X-pander: Surgical Procedure

1) Reaming is performed according to usual procedure. In this example the final reamer size is 54mm.

2) A Measuring Head of corresponding size (ø54mm) is chosen.

3) The Measuring Head is attached to the handle via a click-on function.

4) The Handle is turned until the Measuring Head acheives satisfactory fixation.

5) The actual acetabular diameter is read from the scale (in this case +2 means ø56mm).

6) A cup is inserted according to usual procedure (in this case a 56mm shell) and proper primary stability is acheived.

Dynamic force-trialing of the acetabulum

X-pander increases intra-operative precision and guides surgeon decisions in 33% of total hip replacements, documented here.

 

Live surgery using X-pander

 

 

Animation video

 

Product Description

X-pander is a novel intra-operative acetabular preparation guide and sizing system, guiding surgeons to obtain the best possible cup/acetabulum fit in total hip replacements with cementless cup. The accurate measurement, performed in only seconds, supplements the surgeon’s best educated guess by revealing the reamed acetabular geometry and patient specific bone quality, which are essential factors for obtaining optimal primary cup stability. X-pander can be used with any major label cup system and is highly regarded for its impact on surgical precision, especially for:

 

1. Revision surgery and complex primary cases: In these procedures
   X-pander is a reliable decision aid for even experienced surgeons to quickly obtain the best possible acetabular fit – adjusted for bonestock and dynamic biomechanical properties
2. Junior surgeons/residents: Less experienced surgeons generally find that X-pander accelerates their learning curve of mastering the cup insertion by eliminating concerns of primary cup stability.

 

X-pander Components

X-pander consists of a reusable steel Handle and a disposable polymer Measuring Head, resembling a porous coated cup, that attaches to the handle with an easy “click-on” function.

 

By manually turning the Handle part, the Measuring Head can expand its diameter up to 3mm and is available in 11 individual sizes with 2mm increments, covering the span from 46mm – 69mm in diameter.