Person: GÜRKAN, VOLKAN
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Publication Open Access Osteoid osteoma of the cuboid bone: a rare cause of foot pain.(2011-01-01) Gürkan, VOLKAN; ORHUN, H; BÜLBÜL, M; KAYAHAN, S; GÜRKAN, VOLKANOsteoid osteoma, a common bone lesion of benign nature, is more rarely seen in feet. It most commonly involves the talus yet rarely the cuboid. The atypical symptoms of foot involvement may delay the diagnosis. Differential diagnosis most commonly includes ankle sprain, monoarticular arthritis, anterior impingement syndrome, tarsal spur, osteomyelitis, stress fracture, eosinophilic granuloma. The delay in diagnosis and treatment of osteoid osteoma in the foot may be a cause of chronic foot pain. In this study, we present a 17-year-old boy with osteoid osteoma in his right cuboid bone. The patient was undiagnosed during the first year of his symptoms. After surgical removal of the tumor, his complaints were resolved. The pathological examination confirmed the diagnosis of osteoid osteoma. Osteoid osteoma is an unusual bone tumor of the foot. It should be included in the differential diagnosis of patients exhibiting foot pain. In speculative cases with no obvious radiographic findings, further imaging studies, such as CT, should be considered.Publication Open Access An Unusual Localization of Intraosseous Schwannoma: The Hamate Bone.(2017-02-23) Gurkan, VOLKAN; SONMEZ, C; ARALASMAK, AYŞE; YILDIZ, F; ERDOGAN, O; GÜRKAN, VOLKAN; ARALAŞMAK, AYŞEIntraosseous schwannoma of the hamate bone presented in this case is a very rare benign tumor, and its diagnosis combined with clinical, imaging and needle biopsy is important to guide further therapy. The diagnosis of schwannoma of the hamate was proved histologically following its surgical treatment by curettage.Publication Open Access Metatarsal head resurfacing hemiarthroplasty in the treatment of advanced stage hallux rigidus: outcomes in the short-term(2012-07-01) ERDIL, Mehmet; Bilsel, Kerem; IMREN, Yunus; MUTLU, Serhat; GULER, Olcay; Gurkan, VOLKAN; Elmadag, NUH MEHMET; Tuncay, Ibrahim; BİLSEL, İSMAIL KEREM; GÜRKAN, VOLKAN; ELMADAĞ, NUH MEHMET; TUNCAY, İBRAHİMObjective: The aim of this study was to evaluate the short-term outcomes of metatarsal head metal resurfacing hemiarthroplasty in patients with advanced stage hallux rigidus. Methods: The study included 14 feet (4 left, 10 right) of 12 patients (10 female, 2 male; mean age: 63 ± 5; range: 55 to 71 years) who underwent metatarsal head metal resurfacing hemiarthroplasty (HemiCAP(®)) between 2007 and 2010. Additionally, capsular release and periarticular osteophyte debridement were performed. Staging was made according to Coughlin and Shurnas' clinical and radiological grading system. Hallux valgus and intermetatarsal angles were measured using pre and postoperative standing AP and lateral foot views. Clinical assessment was made with first metatarsophalangeal joint range of motion, the AOFAS (American Orthopaedic Foot and Ankle Society) hallux metatarsophalangeal-interphalangeal scale and satisfaction level. Results: Mean follow up was 19.5 (range: 14 to 26) months. Two patients had bilateral involvement. According to Coughlin and Shurnas' clinical and radiological grading system, nine feet were Stage 3 and five feet were Stage 4. According to the AOFAS scale, results of eight feet (57.1%) were excellent, four feet (28.6%) were good and two feet (14.3%) were moderate. Mean total AOFAS score increased by 26.2 points postoperatively (p<0.05). Mean range of motion of the first metatarsophalangeal joint improved significantly from a preoperative 22.2 ± 5.6 (range: 10 to 28) degrees to a postoperative 56.3 ± 9.6 degrees (p<0.05). Mean hallux valgus angle decreased from a preoperative 14.3 (range: 9 to 17) degrees to a postoperative 11.1 (range: 4 to 13) degrees and the mean intermetatarsal angle increased from a preoperative 10.5 (range: 8 to 14) degrees to a postoperative 10.8 (range: 8 to 15) degrees. Patient satisfaction levels were very good in 10 feet (71.4%), good in 3 (21.4%), and moderate in one (7.2%). Complications included metatarsalgia aggravated by long walks in one patient and hypoesthesia of the great toe in three patients. Push-off power of the great toes was measured as 4/5 in three cases, and 5/5 in others. Conclusion: Metatarsal head metal resurfacing hemiarthroplasty provides high patient satisfaction level and good functional outcome in the short-term, in the surgical treatment of advanced stage hallux rigidus refractory to conservative treatment options.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.