ABSTRACT
OBJECTIVE: To investigate the morphological characteristics of the bridge tendon grafting in no man's land to reconstruct the tendon defect and the effect of passive mobilization on it. METHODS: A 2 cm defect was made in bilateral flexor digitorum profundus tendons of the middle chicken toes, and was then transplanted to the opposite site to serve as a segmental autograft tendon. Postoperatively, passive mobilization of the left and right middle toes began at 5 and 21 d separately. Specimens were studied by light, scanning and transmission electron microscopy at 5, 10, 21 and 35 d. RESULTS: Early repair of the tendon-graft of the left middle toes was made by proliferation and ingrowth of the epitenon cells intermingled with newly-formed collagen fibers. A gliding surface formed at 10 and 21 d. The tendon graft itself played an active role in the repair. In contrast, adhesions obliterated the surface and occupied the space between the tendon graft and surrounding tissues in the right middle toes. CONCLUSIONS: It indicates that the use of the segmental bridge tendon graft in no man's land coupled with early passive motion stimulates an intrisic repair process in both the tendon stump and the autogenous tendon graft and results in a functional healing.
ABSTRACT
Objective To evaluate the effects of Burch-Schneider(BS) acetabular reinforcement ring applied in primary or revision total hip arthroplasties in 9 patients with combined or cavitary acetabular bone defects. Methods A retrospective follow up that averaged 3.8 years was performed with a special scoring system comprising the patients symptoms, signs and function. Results The excellent and good function were achieved in 89% of all cases. Conclusion 1)BS reinforcement ring could be effectively and reliably applied in primary or revision total hip arthroplasty or in patients with severe acetabular bone defects. 2)BS reinforcement ring shows the biological fixation feature, so as to provide good foundation for long-term satisfactory function of hip. 3)The lower ear of BS ring need not to be fixed to ischium with screws as usual, but be inserted in obturator foramen above transverse ligament, thus imparting some elastic resilience to it. 4)The upper ear should be folded through such a curve that its curvature was in compliance with that of ilium, which would be better performed in one session. 5)The appropriate amount of 0.8 cm?0.8 cm?0.8 cm morcellized allografting bone was used to snugly fill the space, which would be conducive to desirable incorporation between prosthesis and bone, and the authors propose that the patients should be allowed weight-bearing earlier.
ABSTRACT
Objective To investigate the effect of Gout Gra nule(GG)for gout.Methods Gout -relieving effect of GG was observed in rats with adjuvant arthritis induced by sodium urate and i n mice with hyperuricemia induced by hypoxan-thine.Anti -inflammation of GG was i nvestigated in mice with xylene -ind uced auricular swelling and in rats with edema of hind paw induced by injection of carrageenin.WBC migratory response c aused by carboxymethylcellulose(CMC)in mice was also observed.Results GG could reduce the blood level of uric acid and inhibit acute inflammatio n in model ani-mals and also tended to promote the elimination of uric acid.Conclusion GG had a remarkable effect on the acut e attack of gout.