Person: GÜRKAN, VOLKAN
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Publication Open Access Use of cement combined grafting in upper and lower extremity benign bone tumors(2020-01-01T00:00:00Z) Pulatkan, Anil; Ucan, Vandet; TOKDEMİR, SEVİL; ELMALI, NURZAT; GÜRKAN, Volkan; UÇAN, VAHDET; TOKDEMİR, SEVİL; ELMALI, NURZAT; GÜRKAN, VOLKANObjectives: This study aims to investigate the effectivity of cement combined demineralized bone matrix (DBM) treatment on new bone formation in the cortical window as well as to evaluate the effect of new bone formation on functional outcomes. Patients and methods: Thirty-two benign bone tumor patients (15 males, 17 females; median age 38 years; range, 12 to 68 years), who were treated with cement combined DBM between February 2010 and December 2014, were evaluated retrospectively. Patient characteristics were recorded as age, gender, tumor localization, histological diagnosis, Enneking stage, tumor size, size of the cortical window, usage of prophylactic fixation, time to return to work, Musculoskeletal Tumor Society (MSTS) functional score, tumor relapse, and new bone formation on the cortical window in the computed tomography scans after one year of surgery. Results: Median tumor volume was 17.2 cm 3 (range, 2.8 to 139.6 cm 3 ), median area of the cortical window was 8.3 cm 2 (range, 1.6 to 28.4 cm 2 ), and median postoperative one-year MSTS score was 84.5 (range, 66 to 97). MSTS scores were significantly worse with the usage of prophylactic fixation (p<0.001). There was a statistically significant difference between the usage of prophylactic fixation and cortical window size (p=0.013). There was a low-level negative correlation in terms of age and bone formation on the cortical window (p=0.046, r= -0.356) and mid -level negative correlation between cortical window size and functional scores (p=0.001, r= -0.577). Conclusion: Application of cement combined with DBM procedure is an effective, alternative, and biological treatment in bone tumors that provides immediate stability and stimulates new bone formation on the cortical window.Publication Open Access Results of the Local Steroid Injections in the Simple Bone Cyst(2020-01-01T00:00:00Z) UÇAN, VAHDET; Pulatkan, Anil; ERDEM, Ahmet Can; KAPICIOĞLU, Mehmet; GÜRKAN, Volkan; UÇAN, VAHDET; ERDEM, AHMET CAN; KAPICIOĞLU, MEHMET; GÜRKAN, VOLKANObjective: Steroid injections represent one of the simple treatment alternatives for simple bone cysts (SBC). The aim of this study was to evaluate the results of local steroid injections in the treatment of SBC. Methods: Seventeen patients (11 males, 6 females; mean age 12.4 years; range=2 to 39 years) with SBC were treated with injection of methylprednisolone acetate (MPA) with the use of the two-needle technique. The cysts were localized in the proximal humerus (n=6), the calcaneus (one patient had bilateral lesions) (n=2), proximal femur (n=7) and the tibia (n=2). Pathological fractures occurred in three patients before steroid injection. These three patients with pathological fractures were treated with injection of MPA after fractures healed. Each patient received a maximum of four injections at eight week intervals, each consisting of 40-160 mg of MPA. The patients were followed up with plain radiographs obtained in the first month, third month, sixth month, and at the end of a year. After the first year, patients were followed up with plain radiographs once a year. The mean follow-up duration was twenty two months (range=3 to 48 months). Cyst healing was assessed according to the modified Neer classification. Results: Treatment with MPA resulted in complete recovery in ten cysts (55%) and recovery with residual lesions in three cysts (17%). Three cysts (17%) did not respond to steroid treatment and two patients (11%) developed recurrence. The results were satisfactory (72%) in patients with complete recovery and partial recovery with residual lesions, and unsatisfactory in five patients (28%). The patients with recurrence were treated with curettage and grafting or cementation. No procedure-related complications were encountered. Conclusion: Our findings suggest that, the treatment with local steroid injection in SBC provides satisfactory results, thus this treatment with low morbidity can be applied to these patients before aggressive treatment.Publication Open Access Hand osteoid osteoma: evaluation of diagnosis and treatment(2019-01-01T00:00:00Z) Erdogan, Ozgur; GÜRKAN, Volkan; GÜRKAN, VOLKANOO (osteoid osteoma) is a common, osteoblastic, benign bone tumor but rarely seen in the hand region. There is still some debate about the diagnosis and treatment of hand OOs. In the present study, we aimed to evaluate the epidemiology, radiologic features, surgical treatment options and functional outcomes.Publication Open Access Radiological Appearences of Benign Soft-tissue Tumors of the Hand and Wrist with Special Emphasis on NRI(2022-04-01T00:00:00Z) YILMAZ, TEMEL FATİH; TOPRAK, HÜSEYİN; Atasoy, Bahar; SÖNMEZ, FATMA CAVİDE; ARALAŞMAK, Ayşe; GÜRKAN, Volkan; YILMAZ, TEMEL FATİH; TOPRAK, HÜSEYİN; ATASOY, BAHAR; SÖNMEZ, FATMA CAVİDE; ARALAŞMAK, AYŞE; GÜRKAN, VOLKANTumoral and pseudotumoral lesions of the hand and wrist are commonly encountered in routine clinical practice. Although most of them arc benign, radiological differential diagnosis of these lesions is difficult, because of their nonspecific imaging findings, except ganglia, localized type of tenosynovial giant cell tumors and lipomas. Digital radiography, computed tomography, and ultrasound may be useful in identification of the lesions in the wrist and hand, but magnetic resonance imaging with superior contrast and spatial resolution is the most important imaging modality.