| Experimental carpal reverse-flow pedicle vascularized bone grafts. Part II: bone blood flow measurement by radioactive-labeled microspheres in a canine model. | |
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MedLine Citation:
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PMID: 10642472 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Reverse-flow pedicle vascularized bone grafts (VBGs) from the radius, commonly used for carpal nonunion and avascular necrosis, provide superior clinical results. In this experimental study bone blood flow in canine distal radius VBGs was measured to determine the status of the bone circulation immediately after elevation (group 1) and 2 weeks later (group 2). Immediate VBG flow (group 1) was substantial, but significantly less than the contralateral undisturbed distal radius (8.42 mL/min/100 g and 16.53 mL/min/100 g, respectively). At 2 weeks after surgery (group 2) VBG flow was compared with nonvascularized control grafts. Vascularized bone graft flow was significantly higher than group 1 (mean, 33.72 mL/min/100 g). Minimal flow was seen in the conventional graft control (0.62 mL/min/100 g). This study demonstrates that reverse-flow pedicle radius VBG maintain enhanced bone circulation long-term. Given the similarity of human and canine distal radius vascular anatomy, these data support the clinical use of reverse-flow VBG for carpal pathology. (J Hand Surg 2000; 25A:46-54. |
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Authors:
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Y K Tu; A T Bishop; T Kato; M L Adams; M B Wood |
Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
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Title: The Journal of hand surgery Volume: 25 ISSN: 0363-5023 ISO Abbreviation: J Hand Surg Am Publication Date: 2000 Jan |
Date Detail:
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Created Date: 2000-03-02 Completed Date: 2000-03-02 Revised Date: 2009-06-08 |
Medline Journal Info:
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Nlm Unique ID: 7609631 Medline TA: J Hand Surg Am Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 46-54 Citation Subset: IM |
Copyright Information:
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Copyright 2000 by the American Society for Surgery of the Hand.). |
Affiliation:
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Department of Orthopedics, Mayo Clinic and Mayo Foundation, Rochester, MN 55905, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Bone Transplantation / methods*, statistics & numerical data Carpus, Animal / blood supply*, surgery* Cesium Radioisotopes Dogs Female Forelimb Male Microspheres Niobium Radioisotopes Radius / blood supply*, transplantation* Regional Blood Flow Surgical Flaps* Ulna / blood supply*, transplantation* |
| Grant Support | |
ID/Acronym/Agency:
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AR38671/AR/NIAMS NIH HHS |
| Chemical | |
Reg. No./Substance:
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0/Cesium Radioisotopes; 0/Radioisotopes; 7440-03-1/Niobium |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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