Long oblique ulna shortening osteotomy jig

• US 6,689,139 B2
• Filed: 02/15/2002
• Issued: 02/10/2004
• Est. Priority Date: 02/15/2002
• Status: Expired due to Fees

• Current Assignee: Paul C. Horn
• Original Assignee: Paul C. Horn
• Inventors: Horn, Paul C.
• Primary Examiner(s): O'Connor, Cary E.
• Assistant Examiner(s): Melson, Candice C.
• Application Number:
  US10/075,237
• Publication Number:
  US 20030158558A1
• Time in Patent Office: 725 Days
• Field of Search: 606/87, 606/88, 606/89, 606/96, 606/97, 606/98, 606/86, 606/53
• US Class Current: 606/87
• CPC Class Codes: A61B 17/15 Guides therefor arrangements for guiding straight saw blades in general B23D51/025
• CPC Class Codes: A61B 17/151 for corrective osteotomy

Abstract

An ulnar osteotomy jig and method for use of said jig for the correction of ulnar impaction syndrome. The jig in cross section is shaped substantially like a right triangle. It has a flat top, a concave bottom which is adapted to closely conform to the surface of an ulna, two flat leg surfaces, and a flat hypothenuse surface. Two holes are defined in the jig and extend between the top and bottom surfaces. When in use, the jig is secured to an ulna with two surgical screws which pass through the holes defined in the jig. A surgeon cuts the ulna with a bone saw into two pieces using the hypothenuse side of the jig as a guide. The two cut ends of the ulna pieces will be repositioned, thereby adjusting the ulna to the proper length and the ulnar pieces will then be secured together with surgical screws.

Claims

1. A long oblique ulna shortening osteotomy jig, comprising:

a jig body having a longitudinal cross-section shaped like a substantially right triangle, a flat top surface, a concave bottom surface adapted to closely conform to the surface of an ulna bone, a flat hypothenuse side surface, a first flat leg side surface, a second flat leg side surface and two holes defined between the top surface and the bottom surface.

2. A long oblique ulna shortening osteotomy jig according to claim 1, further comprising:

a flat portion adjacent to one leg on the bottom surface of said jig body;

whereby said flat surface is adapted to overhang the edge of a bone when said jig is attached to the bone.

3. A method of surgically correcting ulnar impaction syndrome, comprising the steps of:

a) providing a jig having a longitudinal cross-section shaped like a substantially right triangle, a flat top surface, a concave bottom surface adapted to closely conform to the surface of an ulna bone, a flat hypothenuse side surface, a first flat leg side surface, a second flat leg side surface and two holes defined through the jig and extending between the top surface and the bottom surface;

b) placing the bottom surface of said jig securely against the ulna to be operated on with the concave bottom surface conforming to the surface of the ulna;

c) securing said jig to the ulna with two surgical screws positioned in the holes defined in said jig;

d) obliquely cutting said ulna into two pieces with a bone saw using the hypothenuse side of said jig as a cutting guide;

e) removing said jig from the ulna;

f) sliding the two pieces of the ulna past one another such that the overall length of the ulna is shortened to alleviate the symptoms of ulnar impaction syndrome; and

g) securing the pieces of said ulna together with a plurality of countersunk surgical screws.