Introduction: Metal implants and bioabsorbable implants are frequently used in orthopaedic surgery, but they have some disadvantages. The usefulness of autologous bone has been described, and a method to precisely process autologous bone into implants such as screws and apply the implants clinically has been desired. We created a new system for manufacturing autologous bone screws during surgery and report five cases of scaphoid nonunion treated with precise autologous bone screws made from the tibial cortex using the new system.
View Article and Find Full Text PDFTenosynovial giant cell tumor (TSGCT) of localized type is a common disease occurring mostly in the hands. Diagnosis of this tumor is relatively easy to render with hematoxylin-eosin-stained sections as compared with that of TSGCT of diffuse type. However, very rare cases with chondroid metaplasia that have recently been reported mainly in diffuse type can make pathological differentiation from soft tissue cartilaginous tumors extremely difficult.
View Article and Find Full Text PDFBackground: For treatment of advanced elbow osteochondritis dissecans (OCD), we have used surgical treatment. Although favorable treatment outcomes have been reported for centrally located OCD, treatment outcomes are generally questionable and the choice of surgical method is controversial for laterally located OCD. Our purpose was to evaluate the treatment outcomes based on lesion location.
View Article and Find Full Text PDFObjective: Treatment of large advanced osteochondritis dissecans (OCD) of the elbow in young athletes is challenging.
Methods: We retrospectively reviewed the results in 9 baseball players (mean age, 13.7 years; range, 12-15 years) who were followed up for a mean 21.
To evaluate the capability of the "Soap-Bubble" maximum intensity projection (MIP) processing technique in visualisation of extensor tendons of the hand, 36 intact subjects and seven patients with surgically confirmed extensor tendon rupture were examined. Three-dimensional T1-weighted turbo spin echo (3DT1TFE) MRI was performed using a sensitivity encoding flex coil, followed by Soap-Bubble MIP processing. For patients with extensor tendon ruptures, MRI findings and intraoperative findings were compared.
View Article and Find Full Text PDFFlexor tendon injuries in zone II were treated in 14 fingers of 13 patients with our method. Firstly, a 2-strand core suture was made by the side-locking loop technique using a USP 2-0-sized braided polyblend polyethylene suture, then 7-strand peripheral cross-stitches were added using a USP 5-0-sized monofilament nylon suture. Post-operative exercises included passive flexion and extension without external fixation on the next day of surgery.
View Article and Find Full Text PDFIntroduction: Malunited intra-articular fracture of the proximal inter-phalangeal (PIP) joint sometimes causes problems, such as range of motion (ROM) limitation in the joint or lack of digital dexterity; however, the treatment method has not yet been established. We report a juvenile case of osteochondral autograft tranplantation to treat a malunited intra-articular fracture of the middle finger.
Case Report: A 14-year-old boy was injured at the right middle finger by a baseball impact and underwent conservative treatment.
Background: The 2-strand side-locking loop technique allows secure locking formation easily, yielding maximum tensile force. However, not all suture materials are suitable for this technique.
Methods: The bovine gastrocnemius tendons were transected and repaired end-to-end by the side-locking loop technique using USP2 braided polyblend, braided polyester, monofilament nylon, braided nylon, or monofilament absorbable polydioxanone sutures.
Background: Many suture materials and repair techniques have been applied in clinical tendon surgery. However, no recommendation is available concerning the choice of suture materials and repair techniques except in a few experimental studies. The purpose of the current study is to show the biomechanical difference resulting from the combination of suture materials and repair techniques.
View Article and Find Full Text PDFFreiberg disease is relatively rare and difficult to treat satisfactorily. We describe a new surgical technique of osteochondral plug transplantation for late-stage Freiberg disease that may restore normal function to the metatarsophalangeal joint. In the present series, we performed osteochondral plug transplantation to treat a stage IV lesion, according to Smillie's classification, by harvesting an osteochondral plug from the non-weight-bearing site on the upper lateral femoral condyle of the ipsilateral knee.
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