Biomedical subjects

Kazumasa Fukushima

Publications and source records attributed to Kazumasa Fukushima.

4 recordsLinked to original sources

PubMed2005

New meniscus repair by an all-inside knot suture technique.

The indications for the all-inside knot suture technique include tears in the red-red zone or red-white zone in the meniscus, and a horizontal tear, a vertical tear, and a peripheral tear. First, find an appropriate place for a suture insertion site with a Kateran needle or a spinal needle. Make sure it exits beyond the tear in the meniscus. Once the insertion site is chosen, a suture is passed into and through the joint. The suture is slowly pulled back. You should be able to feel the tip of the suture come out of the joint capsule. If you want to make a vertical suture to suture the tear, move the suture vertically apex. Then insert the suture back into the joint through the capsule. Make sure the suture stays inside the joint. Find and grab the suture with a punch inserted from the clear cannula. Pull the suture out of the joint through the clear cannula with the punch. Tighten the knot with a knot pusher. Then confirm the stability of the sutured site with the probe. Our all-inside knot suture technique can be performed arthroscopically, allowing reliable repair of the torn meniscus.

Anterior Cruciate Ligament↗

PubMed2004

Meniscus allograft transplantation using posterior peripheral suture technique: a preliminary follow-up study.

The aim of this study was to describe the indication, planning, technique, rehabilitation, and clinical results after cryopreserved allograft meniscus transplantation. Forty consecutive patients, 33 men and 7 women (mean, 37.3 years of age), were evaluated at 1-year follow-up post surgery. Symptoms, patient satisfaction, ROM (range of motion), surgical time, blood loss, and surgical history were evaluated. Thirty-eight (95%) patients had previous total or partial meniscectomy (mean, 11.4 years ago). Preoperatively, chief complaints were knee joint line pain and swelling. Mean surgical time and blood loss were 123 min and 87 g, respectively. At 12 months postsurgery, 5% and 10%, respectively, complained of pain and swelling; ROM was 0 degrees -132 degrees. Thirty-eight (95%) patients were satisfied. According to the results, meniscus transplantation can lead to significant pain relief and satisfaction in young symptomatic meniscectomized patients. However, long-term results must be obtained to prove the effectiveness of this technique in prevention of degenerative joint changes.

Adult↗

PubMed2004

Patellar dislocation: arthroscopic patellar stabilization with anchor sutures.

There are many procedures to treat recurrent patellar subluxations and dislocations. Most of these procedures are open repairs for acute conditions or open reconstructions for chronic conditions, and both surgeries need large skin incisions. Although there are many arthroscopic procedures for meniscal and ligament injuries, there are very few arthroscopic procedures described for patellofemoral instability. In this report, we describe a new arthroscopic method to stabilize the patella for acute dislocation. Our technique includes an arthroscopic lateral release and a medial structure repair. We suggest that this procedure is minimally invasive and easier than traditional open procedures. Moreover, this may prevent patients from developing chronic instability of the patellofemoral joint.

Acute Disease↗

PubMed2003

Improvement of muscle healing through enhancement of muscle regeneration and prevention of fibrosis.

Skeletal muscle is able to repair itself through regeneration. However, an injured muscle often does not fully recover its strength because complete muscle regeneration is hindered by the development of fibrosis. Biological approaches to improve muscle healing by enhancing muscle regeneration and reducing the formation of fibrosis are being investigated. Previously, we have determined that insulin-like growth factor-1 (IGF-1) can improve muscle regeneration in injured muscle. We also have investigated the use of an antifibrotic agent, decorin, to reduce muscle fibrosis following injury. The aim of this study was to combine these two therapeutic methods in an attempt to develop a new biological approach to promote efficient healing and recovery of strength after muscle injuries. Our findings indicate that further improvement in the healing of muscle lacerations is attained histologically by the combined administration of IGF-1 to enhance muscle regeneration and decorin to reduce the formation of fibrosis. This improvement was not associated with improved responses to physiological testing, at least at the time-points tested in this study.

Animals↗