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Knee-to-ankle mosaicplasty for the treatment of osteochondral lesions of the ankle joint

Valderrabano, Victor and Leumann, André and Rasch, Helmut and Egelhof, Thomas and Hintermann, Beat and Pagenstert, Geert. (2009) Knee-to-ankle mosaicplasty for the treatment of osteochondral lesions of the ankle joint. The American journal of sports medicine, Vol. 37 , S. 105S-111S.

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Official URL: http://edoc.unibas.ch/dok/A6005270

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Abstract

BACKGROUND: Osteochondral lesions are frequently seen in athletes after ankle injuries. At this time, osteochondral autologous transplantation (OATS, mosaicplasty) is the only surgical treatment that replaces the entire osteochondral unit in symptomatic lesions. PURPOSE: To evaluate the clinical and radiological midterm to long-term outcome of ankles treated with knee-to-ankle mosaicplasty. STUDY DESIGN: Case series; Level of evidence, 4. METHODS: Clinical evaluation consisted of patient satisfaction, pain evaluation (visual analog scale [VAS]), American Orthopaedic Foot and Ankle Society (AOFAS) ankle score, sports activity score, range of motion, the radiological evaluation of magnetic resonance imaging (MRI), and single photon emission computed tomography-computed tomography (SPECT-CT) analysis of both the ankle and the knee joint. RESULTS: Twelve of 21 patients (mean age, 43 years; male, 8; female, 4) were available for latest follow-up (mean, 72 months). At follow-up, patients reported a satisfaction rate of good to excellent in 92% (n = 11) and poor in 8% (n = 1). The average VAS pain score was 3.9 (preoperative, 5.9; P = .02), AOFAS ankle score significantly increased from 45.9 to 80.2 points (P > .0001), sports activity score remained significantly decreased with 1.25 (preinjury level, 2.3; P = .035), and ankle dorsiflexion was significantly reduced (P = .003). Knee pain was reported in 6 patients (50%). Radiologically, recurrent lesions were found in 10 of 10 cases (100%) and some degree of cartilage degeneration and discontinuity of the subchondral bone plate in 100%. CONCLUSION: Indications for mosaicplasty with a plug transfer from the knee to the talus must be considered carefully, as at midterm, moderate outcome and considerable donor-site morbidity may be found.
Faculties and Departments:03 Faculty of Medicine > Bereich Operative Fächer (Klinik) > Bewegungsapparat und Integument
03 Faculty of Medicine > Departement Klinische Forschung > Bereich Operative Fächer (Klinik) > Bewegungsapparat und Integument
UniBasel Contributors:Hintermann, Beat
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:Sage
ISSN:0363-5465
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:01 Mar 2013 11:13
Deposited On:01 Mar 2013 11:08

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