Porous spacers, instruments, and methods for foot and ankle fusion

US9220518B2 · kind B2 · utility

Assignee

• Zimmer, Inc. · US

Inventors

• David J. Neal · Oak Ridge, US
• Joseph P. Markham · Lakewood, US
• Victor Valderrabano · Therwil, CH
• Richard John Claridge · Scottsdale, US
• John Shirk Kirchner · Birmingham, US
• Mehul Dharia · Albuquerque, US
• Ray Zubok · Midland Park, US
• Greg Stebbins · Hoboken, US

Key dates

• Filing date: Apr 23, 2013
• Grant date: Dec 29, 2015
• Expiry date: Apr 23, 2033

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B17/1775
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Porous spacers (100) are provided for foot and ankle fusion. The porous spacers disclosed herein may be implanted between separate bones of a joint or between two segments of a single bone following an osteotomy procedure. Such spacers may be used in conjunction with an ankle resection system which includes a resection frame (150) and a resection guide (170). The resection frame can be anchored to the distal tibia and/or the talus and provides an opening (155) through which a bone cutting element can pass for cutting underlying bone. The resection guide can include one or more cutting slots (169, 171, 172) and the resection guide can be coupled to the resection frame with the one or more cutting slots positioned over the opening in the resection frame so that the bone cutting element can pass through the one or more cutting slots and through the opening in the resection frame for cutting the distal tibia and/or the talus.