What are the risk factors and microorganism profiles of periprosthetic hip joint infections with a concomitant sinus tract?

Introduction: A sinus tract, an abnormal channel between the skin and joint, is a major criterion that proves the presence of an underlying periprosthetic joint infection. Its presence not only increases failure rates but also leads to poor outcomes. Despite its clinical relevance, little is known about risk factors and underlying microorganism profiles.

Does the duration of antibiotic treatment following one-stage treatment of infected total knee arthroplasty influence the eradication rate? A systematic review.

Purpose: The aim of this study was to perform a systematic review of the current literature to elucidate the optimal duration of systemic antibiotic therapy following one-stage revision TKA in the setting of PJI.

Methods: We conducted an electronic search in four databases including Medline (PubMed), Scopus, Web of Science, and Cochrane Central Register of Controlled Trials without any publication date, language or study design filter on October 1, 2022. The search strategy adhered to PRISMA guidelines and consisted of four main keywords categories which were knee arthroplasty or knee prosthesis, infection and one-stage/single-stage revision.

What Factors Influence In-Hospital Mortality Following Aseptic Revision Total Hip Arthroplasty? A Single-Center Analysis of 13,203 Patients.

Background: Revision total hip arthroplasty (rTHA) is associated with an extended surgical period, an increased hospitalization period, expanded blood loss, and high mortality rates. The purpose of the present study was to assess the risk factors that contribute to in-hospital mortality following aseptic rTHA.

Methods: We performed a retrospective examination of the medical records of all patients who underwent elective rTHA surgery at our tertiary referral arthroplasty center between March 1996 and March 2019.

Risk Factors and Microbiological Profile of Knee Periprosthetic Joint Infections With Sinus Tract.

Background: A sinus tract is an abnormal channel that communicates between the skin and the joint, and meets one of the major criteria that is diagnostic of periprosthetic joint infection (PJI). The purpose of this study was to compare the risk factors and the microorganism profile of PJI of the knee with an overlying sinus tract to PJI without a sinus tract.

Methods: This was a retrospective case-control study of PJI following total knee arthroplasty with and without the presence of an overlying sinus tract from 1996 to 2020.

Increased Involvement of Staphylococcus epidermidis in the Rise of Polymicrobial Periprosthetic Joint Infections.

Background: In this study, we aimed to analyze the temporal distribution of polymicrobial periprosthetic joint infections (PJIs), while also evaluating the patient risk factors associated with these infections following total joint arthroplasty at our institution across 2 distinct periods.

Method: This retrospective cross-sectional study evaluated 259 patients who had knee or hip PJI from 2001 to 2006 and 2018 to 2022. A PJI was diagnosed using the 2018 International Consensus Meeting criteria.

Indirect Coronal Reduction Technique Using a Volar Locking Plate in Distal Radius Fractures: A Case Series.

This is a retrospective case series of patients with distal radius fractures treated with an indirect coronal reduction technique previously described by the senior author using volar locking plates. Seventeen distal radius fractures underwent treatment at a Level I Trauma Center and were retrospectively reviewed for anatomic alignment, surgical complications, and wrist range of motion in the global period. Near-anatomic restoration was achieved with the average radial inclination, radial height, and volar tilt measured as 23.

Two-Dimensional Versus Three-Dimensional Preoperative Planning in Total Hip Arthroplasty.

Background: Preoperative planning in total hip arthroplasty (THA) involves utilizing radiographs or advanced imaging modalities, including computerized tomography scans, for precise prediction of implant sizing and positioning. This study aimed to compare 3-dimensional (3D) versus 2-dimensional (2D) preoperative planning in primary THA with respect to key surgical metrics, including restoration of the horizontal and vertical center of rotation (COR), combined offset, and leg length.

Methods: This study included 60 patients undergoing primary THA for symptomatic hip osteoarthritis (OA), randomly allocated to either robotic arm-assisted or conventional THA.

Central cone design demonstrates greater micromotion compared to keel design in cementless tibial baseplates: A biomechanical analysis.

Purpose: The purpose of this study was to compare micromotion of two new cementless tibial baseplates to a cementless design with well-published clinical success.

Methods: Three cementless tibial baseplate designs (fixed-bearing [FB] with keel and cruciform pegs, rotating-platform with porous central cone and pegs, FB with cruciform keel and scalloped pegs) were evaluated on sawbone models. Loading was applied to the baseplate at a rate of 1 Hz for 10,000 cycles, which represents 6-8 weeks of stair descent.

Minimum 15-Year Survival of a Biconvex Inlay Patellar Component in Primary Total Knee Arthroplasty: An Analysis of 2,530 Total Knee Arthroplasties From a Single Institution.

Background: Routine patellar resurfacing during primary total knee arthroplasty (TKA) remains controversial. To our knowledge, there are no studies reporting the long-term performance of a cemented biconvex all-polyethylene inlay component implanted at the time of primary TKA. The purpose of this study was to examine the 15-year survivorship and long-term clinical outcomes of this biconvex inlay patella used at our institution.

How reliable is the soft tissue radiological knee index in predicting superficial surgical site infection following total knee arthroplasty?

Introduction: The purpose of this study was to evaluate the association between the Soft Tissue Radiological Knee (SToRK) Index and the risk of developing a superficial surgical site infection (SSSI) following primary total knee arthroplasty (TKA).

Methods: The SToRK Index was measured using calibrated long leg radiographs (LLR) in 174 patients undergoing TKA.

Results: A moderate correlation was found between the SToRK Index and body mass index (BMI) (r=0.

Survival analysis of 3D printed acetabular implants in revision total hip arthroplasty associated with severe pelvic discontinuities.

Background: Surgeons still face difficulties when performing aseptic acetabular revision on patients with extensive defects. Advances in three-dimensional printing technology (3DP) have afforded to the surgeons to create a patient-specific implant matching the morphology and topography of the defect.

Objective: The aim of the current research was to determine the survivorship in the treatment of acetabular bone defects with pelvic discontinuity (PD).

Intramedullary Positive Tissue Culture Increases the Risk of Reinfection Following One-Stage Septic Revision Total Knee Arthroplasty.

Background: Intraoperative acquisition of representative tissue samples is essential during revision arthroplasty of the infected total knee arthroplasty (TKA). While the number of intraoperative tissue samples needed to identify the organism is well described in the literature, there is still a paucity of evidence regarding the location of positive intraoperative samples and their correlation to postoperative outcomes.

Methods: There were forty-two patients who had septic failure following one-stage revision TKA for periprosthetic joint infection who were identified between January 2009 and December 2017.

Geriatric Distal Femur Fractures Treated with Arthroplasty Are Associated with Lower Mortality but Greater Costs Compared with Open Reduction and Internal Fixation at 30 Days.

Distal femur fractures (DFFs) are common injuries with significant morbidity. Surgical options include open reduction and internal fixation (ORIF) with plates and/or intramedullary devices or a distal femur endoprosthesis (distal femur replacement [DFR]). A paucity of studies exist that compare the two modalities.

How Reliable Is the Absolute Synovial Polymorphonuclear Neutrophil Cell Count in Diagnosing Periprosthetic Joint Infection?

Background: Diagnosing periprosthetic joint infection (PJI) is a daunting task for even the most experienced orthopedic surgeons, as there is currently no test available that can provide absolute accuracy. Utilizing an established synovial indicator for detecting PJI without incurring additional costs or resources would be the optimal solution for predicting the presence of infection. Therefore, we hypothesized that synovial absolute neutrophil count (ANC) would improve the diagnostic accuracy of chronic knee and hip PJI.

Post-operative Outcomes and Survivorship for Shoulder Arthroplasty following Glenohumeral Tumor Resection.

A paucity of data exists for post-operative complications and survivorship in patients undergoing resection arthroplasty procedures for treatment of glenohumeral tumors. This study investigates patient and tumor characteristics, 90-day and long-term post-operative complications, and overall survivorship following glenohumeral tumor resection arthroplasty procedures. This single-center retrospective review identified 13 patients, with mean age of 51.

Comparison of Lateral versus Medial Entry Femoral Traction Pin Complication Rates.

Distal femoral skeletal traction is a common procedure for the stabilization of fractures of the pelvis, acetabulum, and femur following trauma. Femoral traction pins are traditionally inserted via medial-to-lateral (MTL) entry to accurately direct the pin away from the medial neurovascular bundle. Alternatively, cadaveric studies have demonstrated low risk to the neurovascular bundle using a lateral-to-medial (LTM) approach.

An Innovative Seven-year Physician Scientist Residency Training Program That Addresses the Shortage of Academic Surgeons.

Due to the declining number of scientifically trained physicians and increasing demand for high-quality literature, our institution pioneered a seven-year Physician Scientist Training Program (PSTP) to provide research-oriented residents the knowledge and skills for a successful academic career. The present study sought to identify orthopaedic surgeons with MD/PhD degrees, residency programs with dedicated research tracks, and to assess the effectiveness of the novel seven-year program in training prospective academic orthopaedic surgeons. Surgeons with MD/PhD degrees account for 2.