کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4081290 1267586 2014 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Reducible valgus flat-foot: Assessment of posterior subtalar joint surface displacement by posterior arthroscopy during sinus tarsi expansion screwing
ترجمه فارسی عنوان
مسطح پا با کاهش قابل مالحظه: ارزیابی جابجایی سطح مفصلی زیر جلدی مشترک با آرتروسکوپی خلفی در هنگام پیچش
کلمات کلیدی
کف پای صاف، مفصل سوتلار، آرتروسکوپی، آناتومی
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی ارتوپدی، پزشکی ورزشی و توانبخشی
چکیده انگلیسی

IntroductionSubtalar arthroereisis corrects childhood and adult reducible valgus flat-foot in certain indications. Inserting an expansion screw in the sinus tarsi simultaneously corrects the calcaneal valgus of the talocalcaneal divergence and first-ray pronation if these are reducible. The displacement induced in the posterior subtalar joint (decoaptation, translation, rotation) is, however, poorly known. The present study involved arthroscopic assessment of posterior subtalar joint surface displacement during insertion of a talocalcaneal arthroereisis screw, with the hypothesis that displacement varies in three dimensions according to screw size.Material and methodEight specimens were used for the study. All ankles were supple, taken from adult subjects. A 4.5-mm arthroscope was used and measurements were taken with a graduated palpator in the posterior subtalar joint. Three sinus tarsi expansion screws of incremental diameter were assessed. Before and after insertion measurements were made of posterolateral and posteromedial talar exposure on the calcaneus, anteroposterior and lateromedial translation, and talocalcaneal joint-line opening.ResultsMedial rotation, varization and anterior translation of the calcaneus were comparable in all cases. Mean lateral opening of the posterior subtalar joint was 0.88 mm with 8-mm screws and 1.25 mm with 16-mm screws. Significant differences between 8 and 16 mm screws were found for lateral subtalar joint opening (P = 0.028) and for lateromedial translation (P = 0.004).ConclusionSinus tarsi expansion screwing corrects hindfoot valgus and talocalcaneal divergence by inducing medial translation of the calcaneus under the talus and talar medial rotation and varization, proportional to screw size (medial translation and lateral opening of the subtalar joint).Level of evidenceIII.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Orthopaedics & Traumatology: Surgery & Research - Volume 100, Issue 8, Supplement, December 2014, Pages S395–S399
نویسندگان
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