Introduction: Pilonidal sinus is a disease affecting individuals at young age. Numerous surgical methods have been described in the treatment of pilonidal sinus disease. Currently, there is no treatment method providing a rapid recovery with low recurrence risk. Aim: In this study, we aimed to evaluate the results of our patients who underwent Karydakis surgery. Material and methods: Results of 112 patients operated on between 2012 and 2019 were retrospectively evaluated. Only the patients who underwent Karydakis surgery were included in the study. Results: Of all patients, 20 were female and 92 were male. The mean age was 21 years in the female and 20.8 years in the male patients. The mean BMI was 29.6 kg/m2 . The patients were followed up for a mean of 28 months. Postoperative length of stay in hospital was 2.1 days. The complications included wound dehiscence in 10.2%, infection in 3.6%, and bleeding (hematome) in 7.1%. Four patients developed recurrence during follow-up. Conclusions: Karydakis surgery is a preferable surgical technique with low rates of complications and recurrence.
This study investigates the power of variables in a logistic regression model (the efficacy model or (EM)) to explain the match results in the Turkish Men’s Volleyball League (TMVL) and the Turkish Women’s Volleyball League (TWVL) in terms of the players’ positions. The dependent variable was the match result, and the power of the variables libero player efficiency (LPE), setter efficiency (SE), middle blocker efficiency (MBE), outside hitter efficiency (OHE) and universal player efficiency (UPE) were separately investigated for both genders. The EM accurately classified 83.45% of the games won and lost in the TWVL. The sensitivity (proportion of won games classified as won) and specificity (proportion of lost games classified as lost) was 85.03 and 81.88%, respectively. In the TMVL analysis, the classification accuracy, sensitivity and specificity were 78.23, 78.77 and 77.70%, respectively. Moreover, for both genders, the match results were chiefly explained by the SE, MBE, OHE and UPE. The LPE variable could not predict the results in the TWVL.
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