MPR Alvarado Ball Joint Block

New MPR product!  Ball Joint Block for Alvarado knee positioner that, when combined with the MPR exclusive Universal Ball Joint Boot (MPR-BJBT), allows you to tilt, rotate, flex and extend the knee into infinite positions. 


Ball Joint Block and Ball Joint Boot can easily retrofit your existing Alvarado system.  Block is compatible with slotted hooks of standard Alvarado base plates.


Ball Joint Block shown with Ball Joint Boot below left,

combination on Base Plate shown below right

MPRAlavardoBJBootonBlock5 7 19 edit  MPRAlvaradoBJB 1 50820


Complete MPR Alvarado Positioner System with Ball Joint Block (1320-003) also available.


Made in USA. Trials available.


A stable, time-proven orthopaedic product.

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Additional Info

  • Unit of Measurement: Each
  • Catalog Number: 1320-BJB