The Mid- and Long-Term Consequences After Surgically Treated Lisfranc Injuries: A Case Series and Review of the Literature.

Background Long-term follow-up data are difficult to collect, especially in uncommon foot injuries. Therefore, it is rare to find publications that include patient-reported outcomes. Therefore, a case series and systematic review are provided to evaluate mid- and long-term outcomes.

A novel concept of an acoustic ultrasound wearable for early detection of implant failure.

Mechanical failure of medical implants, especially in orthopedic poses a significant burden to the patients and healthcare system. The majority of the implant failures are diagnosed at very late stages and are of mechanical causes. This makes the diagnosis and screening of implant failure very challenging.

Can surface landmarks help us identify the gibson interval during surgical hip dislocation: a study of 617 hips.

Introduction: The Gibson approach, used in hip-preserving surgery, is intermuscular and develops the space anteriorly to the gluteus maximus. Reliable anatomical landmarks for the development of this interval do not exist, but the interval is marked by perforating vessels (PV) of the inferior gluteal artery. The aim of this study was to provide reference values for the relationship between palpable anatomical landmarks on the femur/pelvis and the anterior border of the gluteus maximus using CT scans of the proximal femur.

Validation of CLASS MRI for personalized ACL footprints identification.

Purpose: In modern anterior cruciate ligament (ACL) surgery, the focus is usually on anatomical reconstruction to restore the natural kinematics of the knee. The individual optimal positioning of the ACL footprints (FPs) in primary surgery is still controversial and, especially in revision surgery, difficult to realize surgically. In this regard, a new MRI-based sequence, the Compressed Lateral and anteroposterior Anatomic Systematic Sequence (CLASS) with marked femoral and tibial FPs as a template, could help.

Temporal validation of the SORG 90-Day and 1-Year machine learning algorithms for survival of patients with spinal metastatic disease.

Purpose: The SORG-MLA was developed to predict 90-day and 1-year postoperative survival in patients with spinal metastatic disease who underwent surgery between 2000 and 2016. Due to the constant changes in treatment methods, it is essential to perform temporal validation with a recent patient population. Therefore, the purpose of this study was to validate the Skeletal Oncology Research Group machine learning algorithms (SORG-MLA) using a contemporary patient cohort.

Total Hip Surgical Approach Efficiency Outside of Surgical Time in the Ambulatory Surgical Center.

Background: Demand for total hip arthroplasty (THA) in ambulatory surgery centers (ASCs) is rapidly increasing. Increased efficiency is crucial in ASCs to manage this rising demand, particularly considering different surgical approaches and their varying time requirements. Optimizing efficiency can help meet the demand while ensuring safe and timely same-day discharge (SDD).

The 2024 American Orthopaedic Association-Japanese Orthopaedic Association Traveling Fellowship.

In 1992, the American Orthopaedic Association-Japanese Orthopaedic Association (AOA-JOA) Traveling Fellowship was created to develop and enhance collaboration between the Japanese and American orthopaedic communities. The fellowship is geared to early-career surgeons and fosters clinical and cultural exchange between members of the 2 countries. In 2024, the fellows hailed from around the United States: Kelly K.

Osteosynthesis with anatomic reduction after malleolar fractures improves ten years outcome: a single center trial.

Introduction: Malleolar fractures are the most common ankle fractures and a major risk factor for ankle osteoarthritis in the long-term. Little is known about modifiable risk factors for a satisfactory outcome. This study aimed to assess the long-term clinical, functional and radiological outcomes in patients after osteosynthesis.

Intentional Enneking-inappropriate surgery and high-energy particle therapy for unresectable osteogenic sarcoma of the spine: a retrospective study.

Objective: The aim of this study was to compare the outcome of intralesional gross-total resection (GTR) followed by high-energy particle therapy with en bloc and intralesional resections.

Methods: A retrospective study of patients diagnosed with primary osteogenic sarcoma (OGS) of the spine between 2009 and 2020 was conducted. Demographic information, including age, affected site, tumor volume, and Weinstein-Boriani-Biagini stage, was collected.

Metallosis-Induced Warm Antibody Auto-Immune Hemolytic Anemia After Bilateral, Large-Diameter Metal-on-Metal Total Hip Arthroplasty With Complete Remission After Revision.

The use of metal-on-metal bearing couples in total hip arthroplasty can lead to an increased release of metal ions, particularly cobalt and chromium over time. This can lead to local and systemic metallosis, which has cytotoxic, genotoxic, and immunotoxic effects and can cause a host of secondary disorders. We describe the case of a 37-year-old female patient that was diagnosed with warm-antibody autoimmune hemolytic anemia (WAIHA) one and a half years after bilateral large-diameter head metal-on-metal total hip arthroplasty.

Hip microinstability and its association with femoroacetabular impingement: A scoping review.

Introduction: Hip microinstability has become a recognized cause of non-arthritic hip pain and disability in young patients. However, its pathophysiology remains unclear. We want to (1) present an overview of the evidence of hip microinstability and of its association with femoroacetabular impingement (FAI), (2) map out the type of evidence available, and (3) make recommendations for future research.

Femoral head decentration on hip MRI: comparison between imaging planes, methods of contrast administration, and hip deformities.

Objectives: To compare the prevalence of femoral head decentration (FHD) on different MR imaging planes in patients undergoing direct/indirect hip MR arthrography (MRA) with asymptomatic controls and to evaluate its association with osseous deformities.

Methods: IRB-approved retrospective single-center study of symptomatic hips undergoing direct or indirect hip MRA at 3 T. Asymptomatic participants underwent non-contrast hip MRI at 3 T.

Comparison of Classically and Machine Learning Generated Survival Prediction Models for Patients With Spinal Metastasis - A meta-Analysis of Two Recently Developed Algorithms.

Study Design: A systemic review and a meta-analysis. We also provided a retrospective cohort for validation in this study.

Objective: (1) Using a meta-analysis to determine the pooled discriminatory ability of The Skeletal Oncology Research Group (SORG) classical algorithm (CA) and machine learning algorithms (MLA); and (2) test the hypothesis that SORG-CA has less variability in performance than SORG-MLA in non-American validation cohorts as SORG-CA does not incorporates regional-specific variables such as body mass index as input.

Comparison of Two Modern Survival Prediction Tools, SORG-MLA and METSSS, in Patients With Symptomatic Long-bone Metastases Who Underwent Local Treatment With Surgery Followed by Radiotherapy and With Radiotherapy Alone.

Background: Survival estimation for patients with symptomatic skeletal metastases ideally should be made before a type of local treatment has already been determined. Currently available survival prediction tools, however, were generated using data from patients treated either operatively or with local radiation alone, raising concerns about whether they would generalize well to all patients presenting for assessment. The Skeletal Oncology Research Group machine-learning algorithm (SORG-MLA), trained with institution-based data of surgically treated patients, and the Metastases location, Elderly, Tumor primary, Sex, Sickness/comorbidity, and Site of radiotherapy model (METSSS), trained with registry-based data of patients treated with radiotherapy alone, are two of the most recently developed survival prediction models, but they have not been tested on patients whose local treatment strategy is not yet decided.

Drop in survivorship 13 years after AMIC procedures in aligned knees: A long-term follow-up.

Purpose: Autologous matrix-induced chondrogenesis (AMIC) showed promising short-term results comparable to microfracture. This study aims to assess the 19-year outcomes of AMIC, addressing the lack of long-term data.

Methods: Retrospective cohort of 34 knees treated with AMIC underwent a 19-year follow-up.

Proceedings of the Think Tank for Osteosarcoma Medical Advisory Board.

A "Think Tank for Osteosarcoma" medical advisory board meeting was held in Santa Monica, CA, USA on February 2-3, 2024. The goal was to develop a strategic approach to prevent recurrence of osteosarcoma. Osteosarcoma metabolism and the genomic instability of osteosarcoma, immunotherapy for osteosarcoma, CAR-T cell therapy, DeltaRex-G tumor-targeted gene therapy, repurposed drugs, alternative medicines, and personalized medicine were discussed.

Patient-Reported Outcomes After Intramedullary Nailing of Oncologic Impending or Pathologic Fractures With Carbon Fiber or Titanium Implant.

Introduction: Despite the benefits of intramedullary nailing (IMN) of impending or pathologic fractures in oncologic patients, literature on patient-reported outcomes (PROs) is scarce in patients treated with carbon fiber (CF) nails. Our study compared postoperative PROs after IMN with CF or titanium implants.

Methods: We conducted a retrospective propensity score-matched cohort study of patients treated at our institution with CF or titanium nails for impending or pathologic fractures from metastatic bone disease.

Factors associated with skeletal-related events in patients with bone metastatic melanoma: A retrospective study of 481 patients.

Objectives: Metastatic bone disease is estimated to develop in up to 17% of patients with melanoma, compromising skeleton integrity resulting in skeletal-related events (SREs), which impair quality of life and reduce survival. The objective of the study was to investigate (1) the proportion of melanoma patients developing SREs following diagnosis of bone metastasis and (2) the predictors for SREs in this patient cohort.

Methods: Four hundred and eighty-one patients with bone metastatic melanoma from two tertiary centers in the United States from 2008 to 2018 were included.