Comparison of sonography and MRI in the evaluation of stability of capitellar osteochondritis dissecans.

Purpose: To compare the diagnostic accuracies of ultrasonography (US) and magnetic resonance imaging (MRI) with intraoperative capitellar osteochondritis dissecans (COCD) fragment stability findings.

Methods: Patients whose International Cartilage Repair Society (ICRS) osteochondritis dissecans (OCD) classifications were I/II (stable) or III (unstable) were included. Patients underwent preoperative US and MRI.

Long-term survival after sporadic and delayed metastases of conventional osteosarcoma: A case report.

Histologically conventional osteosarcoma, once metastasized to the lung, generally causes a rapid and fatal outcome. Osteosarcoma metastasis to the gastrointestinal tract is extremely rare.We report herein a case of osteoblastic osteosarcoma with exceptionally unique features: sporadic lung metastases and delayed metastases to the stomach and the jejunum with long-term survival.

Inhibition of microRNA-222 expression accelerates bone healing with enhancement of osteogenesis, chondrogenesis, and angiogenesis in a rat refractory fracture model.

Background: It is difficult to achieve bone union in case of non-union with non-invasive techniques. MicroRNAs (miRNAs) are short, non-coding RNAs that act as repressors of gene expression at the level of post-transcriptional regulation. This study focuses on microRNA (miR)-222 as it is known to be a negative modulator of angiogenesis, an essential component of fracture healing.

Comparison of fibrin clots derived from peripheral blood and bone marrow.

Background: Autologous fibrin clots derived from peripheral blood (pb-fibrin clot) and bone marrow (bm-fibrin clot) are thought to be effective for tissue regeneration. However, there is no report detailing the amount of growth factors in pb-/bm-fibrin clot. In this study we evaluated the amount of growth factors in human pb-/bm-fibrin clot, and prove the validity of fibrin clot for clinical use.

Impact of Corticosteroid Injection Site on the Treatment Success Rate of Trigger Finger: A Prospective Study Comparing Ultrasound-Guided True Intra-Sheath and True Extra-Sheath Injections.

The aim of this study was to investigate whether differences in corticosteroid injection site influence the therapeutic effect on trigger finger and thickness of local structures such as the A1 pulley and flexor tendons. Previously untreated trigger fingers were randomly assigned to receive either a true intra-sheath (group I) or an extra-sheath (group E) injection under ultrasonographic guidance. Symptom remission and recurrence rates and recurrence timing did not significantly differ between the groups.

MicroRNAs and Bone Regeneration.

Bone has multiple functions, both morphologically and physiologically, and it frequently features in the pathological condition, including fracture and osteoporosis. For bone regeneration therapy, the regulation of osteoblast differentiation is important. MicroRNA (miRNA)s are short noncoding RNA which regulate gene expression at the post-transcriptional level.