site for CRPS after TKA. (C) 2016 Publishing services by Elsevier B.V. on behalf of Turkish Association of Orthopaedics and Traumatology.