Bioabsorbable Implants for Fixation of Scarf and Akin Osteotomies and PIP-Arthrodesis

Panarab 2010 Marrakech Bioabsorbable Implants for Fixation of Scarf and Akin Osteotomies and PIP-Arthrodesis A 5 year prospective study Lactosorb ( 82 % Polylactate , 12 % Polygluconate ) Biomet www.oza-m.de Munich Germany Christian A. Kinast , P. Bouliopoulos, J. Hamel, M. Olos

5 Year Radiographic follow up C.Kinast - Munich Germany Questions: 1. Longterm adverse reactions due to the Lactosorb material ? 2. Is the screw bioabsorbable?

5 Year Radiographic follow up C.Kinast - Munich Germany 1. No cystic lesions 2. No screwholes visible
Conclusion:
No adverse reactions
Screws are replaced by bone

Scarf-Osteotomy: Technique C.Kinast - Munich Germany N : 59

Material and Methods implants : 2,5 Implant- material: 82 % polylactate, 18% polygluconate one surgeon, follow up visits: 2, 6, 12 weeks, 6, 12 month 5 years radiographs standing ap and lat. 59 feet 59 scarf 2 x 2,5 mm Lactosorb screws 53 Akin 1x 2,5 mm Lactosorb screw 35 PIP arthrodesis 1,5 mm Lactosorb pin x = 57 y C.Kinast - Munich Germany

Scarf-Osteotomy : Results Follow-up > 5 y: AOFAS forefoot-Score ( Kitaoka ) Preop 52 1 year 90 5 year 92 C.Kinast - Munich Germany

Scarf-Osteotomy: IM Angle Follow-up > 5 y: IM Angle Mitchel Preop 14° 1 year 7° 5 year 7° C.Kinast - Munich Germany

C.Kinast - Munich Germany S.H. S.H. Radiographic follow up: 0 – 5 years 6 w 1 y 5 y

Radiographic follow up: 0 – 5 years C.Kinast - Munich Germany V.M. 6 w 1 y 5 y

PIP Arthrodesis with 1.5mm Lactosorb-Pin C.Kinast - Munich Germany V.M. 52 %

Recurrance C.Kinast - Munich Germany 14 % HV >15 ° IM > 10°

Recurrance in scarf osteotomies C.Kinast - Munich Germany CT analysis in a later series fracture of basis of M 1 might be the reason for early recurrance

Modification of the scarf-osteotomie C.Kinast - Munich Germany

Forefoot-reconstruction with bioabsorbable implants AOFAS Summer Meeting 2004 2008 Iffas C. Kinast, P. Bouliopulos , J. Hamel Munich Germany email :ckinast@footcenter.de 1996 - 2008 2001 2008 No implant removal, no adverse reactions, replaced by bone

M1 Z 1 osteotomy Lactosorb a. MIS WEIL 2 3; M 5 osteotomy MIS toes 2-5 2009 -2010-F.B. 2010: open 1 ray reconstruction with resorbable screws MIS toes and MIS M2-5 osteotomies www.oza-m.de

Orthopedic Center Arabellapark Munich Germany center for foot and ankle center for hip center hand and elbow center for spine and pain therapy www.oza-m.de

Bioabsorbable Implants for Fixation of Scarf and Akin Osteotomies and PIP-Arthrodesis

by Christian Arno Kinast on Jan 11, 2012

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Bioabsorbable Implants for Fixation of Scarf and Akin Osteotomies and PIP-Arthrodesis — Presentation Transcript