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Article
Safety of terminally gamma-ray-sterilized screws coated with fibroblast growth factor 2-calcium phosphate composite layers in non-human primates
Screws coated with fibroblast growth factor 2 (FGF-2)-calcium phosphate (CP) composite layers exhibit enhanced soft tissue and bone formation and angiogenesis because of the biological activity of FGF-2. Furth...
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Article
Open AccessEvaluation of hand functions and distal radioulnar joint instability in elite wheelchair basketball athletes: a cross-sectional pilot study
Wrist injury affects wheelchair basketball players’ performance; however, the relationship between distal radioulnar joint (DRUJ) instability and hand functions is unclear. This cross-sectional pilot study inv...
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Article
Open AccessCharacteristic MRI findings of the shoulder, elbow, and wrist joints in elite wheelchair basketball players
The health of wheelchair users’ upper limbs is directly related to their quality of life. Moreover, para-sport athletes are subjected to a dual load on their upper extremities from competition and daily life, ...
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Article
Correction to: Characteristic MRI findings of shoulder, elbow, and wrist joints in wheelchair user
A correction to this paper has been published: https://doi.org/10.1007/s00256-021-03717-8
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Article
Open AccessDevelopment of fibrocartilage layers in the anterior cruciate ligament insertion in rabbits
A detailed evaluation focusing on the fibrocartilage layers in the anterior cruciate ligament (ACL) insertion is necessary to consider regeneration of the insertion. This study examined the development of the ...
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Article
Open AccessAnatomic single-bundle anterior cruciate ligament reconstruction using a calcium phosphate-hybridized tendon graft: a randomized controlled trial with 2 years of follow-up
To improve tendon-to-bone healing in anterior cruciate ligament (ACL) reconstruction, a novel technique via calcium phosphate (CaP)-hybridized tendon graft using an alternate soaking process was developed. The...
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Article
Open AccessTraining with Hybrid Assistive Limb for walking function after total knee arthroplasty
The Hybrid Assistive Limb (HAL, CYBERDYNE) is a wearable robot that provides assistance to patients while walking, standing, and performing leg movements based on the intended movement of the wearer. We aimed ...
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Article
Open AccessUse of Hybrid Assistive Limb (HAL®) for a postoperative patient with cerebral palsy: a case report
The Hybrid Assistive Limb (HAL®) is an exoskeleton wearable robot suit that assists in voluntary control of knee and hip joint motion. There have been several studies on HAL intervention effects in stroke, spinal...
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Article
Calcium phosphate-hybridized tendon grafts reduce femoral bone tunnel enlargement in anatomic single-bundle ACL reconstruction
This study aimed to clarify the effect of calcium phosphate (CaP)-hybridized tendon grafting versus unhybridized tendon grafting on the morphological changes to the bone tunnels at the aperture 1 year after an...
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Article
Open AccessInvestigation of perioperative safety and clinical results of one-stage bilateral total knee arthroplasty in selected low-risk patients
An increased perioperative complication rate has been a concern with one-stage bilateral total knee arthroplasty (TKA). The purpose of this study was to retrospectively investigate the perioperative safety and...
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Article
Open AccessDifferences in placement of calcium phosphate-hybridized tendon grafts within the femoral bone tunnel during ACL reconstruction do not influence tendon-to-bone healing
Calcium phosphate (CaP)-hybridization of tendon grafts has been shown to improve tendon-to-bone healing. The purpose of this study was to clarify the influence of different tendon graft placement methods on te...
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Article
Open AccessReducing the risk of impaired bone apposition to titanium screws with the use of fibroblast growth factor-2−apatite composite layer coating
Loosening of screws is a common problem in orthopedic and maxillofacial surgery. Modifying the implant surface to improve the mechanical strength of screws has been tried and reported. We developed screws coat...
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Article
Open AccessSimple method for confirming tibial osteotomy during total knee arthroplasty
Achieving precise implant alignment is crucial for producing good outcomes after total knee arthroplasty (TKA). We introduce a simple method for confirming the accuracy of tibial osteotomy during TKA.
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Article
Open AccessIntra-articular injection of tranexamic acid via a drain plus drain-clam** to reduce blood loss in cementless total knee arthroplasty
Patients undergoing cementless total knee arthroplasty (TKA) sometimes suffer large blood loss. In a retrospective study, we explored whether postoperative intra-articular retrograde injection of tranexamic ac...
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Article
Enhanced wound healing associated with Sharpey’s fiber-like tissue formation around FGF-2-apatite composite layers on percutaneous titanium screws in rabbits
Pin-tract infections are the most common complications of external fixation. To solve the problem, we developed a fibroblast growth factor-2 (FGF-2)-apatite composite layer for coating titanium screws. The pur...
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Article
Anterior cruciate ligament insertion after partial tear: histological changes and chondrocyte turnover
The purpose of this study was to clarify the effects of partial resection on the glycosaminoglycan (GAG) layer thicknesses and chondrocyte turnover (apoptosis and cell proliferation) between uncalcified fibroc...
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Article
Open AccessCalcium phosphate-hybridized tendon graft to enhance tendon-bone healing two years after ACL reconstruction in goats
We developed a novel technique to improve tendon-bone attachment by hybridizing calcium phosphate (CaP) with a tendon graft using an alternate soaking process. However, the long-term result with regard to the ...
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Article
Open AccessTime dependence of changes of two cartilage layers in anterior cruciate ligament insertion after resection on chondrocyte apoptosis and decrease in glycosaminoglycan
The purpose of this study is to clarify the differences in time-dependent histological changes (chondrocyte apoptosis and glycosaminoglycan (GAG) layer thickness decrease) between uncalcified fibrocartilage (U...
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Article
Calcium phosphate coating formed in infusion fluid mixture to enhance fixation strength of titanium screws
A novel technique was developed to coat a calcium phosphate (CaP) layer on titanium screws with a titanium oxide surface layer, using infusion fluids officially approved for clinical use. A calcium-containing ...
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Article
Histological changes and apoptosis of cartilage layer in human anterior cruciate ligament tibial insertion after rupture
The purpose of this study is to investigate the histological changes and apoptosis of cartilaginous layers in human anterior cruciate ligament (ACL) tibial insertion at different time periods after rupture. By...
