Metacarpal fractures are common injuries that are frequently managed with repeated radiological follow-up, although the clinical value of routine imaging is uncertain. The aim of this study was to evaluate the frequency and clinical impact of follow-up imaging in patients with metacarpal fractures treated operatively or non-operatively, and to quantify the associated financial and environmental impact.

This paper aims to establish an X-ray imaging grading for assessing ankle joints in adult Kashin-Beck disease (KBD) and investigate its correlation with clinical grading of finger and ankle pain.

Minimally invasive ultrasound-guided techniques enable physicians to treat common musculoskeletal injuries of the knee. In addition to standard injectable anti-inflammatory treatments, other image-guided procedures are emerging, including injectable orthobiologics (i.e., platelet-rich plasma), needle tenotomy, and cyst fenestrations. Here, the rationale and technique for ultrasound-guided treatments for common knee ailments are reviewed.

Dual-energy CT (DECT) has emerged as a valuable imaging modality in musculoskeletal radiology, offering unique capabilities through virtual non-calcium reconstructions and spectral analysis. This narrative review examines the current evidence and clinical applications of DECT as an alternative to MRI in acute knee trauma evaluation. We discussed the technical principles of DECT, including virtual non-calcium imaging for bone marrow edema detection, metal artifact reduction techniques, and soft tissue assessment capabilities. The review covers six key clinical applications: complex fractures with articular involvement, subtle impacted fractures, stress fractures and healing assessment, imaging around metallic implants, osteochondritis dissecans evaluation, fracture assessment in specific knee locations. Current evidence indicates that DECT can detect bone marrow edema with sensitivity and specificity comparable to MRI, while providing distinct advantages in availability, acquisition speed, and compatibility with metallic implants. The advent of photon-counting CT technology is expected to further enhance both spatial resolution and spectral differentiation. Although MRI remains the gold standard for comprehensive assessment of knee trauma, DECT offers a practical alternative in selected clinical scenarios-particularly in emergency settings and in patients with contraindications to MRI. Future studies should aim to standardize acquisition protocols and establish evidence-based guidelines to support its optimal clinical application.

Knee articular cartilage lesions resulting from acute or chronic injury are frequently encountered in routine clinical magnetic resonance imaging (MRI). Acute lesions typically occur following recreational or athletic activity and are often associated with concomitant internal knee derangements, whereaschronic lesions are thought to result from repetitive loading that exceeds physiological thresholds in both magnitude and frequency. Accurate characterization of cartilage lesion size, depth, and subchondral bone involvement is clinically relevant, as it directly influences therapeutic decision-making. In clinical practice, MRI evaluation of the knee cartilage is primarily performed using intermediate-weighted, two-dimensional fast spin-echo sequences, preferably with high spatial resolution and at 3 Tesla. Looking ahead, machine learning approaches hold promise for improving the prediction of osteoarthritis by integrating pathologic imaging findings with complementary sources of information such as clinical parameters, quantitative biomarkers, and patient-reported outcomes.

Compare the ultrasound findings in primary adhesive capsulitis and a control group to determine the sonographic diagnostic performance.

To develop a multimodal ultrasound radiomics model integrating power Doppler (PD) and superb microvascular imaging (SMI) data, combined with clinical baseline characteristics, and to evaluate its predictive performance for active inflammation in rheumatoid arthritis (RA).

To evaluate the cost-effectiveness of opportunistic CT for sarcopenia screening compared with standard-of-care clinical screening methods, using a decision-analytic model based on quality-adjusted life years (QALYs) and healthcare costs.

The stability and function of the medial meniscus is linked to the complex anatomy and biomechanics of the medial, posteromedial, and posterior knee capsuloligamentous structures, including the superficial medial collateral ligament, deep medial collateral ligament, posterior oblique ligament, semimembranosus tendon and its expansions including the oblique popliteal ligament, and the meniscocapsular and meniscotibial ligaments. These components provide static and dynamic stability against valgus stress, tibial rotation, and anterior tibial translation. Injuries to these structures can contribute to meniscal pathology including extrusion, ramp lesions, early cartilage degeneration, and failure of cruciate ligament reconstructions. MRI plays a crucial role in the evaluation of these structures, aiding in diagnosis and allowing for an understanding of injury patterns. However, anatomic variations and differences in classification schemes may create challenges, particularly with regard to ramp lesions which occur at the posteromedial meniscocapsular junction. These lesions are frequently associated with anterior cruciate ligament tears and are often underdiagnosed without careful imaging evaluation or special attention during arthroscopy. In this article, we will discuss the anatomy (including historical and contemporary perspectives) and injury patterns of the medial supporting structures, posteromedial corner, and posterior capsular junction of the medial meniscus of the knee with a focus on MRI. Recognition of nuanced anatomy and pathology of these stabilizing structures is essential for appropriate treatment planning and optimization of patient outcomes. Key Points 1) Medial meniscal stability relies on complex interactions between the superficial medial collateral ligament (sMCL), deep medial collateral ligament (dMCL), posterior oblique ligament (POL), semimembranosus tendon, and posteromedial meniscocapsular structures resisting valgus, rotational, and translational forces. 2) sMCL injuries often co-occur with anterior cruciate ligament (ACL) and posteromedial corner tears and precise localization is key. Proximal tears are most common, while distal tears may require surgery due to potential soft tissue interposition. 3) The semimembranosus tendon and expansions contribute to posteromedial knee stability and mobilization of the posterior horn of the medial meniscus during knee flexion, preventing meniscal impingement and tears. 4) Ramp lesions at the posteromedial meniscocapsular junction frequently accompany ACL tears and are difficult to detect without careful analysis on MRI and arthroscopy.

To evaluate the impact of combining a second-generation super-resolution deep learning-based reconstruction (DLR2) with a metal artifact reduction (MAR) algorithm in CT images of patients with metal hip implants by assessing both quantitative metrics and qualitative reader ratings.

To estimate hip fracture (Fx) risk if one or more vertebral fractures are detected in an otherwise healthy older woman or man.

Gore-Tex or expandable polytetrafluorethylene (ePTFE) was commonly used for synthetic ACL and PCL graft reconstruction in the late 1980s, but was discontinued owing to high failure rates and osteolytic complications. While this is an uncommon complication within the initial 20 years of post-graft implantation, the effects of these ligaments at much longer follow-up have little documentation due to increasing rarity. We present a case of a 64-year-old male with massive osteolysis first suspected to be extensive subchondral cystic changes secondary to advanced osteoarthritis. Two years after the initial presentation of knee pain, the patient represented with a tibial plateau fracture through the massive osteolytic lesion. CT imaging and pathology favored particle wear osteolysis secondary to the implanted grafts. The patient was treated with partial graft removal and TKA with a revision-style tibial stem. This case highlights the rare, long-term complications of synthetic ligament grafts, including progressive osteolysis and pathologic fracture decades after implantation. Synthetic graft-related osteolysis should be considered in patients with a remote history of graft reconstruction presenting with late-onset joint instability or fractures. CT imaging is crucial in evaluating the degree of osteolysis as a staged surgical approach with bone grafting may be necessary for severe cases.

Lower extremity fractures are prevalent in vulnerable populations leading to significant burdens, which highlight the need for timely and precise diagnosis. Integrating deep learning with imaging findings has shown promising results for enhancing fracture detection accuracy. This study assesses the diagnostic accuracy of AI models using X-ray images to detect ankle and foot fractures and investigates the probable factors influencing their performance.

To analyze the experience at our institutions with liposclerosing myxofibrous tumor (LSMFT) regarding radiographic reporting, pathologic correlation, and follow-up for malignant transformation.

To compare the accuracy and reliability of 2D and 3D methods for measuring femoral version against an anatomic reference standard using 3D-printed femoral phantoms.

To assess the diagnostic accuracy of ultrasonography for meniscal injuries using arthroscopy as the reference standard.