Takashi Habata

Learn More
Cartilage engineered from mesenchymal stem cells (MSCs) requires a scaffold to keep the cells in the cartilage defect and to act as a support for inducing hyaline cartilage formation. We developed a novel three-dimensional special poly-lactic-glycolic acid (PLGA) scaffold that provided structural support and stimulated repair. Three-dimensional PLGA(More)
An experimental study of rabbit menisci was carried out to evaluate the healing-promoting properties of fibrin glue and fibrin glue-containing marrow cells. A full-thickness defect, 1.5 mm in diameter, was made within the avascular portion of the meniscus and left empty in 20 menisci (C group), filled with fibrin glue in 20 menisci (F group), and filled(More)
The purpose of this study is to investigate the relationship between meniscal degeneration and element contents. The contents of elements (calcium, phosphorus, sulfur, and magnesium) in the menisci from 17 patients with osteoarthritis (OA) of the knee, 6 with rheumatoid arthritis (RA), and 2 who underwent the surgical operation for malignant tumors(More)
OBJECTIVE To develop a new diagnostic technology to evaluate articular cartilage quantitatively by introducing an ultrasonic probe into the knee joint under arthroscopy and analyzing the A-mode echogram by means of wavelet transformation. DESIGN Quantitative evaluation using comparison of two indices on the wavelet map and macroscopic evaluation using the(More)
OBJECTIVE To investigate whether living human articular cartilage can be evaluated quantitatively by means of a new diagnostic technique that introduces an ultrasonic probe into the knee joint under arthroscopy and then analyzes the A-mode echogram by means of wavelet transformation. DESIGN Intact and injured sites of living human articular cartilage were(More)
It is widely accepted that high tibial osteotomy (HTO) is an effective surgical treatment for medial gonarthrosis. However, long-term follow-up studies have revealed that the clinical results deteriorate over time and varus deformity often recurs. We performed barrel-vault osteotomy in HTO with a correction angle that did not cause arthritic progression in(More)
OBJECTIVE To investigate ultrasonic evaluation methods for detecting whether the repair tissue is hyaline cartilage or fibrocartilage in new cartilage regeneration therapy. METHODS We examined four experimental rabbit models: a spontaneous repair model (group S), a large cartilage defect model (group L), a periosteal graft model (group P) and a(More)
This study aimed to show the results of osteochondritis dissecans fragment excision. We reviewed 85 patients (98 knees) with osteochondritis dissecans in a retrospective study of the results of merely excising the osteochondral lesion. Thirty-one knees were treated by only the removal of the fragment. Of these, it was possible to contact and examine 14(More)
Seventeen years ago we treated a nonunited avulsion fracture of the anterior tibial spine with open reduction and pull-out wires. When the patient was 9 years old, she fell and bruised her left knee. The knee was immobilized for a month in a long cast. When she was 24 years old, she felt severe knee pain and giving way after playing tennis 1 month before(More)
PURPOSE The purpose of this retrospective study was to analyze the effects of age at surgery on the clinical results, arthritic progression, and changes in lower limb alignment during long-term follow-up of total resection for discoid lateral meniscus. METHODS A total of 37 knees in 32 patients were reviewed as a whole group and also after division into(More)