Late Periprosthetic Joint Infection After a Total Hip Arthroplasty Caused by Peptoniphilus Species: A Case Report and Literature Review.

In this report, we present the clinical course of a 65-year-old woman who underwent a two-stage revision total hip arthroplasty (THA) for a late periprosthetic joint infection (PJI) caused by species ( sp.). Furthermore, we conducted a literature review to contribute to the growing body of evidence regarding PJI caused by sp.

Comparison of the Long-Term Clinical Results of Resurfacing Hip Arthroplasty for Japanese Patients Who Have Osteonecrosis versus Those Who Have Other Diagnoses.

Background: This study investigated the long-term (mean 13.5 years) clinical results of resurfacing hip arthroplasty (RHA) in Japanese patients who had osteonecrosis (ON) and compared the results with those of patients who had other diagnoses.

Methods: A consecutive series of 65 hips (50 men and 15 women), with 30 in the ON group and 35 hips in the nonosteonecrosis (non-ON) group, were included.

Influence of stem length on sagittal alignment in total hip arthroplasty: a comparison between short and standard stems.

Background: Total hip arthroplasty (THA), a critical surgery for hip joint pain relief and mobility restoration, involves careful consideration of various factors, including stem length. Short stems are often chosen for their potential to reduce tissue damage and thigh pain. Precise alignment is necessary to alleviate complications such as stem loosening and fractures.

Is the natural course of perioperative laboratory testing effective in identifying wound-related complications following primary total hip arthroplasty?

Introduction: Previous study did not clarify the correlation between the natural course of perioperative blood tests and occurrence of wound-related complications, including SSI, PJI, and delayed wound healing. This study aimed to investigate whether perioperative laboratory test is effective in identifying wound-related complications after THA.

Materials And Methods: This retrospective, single-institutional study enrolled 1072 patients who underwent primary THAs.

Do elevated preoperative serum inflammatory markers influence surgical site or periprosthetic joint infections following primary total hip arthroplasty?

Background: We aimed to determine whether elevated preoperative serum inflammatory markers influence surgical site infections (SSIs) and periprosthetic joint infections (PJIs) after primary total hip arthroplasty (THA).

Methods: In this retrospective single-institution study, 1115 patients who underwent primary THA were enrolled. Cases of SSI/PJI were identified.

Chondroprotective Effects of Chondrogenic Differentiated Adipose-Derived Mesenchymal Stem Cells Sheet on Degenerated Articular Cartilage in an Experimental Rabbit Model.

Adipose-derived stem cells (ADSCs) have been studied for many years as a therapeutic option for osteoarthritis (OA); however, their efficacy remains insufficient. Since platelet-rich plasma (PRP) induces chondrogenic differentiation in ADSCs and the formation of a sheet structure by ascorbic acid can increase the number of viable cells, we hypothesized that the injection of chondrogenic cell sheets combined with the effects of PRP and ascorbic acid may hinder the progression of OA. The effects of induction of differentiation by PRP and formation of sheet structure by ascorbic acid on changes in chondrocyte markers (collagen II, aggrecan, Sox9) in ADSCs were evaluated.

Bilateral simultaneous asymmetric hip fracture without major trauma in an elderly patient: a case report.

Background: Simultaneous bilateral hip fractures without major trauma in the elderly are rare and usually symmetrical. To the best of our knowledge, only two cases of bilateral simultaneous asymmetric hip fracture in the elderly without major trauma have been reported.

Case Presentation: We present the case of a 90-year-old Japanese man with simultaneous bilateral asymmetric hip fractures with trochanteric fracture on the right side and greater trochanteric fracture on the left side.