Bone marrow lesions in knee osteoarthritis assessed by dynamic contrast-enhanced MRI with histopathological correlations.

Background: Bone marrow lesions (BMLs) in knee osteoarthritis (OA) have been assessed histopathologically and by dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI); however, a direct comparison of the results has not been reported.

Purpose: To evaluate and compare the findings by DCE-MRI and histopathology of subchondral BMLs in knee OA.

Material And Methods: In total, 19 patients with medial tibiofemoral knee OA undergoing total knee arthroplasty were analyzed.

Patient-related outcome, fracture displacement and bone mineral density following distal radius fracture in young and older men.

Background: Distal radius fractures can adversely affect wrist function; for men with this fracture, the role played by fracture severity, age and osteoporosis on fracture outcome has not been sufficiently studied.

Objective: To describe patient-reported outcome and the association with bone integrity, fracture severity and future fracture risk among young and older men with distal radius fracture.

Methods: This prospective study includes 133 men with acute distal radius fracture, mean age 54 (range 21-88), who were followed for 12 months.

Measurement of tibial tuberosity-trochlear groove distance by MRI: assessment and correction of knee positioning errors.

Objective: The tibial tuberosity-trochlear groove (TTTG) distance varies with the position of the knee in the MR or CT scanner. We present and assess a simple method for adjustment of adduction or abduction of the knee.

Materials And Methods: MRI of the knee encompassing a three-dimensional (3D) sagittal sequence including ≥ 8 cm of the proximal tibia was analyzed (29 females, 17 males; median age 45 years).

CT-guided transarticular biopsy of the sacroiliac joint: Technique and histomorphological results. A preliminary study.

Objective: To introduce and evaluate computed tomography (CT)-guided transarticular needle biopsy of the cartilaginous sacroiliac joint (SIJ) and to assess the biopsy results microscopically.

Materials And Methods: The new CT-guided transarticular biopsy of the SIJ was performed in a young corpse and ten patients, two males and eight females aged 18-81 years. All patients had abnormal findings by magnetic resonance imaging (MRI) of the SIJs, including bone marrow edema, related to different types of joint disorders.

[Perfusion magnetic resonance imaging in the treatment of Perthes disease].

In this review about perfusion magnetic resonance imaging (pMRI), we consider it to give detailed insight into the distribution of the infarction in the femoral head in the early phase of Perthes disease. The degree of head involvement is closely related to the long-term prognosis, and as early surgical treatment of children with severe head involvement may be beneficial, pMRI is suggested as an examination in older children with early stages of Perthes disease. The use of gadolinium as contrast medium in otherwise healthy children seems safe, but long-term effects are unknown.