Predictive factors for discharge destination after total hip arthroplasty.

Background: This study aimed to investigate factors affecting discharge to an inpatient rehabilitation facility or home following total hip arthroplasty, using a clinical pathway in Japan.

Methods: Five hundred hips with osteoarthritis who underwent unilateral total hip arthroplasty at our institution, with no deviation from the pathway, were included in this retrospective study. The variables were examined by univariate analysis.

Treatment strategy for surgical site infection post posterior lumbar interbody fusion: A retrospective study.

Introduction: Posterior lumbar interbody fusion (PLIF) has been widely used to treat various degenerative spinal diseases. However, surgical site infection (SSI) post-PLIF is often difficult to cure. This study aimed to clarify the difference in clinical course due to the causative organism and develop a treatment strategy for SSI post-PLIF.

Challenges and responses of elective orthopaedic surgery during the second wave of COVID-19.

Background: Elective orthopaedic surgery has been severely curtailed because of coronavirus disease, 2019. There is scant scientific evidence to guide surgeons in assessing the protocols that must be implemented before resuming elective orthopaedic surgery safely after the second wave of the coronavirus disease, 2019.

Methods: A retrospective review of elective orthopaedic surgeries performed between May 15, 2020, and November 20, 2020, was conducted.

Total hip arthroplasty via an anterolateral supine approach for obese patients increases the risk of greater trochanteric fracture.

Purpose: The aim of this study was to evaluate the outcomes and early complications of obese patients who underwent total hip arthroplasty for osteoarthritis via an anterolateral approach in the supine position (ALS-THA) and compare these outcome with of a matched control group of non-obese patients.

Patients And Methods: Thirty-one hips in 28 patients with obesity (BMI ≧ 30 kg/m) were included in this study. As a control group, 31 hips of 31 patients with a normal weight (BMI between 20 and 25 kg/m) were matched based on age, sex, and laterality.

Impacts of nicorandil on infarct myocardium in comparison with nitrate: assessed by cardiac magnetic resonance imaging.

In this pilot study, we compared the infarct and edema size in acute myocardial infarction (MI) patients treated by nicorandil with those treated by nitrate, using cardiac magnetic resonance (CMR) imaging. Fifty-two acute MI patients who underwent emergency percutaneous coronary intervention (PCI) were enrolled, and were assigned to receive nicorandil or nitrate at random just before reperfusion. For the assessment of infarct and edema areas, short-axis delayed enhancement (DE) and T2-weight (T2w) CMR images were acquired 6.

Long-delayed expression of the immediate early gene Arc/Arg3.1 refines neuronal circuits to perpetuate fear memory.

Fear memories typically persist for long time periods, and persistent fear memories contribute to post-traumatic stress disorder. However, little is known about the cellular and synaptic mechanisms that perpetuate long-term memories. Here, we find that mouse hippocampal CA1 neurons exhibit biphasic Arc (also known as Arg3.

Diagnostic usefulness of the oedema-infarct ratio to differentiate acute from chronic myocardial damage using magnetic resonance imaging.

Objectives: To differentiate acute from chronic damage to the myocardium in patients with myocardial infarction (MI) using DE and T2w MR.

Methods: Short-axis T2w and DE MR images were acquired twice after the onset of MI in 36 patients who successfully underwent emergency coronary revascularisation. The areas of infarct and oedema were measured.

Hemophagocytic syndrome in a patient with rheumatoid arthritis.

A 76-year-old man with rheumatoid arthritis, who had been treated with oral prednisolone and methotrexate, presented with high fever and generalized fatigability. Laboratory data demonstrated marked pancytopenia, which we first regarded as a side effect of methotrexate, and leucovorin was administered with granulocyte-colony stimulating factor and transfusions. Because no recovery was recognized, however, bone marrow aspiration was performed, by which hemophagocytic syndrome was diagnosed.

[A case of perforating rectal ulcer with retroperitoneal emphysema treated with conservative medical management].

A 75-year-old woman complaining of sudden lower abdominal pain, fever, and bloody stool was admitted to the hospital. Abdominal CT scan showed retroperitoneal emphysema ranging from the retrorectal space to the posterior region of the kidney, and a stool-like shadow around the rectum. It suggested rectal ulcer and conservative management was started since the general condition was not critical and abdominal pain was localized.

Multistage chemical etching for high-precision frequency adjustment in ultrahigh-frequency fundamental quartz resonators.

Chemical etching to precisely adjust and to make uniform the thicknesses of vibrating areas of multiple resonators in a single wafer was applied to inverted-mesa quartz resonators exciting an ultrahigh-frequency fundamental thickness vibration. The process consisted of five stages, combining high-rate etching for high productivity and low-rate etching for high-precision adjustment. By using this process, the resonance frequencies of 41 resonators in the single wafer were adjusted to 620 +/- 1.