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    Adolescent pelvic chondrosarcoma, surgical treatment, and unusual reconstruction with pedestal conic cup (LUMIC®) A case report
    (Turkish Joint Diseases Foundation, 2020) Colak, Tahsin Sami; Kekec, Ahmet Fevzi
    An 18-year-old male patient was diagnosed pelvic chondrosarcoma histopathologically. Hip joint involvement was detected. No metastasis or neurovascular invasion was seen. Type I+II pelvic resection and hip reconstruction were planned with pedestal cup (LUMIC (R)) and proximal femur tumor prosthesis. Surgery was performed in lateral decubitus position with extensive triradiate incision. Pelvic wide resection was performed. At the second year of follow-up, implant failure was detected and patient was revised with same pedestal cup. Axial stability was supported by a 1.5 screw and connector from 1.5 vertebrae to LUMIC (R) prosthesis. Except the implant failure. no oncological complication or infection was observed during the final 36th month follow-up.
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    Does the pre-operative neutrophil-lymphocyte ratio have a predictive value in detecting infection in type 3 open tibia diaphysis fractures?
    (Turkish Assoc Trauma Emergency Surgery, 2022) Colak, Tahsin Sami; Kekec, Ahmet Fevzi
    BACKGROUND: This retrospective study was aimed to investigate whether the pre-operative neutrophil-lymphocyte (N/L) ratio has a predictive value in terms of evaluating the development of infection in patients with type 3 open fractures of the tibia diaphysis. METHODS: A total of 72 patients with type 3 open tibia fractures who consulted to the emergency service at the Necmettin Erbakan University Meram Faculty of Medicine, during the period between 2015 and 2020 were retrospectively examined. A total of 39 patients who underwent external fixator in the first treatment were included in the study. The information pertaining to the patients such as the patient demographic data, type of injury, wound cultures, and N/L rates during the pre-operative period were recorded. Patients were divided into two groups based on the presence of infection: Group 1 (12 patients) consisted of patients who had infection, and Group 2 (27 patients) consisted of patients who had no infection. RESULTS: 34 (87.2%) of the patients were male and 5 (12.8%) were women. The mean age of these patients was 43.18??18.67 (19???80). Infection was detected in 12 (30.8%) out of 39 patients. Of these patients, 9 (75%) were monomicrobial, and 3 (25%) were polymicrobial. The most common mechanism of the injury was gunshot injury in 16 (41%) of all patients. However, there was no significant difference between the groups in terms of mechanism of injury (p=0.445). When all patients were examined in terms of N/L rates and presence of infection, there was no significant difference between Group 1 and Group 2 (p=0.976). CONCLUSION: Although N/L ratio of the blood in the pre-operative period has a predictive value for chronic diseases, we believe that it has no predictive value for detecting infection in patients with type 3 acute open tibia fractures.
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    Does the pre-operative neutrophil-lymphocyte ratio have a predictive value in detecting infection in type 3 open tibia diaphysis fractures?
    (Turkish Assoc Trauma Emergency Surgery, 2022) Colak, Tahsin Sami; Kekec, Ahmet Fevzi
    BACKGROUND: This retrospective study was aimed to investigate whether the pre-operative neutrophil-lymphocyte (N/L) ratio has a predictive value in terms of evaluating the development of infection in patients with type 3 open fractures of the tibia diaphysis. METHODS: A total of 72 patients with type 3 open tibia fractures who consulted to the emergency service at the Necmettin Erbakan University Meram Faculty of Medicine, during the period between 2015 and 2020 were retrospectively examined. A total of 39 patients who underwent external fixator in the first treatment were included in the study. The information pertaining to the patients such as the patient demographic data, type of injury, wound cultures, and N/L rates during the pre-operative period were recorded. Patients were divided into two groups based on the presence of infection: Group 1 (12 patients) consisted of patients who had infection, and Group 2 (27 patients) consisted of patients who had no infection. RESULTS: 34 (87.2%) of the patients were male and 5 (12.8%) were women. The mean age of these patients was 43.18??18.67 (19???80). Infection was detected in 12 (30.8%) out of 39 patients. Of these patients, 9 (75%) were monomicrobial, and 3 (25%) were polymicrobial. The most common mechanism of the injury was gunshot injury in 16 (41%) of all patients. However, there was no significant difference between the groups in terms of mechanism of injury (p=0.445). When all patients were examined in terms of N/L rates and presence of infection, there was no significant difference between Group 1 and Group 2 (p=0.976). CONCLUSION: Although N/L ratio of the blood in the pre-operative period has a predictive value for chronic diseases, we believe that it has no predictive value for detecting infection in patients with type 3 acute open tibia fractures.
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    Is there a predictive value of the preoperative neutrophil-lymnhocyte ratio in terms of intensive care need in geriatric patients who underwent pertrochanteric fracture surgery?
    (Turkish Assoc Trauma Emergency Surgery, 2022) Kekec, Ahmet Fevzi; Colak, Tahsin Sami
    BACKGROUND: Pertrochanteric fractures are serious health problem with an ever-increasing prevalence in elderly population. Potential post-operative intensive care need leads to delays in the timing of surgery due to the referral of patients to better equipped hospitals as well as the inability to arrange a reserved intensive care bed. The purpose of this study is to investigate whether pre-operative neutrophil-lymphocyte ratio (NLR) has predictive value in terms of post-operative intensive care need in geriatric patients who underwent surgery following pertrochanteric fractures. METHODS: total of 535 patients aged 65 years and above with hip fractures who presented to the emergency service between 2017 and 2020 were retrospectively screened. Out of 535 patients, 317 patients who met the inclusion and exclusion criteria were included in the study. The screened patient population was divided into two groups as those followed in the post-operative intensive care unit (ICU) and those followed in the orthopedic ward. RESULTS: There were 190 patients (59.9%) who were followed in the orthopedic ward postoperatively and 127 (40.1%) patients followed in the ICU postoperatively. While the mean pre-operative NLR value of all patients was 6.57, the mean pre-operative NLR of the patients who were followed up postoperatively in the orthopedic ward was 5.85, and the mean NLR of those who were followed up in the ICU was 7.65. It was found that the admission NLR values of the ICU group patients were significantly higher compared to those of the orthopedic ward group (p<0.001) and also the cutoff value of NLR was calculated as 6.14. CONCLUSION: We believe that this objective, simple, cost-effective, and rapid marker can be used in combination with other parameters to predict ICU need to prevent surgical delays due to the lack of a reserved intensive care bed in the ASA 3 geriatric patient group with pertrochanteric fractures, whose intensive care need cannot be clarified, thereby reducing mortality and morbidity.
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    Is there a predictive value of the preoperative neutrophil-lymnhocyte ratio in terms of intensive care need in geriatric patients who underwent pertrochanteric fracture surgery?
    (Turkish Assoc Trauma Emergency Surgery, 2022) Kekec, Ahmet Fevzi; Colak, Tahsin Sami
    BACKGROUND: Pertrochanteric fractures are serious health problem with an ever-increasing prevalence in elderly population. Potential post-operative intensive care need leads to delays in the timing of surgery due to the referral of patients to better equipped hospitals as well as the inability to arrange a reserved intensive care bed. The purpose of this study is to investigate whether pre-operative neutrophil-lymphocyte ratio (NLR) has predictive value in terms of post-operative intensive care need in geriatric patients who underwent surgery following pertrochanteric fractures. METHODS: total of 535 patients aged 65 years and above with hip fractures who presented to the emergency service between 2017 and 2020 were retrospectively screened. Out of 535 patients, 317 patients who met the inclusion and exclusion criteria were included in the study. The screened patient population was divided into two groups as those followed in the post-operative intensive care unit (ICU) and those followed in the orthopedic ward. RESULTS: There were 190 patients (59.9%) who were followed in the orthopedic ward postoperatively and 127 (40.1%) patients followed in the ICU postoperatively. While the mean pre-operative NLR value of all patients was 6.57, the mean pre-operative NLR of the patients who were followed up postoperatively in the orthopedic ward was 5.85, and the mean NLR of those who were followed up in the ICU was 7.65. It was found that the admission NLR values of the ICU group patients were significantly higher compared to those of the orthopedic ward group (p<0.001) and also the cutoff value of NLR was calculated as 6.14. CONCLUSION: We believe that this objective, simple, cost-effective, and rapid marker can be used in combination with other parameters to predict ICU need to prevent surgical delays due to the lack of a reserved intensive care bed in the ASA 3 geriatric patient group with pertrochanteric fractures, whose intensive care need cannot be clarified, thereby reducing mortality and morbidity.
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    Is vitamin D level related to bilateral lateral epicondylitis?
    (Bayrakol Medical Publisher, 2023) Yaka, Haluk; Yilmaz, Cumali; Ruzgar, Hasan; Colak, Tahsin Sami; Kekec, Ahmet Fevzi; Ozer, Mustafa
    Aim: This study aimed to examine the relationship between unilateral lateral epicondylitis (ULE), bilateral lateral epicondylitis (BLE), and vitamin D levels. Material and Methods: Between January 2016 and January 2021, 112 ULE patients (67 men, 45 women, mean age 45.55 +/- 10.75 years), 90 BLE patients (47 men, 43 women, mean age 44.93 +/- 9.76 years), and 134 patients determined as the control group (47 men, 43 women, mean age 44.93 +/- 9.76 years) were included in the study. The three groups were compared in terms of vitamin D levels. Results: The mean vitamin D level was 24.87 +/- 8.45 ng/ml in the control group, 16.67 +/- 8.08 ng/ml in the ULE group, and 12.2 +/- 5.71ng/ml in the BLE group. There was a significant difference in vitamin D levels between the control and ULE group, the control and BLE group, and the ULE and BLE group (p<0.001, p<0.001, p=0.014, respectively). Discussion: Vitamin D levels of patients with bilateral lateral epicondylitis were significantly lower than those with unilateral lateral epicondylitis. This study shows that low vitamin D may be one of the etiological factors of lateral epicondylitis and may cause bilateral lateral epicondylitis at lower values.
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    Preliminary results of a new intercalary modular endoprosthesis for the management of diaphyseal bone metastases
    (Turkish Joint Diseases Foundation, 2021) Buyukdogan, Kadir; Goker, Barlas; Tokgozoglu, Mazhar; Inan, Ulukan; Ozkan, Korhan; Colak, Tahsin Sami; Aslan, Lercan
    Objectives: This study aims to evaluate functional outcomes of patients and to analyze complication rates of modular intercalary endoprosthetic reconstruction after resection of metastatic diaphyseal bone lesions. Patients and methods: Between December 2017 and February 2020, 22 patients (15 males, 7 females; median age: 64.2 years; range, 49 to 91) who underwent reconstruction with modular intercalary endoprostheses for metastatic bone tumors at five different centers were retrospectively analyzed. Age, sex, diagnosis, follow-up duration, previous treatments of patients, and resection lengths were recorded. The Musculoskeletal Tumor Society Scores (MSTS) were used to assess functional status of available patients at the final follow-up. Failures were categorized according to the Henderson classification. Results: Locations of the resected tumors included 10 humeri (45.5%), five tibiae (22.7%), and seven femurs (31.8%). The length of the resected tissues ranged from 35 mm to 180 mm. Seven patients (31.8%) died of disease, and one patient died of pneumonia within follow-up period. The functional outcomes of surviving patients were satisfying with a median MSTS score of 86.9% (range, 70 to 100%) at a median follow-up of 17 months (range, 8 to 26). There were two cases of type II (9%), one cases of type IIIa (4.5%), two cases of type IIIb (9%), and one case of type IV (4.5%) failure. Complications were most commonly observed in tibial reconstructions. Conclusion: The good short-term functional results were achieved in surviving patients. Uncomplicated patients were able to perform daily living activities without limitations. The overall rate of complications was relatively low and, among them, mechanical problems were the most commonly encountered problems.
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    Results of treatment for acute and chronic extensor pollicis longus tendon ruptures
    (Bayrakol Medical Publisher, 2022) Atilgan, Numan; Duman, Numan; Colak, Tahsin Sami; Demiryurek, Mehmet
    Aim: In this study, we aimed to observe the results of primary tendon repair in acute EPL tendon ruptures and the results of EIP tendon transfer for chronic EPL tendon ruptures. Material and Methods: The study included patients diagnosed and operated for EPL tendon rupture and followed-up in our clinic between January 2012 and December 2020. Patients were separated into two groups according to the surgical procedure. Group A consisted of 13 patients who had EIP tendon transfer, and group B consisted of 18 patients who underwent primary EPL tendon repair. Preoperative and postoperative functional results of the groups were compared. Results: Group A had EIP tendon transfer surgery; ten patients were male (76.9%), and three were female (23.1%). The injury was on the right side in 69.2% of the patients and on the left side in 30.8% of the patients. All patients in group B had primary tendon repair. In group B, 14 patients (77.8%) were males, and four were female (22.2%). The mean q DASH score was 66.53110.99 for group A and 55.66:7.78 for group B. Postoperative q DASH score was 22.76 for group A, and 11.10 for group B. The joint range of motion was similar in both groups. Discussion: In acute EPL tendon ruptures, primary tendon repair is the first treatment to be chosen, while in chronic EPL tendon ruptures, EIP tendon transfer may be the first treatment option given our clinical results.
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    Which part of the blood in the knee joint is responsible for its detrimental effects? (An experimental study on the knee joint in rabbits)
    (Wiley, 2022) Colak, Tahsin Sami; Bicer, Elcil Kaya; Kucuk, Levent; Doganavsargil, Basak; Sezak, Murat; Aydogdu, Semih
    Aim This study aims to determine the potential causative elements which are responsible for the cartilage damage in case of frequent intra-articular bleeding and to evaluate the effects of intra-articular free iron and chelation of iron in the knee joint. Methods Thirty-five New Zealand rabbits were randomly divided into five groups according to substances injected into their knee joints. Plasma (group I) and cellular components (group II) of the blood harvested from the rabbits, iron (ferric hydroxide sucrose) (group III), iron&chelator (group IV) and only chelator (deferoxamine mesylate) (group V) were injected into their right knees three times a week for 12 weeks. The joint surface was examined histologically according to the classification system modified from Colombo et al. The changes in the synovial tissue were evaluated according to the scoring system modified from Madhok et al. Results Cartilage and synovial abnormality scores were significantly higher in all study groups when compared to their own controls (p < 0.0001). Cartilage scores of groups I and V were significantly lower when compared to groups III and IV (p = 0.002 for group I and p = 0.003 for group V). Synovial abnormality score of group I was significantly lower than scores of groups III and IV (p = 0.001); and of group V lower than groups III and IV (p = 0.003 and p = 0.001, respectively). Conclusions All substances tested in this study caused a certain amount of damage in the cartilage tissue and led to synovial abnormalities. Both iron and iron&chelator caused more damage in the cartilage and led to more advanced synovial changes when compared to the plasma component of blood and chelator itself. Influence of iron and iron&chelators were found to be similar showing that chelation was inadequate in antagonizing the detrimental effects of iron.