Analysis of the Effect of Human Type I Collagen-Derived Peptide on Bone Regenerative Capacity and Comparison with Various Collagen Materials In Vivo.

: Autologous bone grafting is the first choice for reconstructive surgery in bone defects due to trauma or malignant tumors. However, there is an increasing demand for minimally invasive alternatives involving bone regeneration using artificial materials. Biomimetic materials that replicate the body's microscopic structure, such as Cellnest, are gaining attention.

Socioeconomic Inequity in Access to Medical and Long-Term Care Among Older People.

Background: Ensuring equitable access to medical and long-term care (LTC) is critical to enable older people to maintain their health and well-being even after they undergo a decline in their intrinsic capacity.

Methods: We used data from five waves of the National Survey of the Japanese Elderly, conducted between 2002 and 2021, to assess gradients in access to medical care and LTC by income and education among Japanese individuals aged 60 years and above. Specifically, we assessed self-reported unmet needs for medical care and LTC, and public LTC use, and estimated the concentration indices (CI) to evaluate the degree of inequality and inequity.

Quantitative Evaluation of 99mTc-Galactosyl Human Serum Albumin SPECT/CT for the Prediction of Posthepatectomy Liver Failure.

Purpose: To evaluate the predictive ability of 99mTc-galactosyl human serum albumin SPECT/CT quantitative parameters for posthepatectomy liver failure (PHLF).

Methods: Sixty-eight patients who underwent 99mTc-galactosyl human serum albumin scintigraphy as a preoperative examination for hepatectomy between July 2021 and December 2023 were prospectively evaluated. The patients were divided into PHLF and non-PHLF groups.

Objective surgical skill assessment based on automatic recognition of dissection and exposure times in robot-assisted radical prostatectomy.

Purpose: Assessing surgical skills is vital for training surgeons, but creating objective, automated evaluation systems is challenging, especially in robotic surgery. Surgical procedures generally involve dissection and exposure (D/E), and their duration and proportion can be used for skill assessment. This study aimed to develop an AI model to acquire D/E parameters in robot-assisted radical prostatectomy (RARP) and verify if these parameters could distinguish between novice and expert surgeons.

Thoracic Endovascular Aortic Repair for Perigraft Seroma After Ascending Aorta Replacement.

We report on a successful thoracic endovascular aortic repair for perigraft seroma (PGS) after ascending aorta replacement (AAR). An 82-year-old man underwent AAR. Two years after the operation, computed tomography showed a 75-mm PGS around the ascending aorta.