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This study aims to evaluate the effectiveness of silver ion doped calcium phosphate-based ceramic nano powder-coated titanium pins in preventing bacterial colonization.

A total of 66 titanium pins were divided into three groups of 22 implants. https://www.selleckchem.com/products/iwr-1-endo.html The first group was coated with silver ion doped calcium phosphate-based ceramic powder by using electrospray method. The second group was coated with pure hydroxyapatite (HA), and the remaining pins were used without any coating. The remaining 22 pins were used without any coating. Staphylococcus epidermidis clinical isolate was used for the study. Each pin was placed in 1x10
CFU/mL bacterial suspension containing tube and at 24 h quantitative culture of bacteria on the broth and on the pins were performed. Free silver ions were determined by atomic absorption method. The antibacterial culture tests were repeated on Day 2 and Weeks 2, 4, 6, and 8.

Bacterial growth was statistically higher in broth containing uncoated pins, compared to broth media containing silver ion doped HA-coated, and pure HA-coated pins at 24 h (p=0.036 and p=0.009, respectively). The release of bacteria from silver doped HA-coated pins was statistically less, compared to pure HA-coated pins and uncoated pins (p=0.039 and p=0.002, respectively). No significant differences were observed between the HA-coated and uncoated pin groups. Minimum inhibitory concentration levels for silver ion doped powder was 8 μg/mL for coagulase-negative Staphylococcus. No free silver ions were detected in the broth media.

Silver ion doped nano size calcium phosphate-based powder-coated titanium pins reduced the bacterial colonization significantly. Using silver ion doped materials in the body can be a good option to prevent from implant related infections.
Silver ion doped nano size calcium phosphate-based powder-coated titanium pins reduced the bacterial colonization significantly. Using silver ion doped materials in the body can be a good option to prevent from implant related infections.
This study aims to investigate whether variables such as body mass index (BMI), size of the cement with screw augmentation area (CSA), distance between the base of tibial plate and the deepest point of the defect area (DPDA) may cause any mechanical problems leading to deterioration in tibiofemoral alignment or impact clinical outcomes when the surgeon utilizes bone cement with screw augmentation (BCSA) technique in the treatment of moderate non-contained tibial bone defects in total knee arthroplasty (TKA).

This cross-sectional study, conducted between March 2018 and March 2019, included 37 knees of 28 patients (4 males, 24 females; mean age 71.3±8.9; range, 55 to 86 years) with moderate tibial bone defects requiring treatment with BCSA during primary TKA. Patients with BMI >30 were scored with Hospital for Special Surgery (HSS) score for clinical outcomes; besides, CSA, DPDA, and tibiofemoral alignment were calculated on plain X-rays.

Mean BMI was 34.1±5.7 (range, 24.9 to 45.9). Patients had a mean follow-up period of 44±13.9 (range, 28 to 75) months. Mean postoperative CSA was 98.2±35.3 (range, 42 to 180) mm2 and DPDA was 7.4±2.6 (range, 3.5 to 12.9) mm. Mean HSS score at last follow-up was 88.0±7.5 (range, 71 to 97).

Bone cement with screw augmentation technique was associated with satisfactory clinical outcomes and tibiofemoral alignment was not significantly deviated in patients with high BMI. We determined that neither the depth of DPDA nor the size of CSA had any correlation with clinical outcomes.
Bone cement with screw augmentation technique was associated with satisfactory clinical outcomes and tibiofemoral alignment was not significantly deviated in patients with high BMI. We determined that neither the depth of DPDA nor the size of CSA had any correlation with clinical outcomes.
The aim of this study was to compare the smartphone- based gait analysis data of patients who underwent total knee arthroplasty (TKA) and unicompartmental knee arthroplasty (UKA).

Between January 2016 and April 2019, a total of 51 patients (3 males, 48 females; mean age 60.92 years; range, 51 to 70 years) who were operated with UKA or TKA in our clinic were retrospectively analyzed. The patients were divided into two groups according to the type of procedure as the UKA group (n=17) and unilateral TKA group (n=34). Gait analysis was made via a smartphone application (Gait Analyzer software version 0.9.95.0) with data acquired from the accelerometer of the smartphone. This analysis was performed using data collected from the Acceleration Sensor LSM6DSO into the Samsung Galaxy Note 10 Plus phone. Gait velocity, step time, step length, cadence, step time symmetry, step length symmetry, and vertical COM (vert-COM) parameters were measured.

There were no statistically significant differences between the groups in respect of age, sex, body mass index, operated side, and follow-up duration. Compared to the TKA group, the UKA patients showed a better gait pattern in gait velocity (p=0.03), step time symmetry (p=0.005), and step length symmetry (p=0.024). No significant difference was detected in step time (p=0.807), step length (p=0.302), cadence (p=0.727) and vert-COM parameters (p=0.608).

The gait of UKA patients is closer to the physiological pattern with a better gait velocity, step time symmetry, and step length symmetry than TKA patients. The surgical treatment option of UKA for knee medial compartment osteoarthritis leads to a better gait pattern than TKA.
The gait of UKA patients is closer to the physiological pattern with a better gait velocity, step time symmetry, and step length symmetry than TKA patients. The surgical treatment option of UKA for knee medial compartment osteoarthritis leads to a better gait pattern than TKA.
This study aims to investigate if the use of intravenous (IV) tranexamic acid (TXA) during one-stage exchange for periprosthetic joint infection (PJI) of the hip that necessitates an extensive debridement is associated with decreased blood loss, if the rate of blood transfusion that may lead to side effects can be lowered with IV TXA, and if there is any difference regarding the occurrence of postoperative venous thromboembolism (VTE).

We retrospectively reviewed patients who underwent one-stage exchange for PJI of the hip with perioperative IV administration of TXA (n=163; 90 males, 73 females; mean age 68±10.3; range, 25 to 90 years) between January 2015 and December 2016 and compared them to another group (n=190; 106 males, 84 females; mean age 71±10.1; range, 39 to 92 years) who underwent one-stage exchange for PJI of the hip without perioperative IV administration of TXA between January 2006 and December 2012. Blood loss, transfusion rates, amount of transfused blood, and occurrence of VTE complications were observed.
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