34 research outputs found
Effects on knee kinematics following anterior cruciate ligament repair using semitendinosus and gracilis tendon grafts
No full textSemitendinosus and gracilis tendons are the most commonly used autografts in anterior cruciate ligament (ACL) reconstruction. In this study, we researched the effects of these grafts on knee kinematics. Seventeen patients who had ACL surgery at the GATA Orthopaedics Clinic between 2010 and 2011 were included in this study. The flexion, extension, internal and external rotation of the operated knee and the contralateral healthy knee peak moments were measured and evaluated with Cybex Dynamometer device. Results were evaluated using the paired t-test in SPSS 15.0 and p ≤ 0.05 was considered to be significant. The flexion, extension, internal and external rotation peak moments were decreased in ACL reconstructed knees compared with contralateral healthy knees. Decrease in knee flexion and extension at 60° and 180°/second was found statistically significant compared with the contralateral healthy knee (p < 0.05) in the postoperative first year. Also internal and external rotation of the reconstructed knee declined compared to healthy knee it was found statistically significant. After the use of STG autograft in ACL reconstruction, the knee flexion, extension, internal and external rotation moments decreases. In the postoperative period, rehabilitation programs should be redesigned using this knowledge. Especially in athletes postoperative physical therapy should be applied in meticulously. [Med-Science 2017; 6(2.000): 310-3
Feasibility of diagnosing osteoporosis using routine computed tomography scans for hip fractures: Correlation with histopathological diagnosis of head and neck regions
No full textObjective: The aim of this study was to demonstrate the feasibility of diagnosing osteoporosis through routine computed tomography (CT) by assessing the association between the histopathological assessment of femoral head specimens extracted from patients who underwent surgery for intertrochanteric fractures and the Hounsfield unit (HU) measurements derived from preoperative CT scans.
Methods: Forty-eight patients who presented to our clinic between November 2019 and May 2020 with hip fractures and underwent partial prosthesis fixation were included in this retrospective study. Hounsfield unit measurements were performed on the head and neck regions using dual-energy x-ray absorptiometry (DEXA) and CT scans, respectively. The trabecular ratio per unit area was calculated using the Nikon Imaging Software (NIS-Elements ) program in the pathology laboratory from digitally captured images of the removed head and neck specimens.
Results: The mean HU receiver operating characteristic analysis had a sensitivity of 77% and a specificity of 87%, with a cutoff value of 77.68. There was a moderate correlation between the mean trabecular density and the mean HU of the femoral head (P=0.013, r=0.340). Additionally, there was a significant correlation between the mean HU and the T-score of the head, although this correlation was not found with the maximum–minimum HU. Although there was a significant correlation between trabecular density and mean HU, the correlation coefficient indicated a moderate relationship. This relationship was also observed between the inferior sections of the head and the trabecular density and HU (P=.018). However, no significant correlation was found between the T-score and the trabecular structure of the head (P=.977).
Conclusion: The results of the present study suggest that conventional CT has the potential to serve as a diagnostic tool for osteoporosis and may offer a more precise and accurate method for evaluating the success of intraosseous implants when compared to T-scores without the need for additional tests or procedures.
Cite this article as: Imren Y, Karslioglu B, Dedeoglu SS, Keskin A, Berkay AF, Tekin AC. Feasibility of diagnosing osteoporosis using routine computed tomography scans for hip fractures: Correlation with histopathological diagnosis of head and neck regions. Acta Orthop Traumatol Turc., 2023;57(6):384-388
Current treatment approaches for ankle ligament injuries: what has changed?
No full textBecause of inadequate and unsuccesful management of ALI, undesired chronic disabilities may unluckily be observed. Treatment of these patients should be planned comprehensive and detailed depending on patients diagnosis, injurys severity and stage. Program should not only be focused on to solve edema. An integrated treatment covering injurys acute and subacute period and a comprehensive algorithm including an early rehabilitation program would provide better recovery times. [Med-Science 2017; 6(1.000): 91-5
Responses of Hazelnut Trees to Organic and Conventional Managements in the Dryland
No full textWOS: 000424453400003Hazelnut trees (Corylus avellana L.) give yields without any more reduction under dryland. However, it is not known how plant water status and gas exchanges response to organic management under the dryland. In an attempt to answer this question, such responses, which are leaf water potential (LWP), stomatal conductance (g(s)) and photosynthetically active radiation (PAR) of hazelnut trees, were studied under organic and conventional managements in the dryland conditions. It was also investigated possible effects of those parameters on organic and conventional hazelnut trees vs. SWC and atmospheric stress (i. e., air vapour pressure deficit-VPD). Organic hazelnut trees had slightly higher ET and yield, and lower SWC than conventional hazelnut trees. However, generally, slightly higher LWP and g(s) values were obtained for conventional hazelnut trees while the value of VPD was higher in organic hazelnut orchards. LWP, PAR, g(s) response to SWC and VPD and relationships between each others were generally imperceptibly higher in organic hazelnut trees than conventional hazelnut trees but no stronger responses and relationships. Plant canopy measurements were mostly parallel with the results obtained values of ET, yield, SWC and VPD. Precipitation during the year influenced both hazelnut orchards managements to have higher yield and keep life alive. However, it could be emphasized that hazelnut trees under organic and conventional hazelnut managements required supplement irrigation to avoid summer water stress, and for providing fruit fulling and accumulation of reserves for the following year. Finally, it can be conclude that organic farming is a good alternative for hazelnut orchards in dryland.DUBAP (Duzce University Scientific Research Projects) [2013.23.01.131, 2013.23.01.196]The author thanks DUBAP (Duzce University Scientific Research Projects: 2013.23.01.131 and 2013.23.01.196) for its financial support of this study. Furthermore, the author thanks Mrs. Yasemin KARSLIOGLU-who is owner of Karslioglu Farm and Mr. Rahmi AYDIN-who is owner of RALILA Gida Company for opening their farms to search of these studies
Quantification of Leaf Water Potential, Stomatal Conductance and Photosynthetically Active Radiation in Rainfed Hazelnut
No full textWOS: 000388601900010Hazelnut (Corylus avellana L.) is mostly grown in rainfed condition in Turkey as well as other some countries in the world without more yield reduction. However, there is not enough information about how to give yield without more reduction in rainfed hazelnut orchard. In an endeavor to search this question, quantifications of leaf water potential (LWP), stomatal conductance (g(s)) and photosynthetically active radiation (PAR) of hazelnut tree were investigated in rainfed hazelnut orchard in the summer of 2013 and 2014. Additionally, possible effects of those quantifications on rainfed hazelnut trees vs. soil water content (SWC) was investigated. Results of this study exhibited that yearly ET (evapotranspiration) of rainfed hazelnut trees was higher in 2014 than 2013 even though seasonal ET of rainfed hazelnut trees was higher in 2013 than 2014. Hence, yield, LWP and g(s) were higher in 2014 than 2013 but PAR and SWC (even all the study season) were mostly higher in 2013 than 2014. Moreover, relationships of LWP, g(s) and PAR and responses of LWP, g(s) and PAR to SWC were non stronger. These differences could be attributed differences of climate variability such as precipitation and temperature during the observed period throughout the season in the studied years. However, rainfed hazelnut trees may be required supplement irrigation in dry summer, such as year of 2013, to avoid summer water stress. Finally, it can be concluded that hazelnut trees can be grown well and give normal yield for the areas which have about 950 mm precipitation.DUBAP (Duzce University Scientific Research Projects) [2013.23.01.131, 2013.23.01.196]The author thanks DUBAP (Duzce University Scientific Research Projects: 2013.23.01.131 and 2013.23.01.196) for its financial support of this study. Furthermore, the author thanks Mrs. Yasemin Karslioglu - who is the owner of Karslioglu Farm for opening their farms to search of these studies
