This study aimed to assess the effect of implantation of fresh human amniotic membranes (HAM) on bone consolidation during distraction bone lengthening.

Although hearing loss in orthopaedic surgeons from exposure to hammering sounds have been previously reported, there are no reports on the noise environment during total hip arthroplasty (THA) in Japan. The aim of this study was to investigate the sound level generated by cementless THA in Japan, and to discuss the broader sound environment within this space.

A walking support orthosis known as the e-foot®, a rubber orthotic worn from the hip to the forefoot to enhance joint flexibility and movement, has been developed to assist elderly people and individuals with walking impairments. Despite its widespread acceptance and positive reception in some care settings, the precise impact of this device on gait dynamics remains unexplored. This study aims to bridge this gap by comparing the walking speeds of healthy volunteers using the e-foot® against their normal walking speeds. Furthermore, it seeks to elucidate the biomechanical alterations induced by the e-foot® on their gait patterns.

Pseudarthrosis is a major complication after posterior lumbar interbody fusion (PLIF) and transforaminal interbody fusion (TLIF), and its risk factors need to be identified. This study aimed to investigate the relationship between the number of remaining teeth (NRT) and pseudarthrosis.

Length unstable femoral shaft fractures in school-aged children usually demand surgical treatment, but the optimal choice remains controversial, especially in overweight adolescents. This study aimed to compare the clinical results of locking compression plates (LCP) and elastic stable intramedullary nails (ESIN) combined with temporary external fixator (TEF) in school-aged children weighing over 50 kg.

Various conservative treatments have been reported for refractory calcific tendinitis of the shoulder. This study aimed to evaluate the clinical outcomes of a combined therapy of focused shock wave (FSW) and ultrasound-guided percutaneous irrigation of calcific tendinopathy (US-PICT).

Evaluating the correlation between degenerative meniscus tears and medial meniscus extrusion is necessary to determine the appropriate treatment plan for early-stage knee osteoarthritis. This study evaluated the relationship between degenerative meniscal tears and medial meniscus extrusion in early-stage knee osteoarthritis by using ultrasonography.

The influence of advanced imaging modalities on the reliability of 2018 AO/OTA classification and detection of features contributing to fracture instability have not been adequately studied in the literature.

Hounsfield unit values (HU) are known to correlate with dual-energy X-ray absorptiometry (DXA), and they are gaining attention as a new method for assessing Bone mineral density (BMD) that is not affected by the limitations of DXA, such as degeneration, scoliosis, and vascular calcification. The purpose of this study was to compare the efficacy of HU and DXA T-scores in predicting adjacent vertebral fractures (AVF) following balloon kyphoplasty (BKP) using the same computed tomography and DXA at one institution.

Medial humeral epicondyle fracture is a prevalent type of upper limb fractures in pediatric patients. This study aims to compare the follow-up clinical results and complications in 30 children with medial epicondyle fractures who were treated with either metal screws or absorbable screws at our hospital.

A finite element analysis was performed to simulate the biomechanical differences between anterior-posterior (AP) direction and posterior-anterior (PA) direction placement of two cannulated screws in Hoffa fractures.

Degenerative lumbar diseases (DLDs) often have significant impacts on patients' quality of life, particularly when cage retropulsion (CR) occurs following lumbar interbody fusion (LIF). In this study, we conducted a meta-analysis to assess the risk factors associated with CR after LIF.

Ulnar shortening osteotomy (USO) is a well-established surgical technique for ulnar impaction syndrome and triangular fibrocartilage complex injuries, but complications like delayed union and nonunion are often encountered. Transverse and oblique osteotomy techniques are commonly used, yet direct comparisons using advanced implants are limited. This study aims to compare the clinical and radiological outcomes of USO using the Jplate with a transverse osteotomy device and the APTUS Wrist Ulna Shortening System 2.5 with an oblique osteotomy device.

Delirium is a postoperative complication that may occur in older patients. This study aimed to investigate the incidence of postoperative delirium and its risk factors in patients who had undergone total hip arthroplasty (THA) or total knee arthroplasty (TKA). Few reports have addressed the occurrence of delirium when different methods of pain control are used following total joint arthroplasty, and, therefore, whether its incidence varied depending on differences in pain control was investigated.

The ultrasound-guided medial collateral ligament bursa injection technique is safe, reproducible, and effective in treating symptomatic degenerative medial meniscal tears. However, the mechanisms of action and optimal drug combinations remain unclear. This study aimed to evaluate and compare the histological changes caused by injections of corticosteroids and hyaluronic acid into the medial collateral ligament bursa in a rabbit model of medial meniscus horizontal tears. Furthermore, we compared neovascularization and neurogenesis between different treatments.

The reproducibility of dynamic balance is an essential component of athletic performance and injury prevention, although it is affected by sex differences. This study aimed to confirm the reproducibility of repeated dynamic balance measurements and ultrasonography assessments of the anterior tibiofibular gap that may contribute to changes in dynamic balance for each sex.

Hip fracture affects millions of persons and is associated with excess morbidity and mortality. More knowledge is needed to regard the prolonged effects of intensive exercise in relatively frail hip fracture patients. In this meta-analysis, we want to determine whether intensity strength training in patients after hip fracture is superior to general exercises in improving physical function.

Balloon kyphoplasty (BKP) for osteoporotic vertebral fracture (OVF) has been reported to maintain quality of life (QOL). This study aimed to investigate the effectiveness of ultra-early BKP performed within two weeks of injury (ultra-early group) to cases after two to four weeks post-injury (early group) and over four weeks (conventional group), assessing radiographic assessment such as subsequent fracture etc, questionarre such as QOL and back pain-related activities of daily living (ADL) one year after surgery.

We aimed to determine whether elevated preoperative serum inflammatory markers influence surgical site infections (SSIs) and periprosthetic joint infections (PJIs) after primary total hip arthroplasty (THA).