| Posterior ankle arthroscopy: an anatomic study. | |
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MedLine Citation:
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PMID: 12004018 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: Ankle arthroscopy has generally been performed with use of anterior portals with the patient in the supine position. Little has been published on ankle arthroscopy performed with use of posterior portals, particularly with the patient in the prone position. The purpose of the present study was to evaluate the relative safety and efficacy of ankle arthroscopy with use of posterior portals with the limb in the prone position. METHODS: Thirteen fresh-frozen cadaver specimens were used. Posterolateral and posteromedial portals were established. Arthroscopy was performed, and the extent of the talar dome that could be visualized was marked. Four-millimeter plastic cannulae were filled with oil and were placed in the portals for use as reference landmarks on magnetic resonance imaging studies. The proximity of the portal cannulae to the adjacent structures was measured on standard magnetic resonance images and then during careful dissection. The distances measured by dissection were compared with the measurements made on magnetic resonance images. RESULTS: An average of 54% (range, 42% to 73%) of the talar dome could be visualized. The average distance between a cannula and adjacent anatomic structures after dissection was 3.2 mm (range, 0 to 8.9 mm) to the sural nerve, 4.8 mm (range, 0 to 11.0 mm) to the small saphenous vein, 6.4 mm (range, 0 to 16.2 mm) to the tibial nerve, 9.6 mm (range, 2.4 to 20.1 mm) to the posterior tibial artery, 17 mm (range, 19 to 31 mm) to the medial calcaneal nerve, and 2.7 mm (range, 0 to 11.2 mm) to the flexor hallucis longus tendon. The magnetic resonance images demonstrated very similar distances except in the case of the distance between the posteromedial cannula and the tibial nerve, which often was difficult to specifically identify on magnetic resonance imaging studies. CONCLUSIONS: The findings of the present cadaveric study suggest that, with the patient in the prone position, arthroscopic equipment may be introduced into the posterior aspect of the ankle without gross injury to the posterior neurovascular structures. Limited clinical trials should be carried out to confirm this finding. |
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Authors:
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David F Sitler; Annunziato Amendola; Christopher S Bailey; Lisa M F Thain; Alison Spouge |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: The Journal of bone and joint surgery. American volume Volume: 84-A ISSN: 0021-9355 ISO Abbreviation: J Bone Joint Surg Am Publication Date: 2002 May |
Date Detail:
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Created Date: 2002-05-10 Completed Date: 2002-06-10 Revised Date: 2010-10-25 |
Medline Journal Info:
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Nlm Unique ID: 0014030 Medline TA: J Bone Joint Surg Am Country: United States |
Other Details:
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Languages: eng Pagination: 763-9 Citation Subset: AIM; IM |
Affiliation:
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Fowler Kennedy Sport Medicine Clinic, Univeristy of Western Ontario, London, Canada. dsitler@nmscd.med.navy.mil |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Ankle Injuries
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pathology*,
physiopathology,
surgery* Ankle Joint / pathology*, physiopathology, surgery* Arthroscopy / adverse effects* Humans Ligaments, Articular / pathology, physiopathology, surgery Magnetic Resonance Imaging Prone Position / physiology Tendons / pathology, physiopathology, surgery Tibial Arteries / pathology, physiopathology, surgery Tibial Nerve / pathology, physiopathology, surgery |
| Comments/Corrections | |
Comment In:
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J Bone Joint Surg Am. 2003 Jan;85-A(1):164; author reply 164-5
[PMID:
12533588
]
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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