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Author: search.filters.author.Boya, HakanHas files: No

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    Reliability of Real-Time Sonoelastography in the Diagnosis of Supraspinatus Tendinopathy
    (2021) Aydin, Elcin; Soylev, Gozde Ozcan; Muratli, Sedit Kivanc; Limnili, Bora Bora; Boya, Hakan; Tekindal, Mustafa Agah; Agildere, Muhtesem; 0000-0001-8742-5543; 0000-0001-8742-5543; 31107427; AAI-8276-2021; AAJ-4917-2021
    The practicality of real-time sonoelastography in the diagnosis of tendinopathy is being discussed since the beginning of its use in musculoskeletal system. The aims of this study were to compare the elasticity of pathologic supraspinatus tendon with the uninvolved side by sonoelastography and to determine the relationship between the sonoelastographic findings and magnetic resonance imaging (MRI) grade of the tendinosis. Eighty-2 patients (50 males, 32 females, mean +/- SD age = 53.61 +/- 16.15 years, range = 20-84 years) with unilateral supraspinatus tendinosis were included in this study. Three grades of tendinosis were identified in MRI (grade 1: mild, grade 2: moderate, and grade 3: severe). The strain ratio (SR) of the tendinosis area to the healthy normal area of the same tendon tissue and SR of the tendinosis area to ipsilateral subcutaneous fat tissue were evaluated with sonoelastography. The SRs of the tendinosis areas were also compared with the control (contralateral) side tendon tissue and subcutaneous fat tissue of the same patients. Between-groups comparisons were also done according to the MRI grading. Statistical analysis was done using paired t test (P < 0.005 was considered statistically significant). There was a statistically significant difference in the comparison of the SRs of the tendinosis areas to subcutaneous fat tissues on ipsilateral shoulders (TA/SFT) and the healthy supraspinatus tendon area (TA/ST) of the same shoulder. There was also statistically significant difference when compared with the control side measurements (P < 0.01). In patients who have grade 1 and grade 3 tendinosis on MRI, there was statistically significant difference between elastrographic evaluation of affected and unaffected sides. Real-time sonoelastography is a reliable diagnostic method in patients with rotator cuff tendinosis and shall be kept in mind as a noninvasive, inexpensive, and practical diagnostic test in suitable cases.
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    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-7840-2021
    Objectives: 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.