Egemen Ayhan
Istanbul University
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Featured researches published by Egemen Ayhan.
Foot and Ankle Surgery | 2011
Tahir Ogut; Egemen Ayhan
We present a case report involving the flexor digitorum accessorius longus (FDAL) tendon which travels through a fibro-osseous tunnel together with the flexor hallucis longus (FHL) tendon, causing a stenosing tenosynovitis. The patient was admitted with posteromedial ankle pain and diagnosed clinically as FHL tenosynovitis. We found two tendons in the tunnel during hindfoot endoscopy. The stenosis was relieved by endoscopic debridement. After the operation, we checked the MRI images and observed two tendons. We concluded that the accessory tendon was the FDAL. Two years later the patient was admitted with the same symptoms. We excised the FDAL muscle and the patients symptoms resolved. The FDAL muscle is a cause of FHL tenosynovitis. Because of its variability and mostly asymptomatic nature, it may not be noticed it on an MRI scan. Hindfoot endoscopy is a safe tool for the diagnosis of this condition and curative treatment is afforded by excision of the FDAL muscle.
Clinical Rheumatology | 2013
Metin Uzun; Egemen Ayhan; Burak Beksac; Özgür Karaman
We hypothesized that regional migratory osteoporosis (RMO) and transient osteoporosis of the hip (TOH) terms describe a common disease process. Therefore, based on our patient, we aimed to review the pathogenesis, diagnosis, and treatment of both diseases. The patient was a pregnant woman in her third trimester with sacral insufficiency fracture, which was shortly followed by migratory arthralgia of both hips and ankles in a proximal to distal direction. She was operated (core decompression) for both hips and ankles, and she was symptom free at 17th month. RMO and TOH have an unclear etiology, share the similar course, and bear a self-limiting nature. Both disorders may be the same clinical entity with a common pathogenesis. Probably, many of RMO patients were labeled as TOH, and therefore, RMO has been underrepresented. In conclusion, we think that both RMO and TOH describe a common disease process. Either the diagnosis is RMO or TOH, the management will be the same. Finally, the conservative treatment protocol is a better treatment modality and must be obeyed even in resistant cases.
Balkan Medical Journal | 2013
Egemen Ayhan; Hayrettin Kesmezacar; Özgür Karaman; Adem Şahin; Nail Kır
BACKGROUND The choice of prosthesis in hemiarthroplasty is controversial for geriatric patients after femoral neck fracture. We hypothesised that selection criteria for unipolar or bipolar prostheses could be constructed based on factors affecting mortality. AIMS THE AIMS OF THIS RETROSPECTIVE STUDY WERE: (1) to determine the factors affecting mortality of femoral neck fracture patients ≥65 years of age; (2) to compare patient mortality rates, radiological findings, and functional outcomes according to prosthesis type (unipolar or bipolar); and (3) to evaluate the persistence of inner bearing mobility of bipolar prostheses. STUDY DESIGN Retrospective comparative study. METHODS In total, 144 patients operated for hemiarthroplasty and aged ≥65 were included. We classified the patients into either unipolar or bipolar prosthesis groups. To reveal factors that affected mortality, age, sex, delay in surgery, and American Society of Anesthesiologists score were obtained from folders. Barthel Daily Living, Harris hip, and acetabular erosion scores were calculated and bipolar head movement was analysed for live patients. RESULTS One-year mortality was 31.94%. Age ≥75 (p=0.029), male sex (p=0.048), and delay in surgery ≥6 (p=0.004) were the patient characteristics that were related to increased mortality. There were no significant differences in sex, age, American Society of Anesthesiologists score, delay in surgery, mortality, or Barthel, Harris, acetabulum scores between the two groups. Twenty patients from each group were admitted for last follow-up. Bipolar head movement was preserved for 33.3% of patients. They were inactive patients with low Barthel and Harris scores. CONCLUSION Although bipolar head movement was preserved in inactive patients, we suppose that this conferred no advantage to these patients, who could hardly walk. In this study, male patients, those aged ≥75 years, and those operated at ≥6 days had an increased risk of mortality. Also, although not significant in multivariate analysis, high American Society of Anesthesiologists score (≥3) was related to increased mortality. Considering that one of three patients died during the first postoperative year, we think that these patients should be operated as soon as possible, and expensive bipolar prostheses must be used selectively in regard to patient characteristics.
World journal of orthopedics | 2014
Egemen Ayhan; Hayrettin Kesmezacar; Isik Akgun
Knee Surgery, Sports Traumatology, Arthroscopy | 2011
Tahir Ogut; Egemen Ayhan; Kaan Irgit; Abdullah Ilker Sarikaya
Journal of Trauma-injury Infection and Critical Care | 2010
Hayrettin Kesmezacar; Egemen Ayhan; Mehmet Can Unlu; Ali Seker; Saffet Karaca
European Journal of Orthopaedic Surgery and Traumatology | 2014
Özgür Karaman; Egemen Ayhan; Hayrettin Kesmezacar; Ali Seker; Mehmet Can Unlu; Onder Aydingoz
Journal of Shoulder and Elbow Surgery | 2015
Sema Ertan; Egemen Ayhan; Mehmet Güven; Hayrettin Kesmezacar; Kenan Akgun; Muharrem Babacan
Anesthesiology Research and Practice | 2012
Saffet Karaca; Egemen Ayhan; Hayrettin Kesmezacar; Omer Uysal
Journal of Foot & Ankle Surgery | 2011
Tahir Ogut; Egemen Ayhan; Fatih Kantarci; Mehmet Can Unlu; Muhammet Salih