MPR Universal Ball Joint Boot

New MPR product!  Boot, or splint assembly, for Alvarado knee positioner or MIKP positioner that features an integrated ball joint component.  Combined with an MPR exclusive Ball Joint Block, the Univeral Ball Joint Boot allows you to tilt, rotate, flex and extend the knee into infinite positions. 


The Universal Ball Joint Boot and the appropriate Ball Joint Block (1320-BJB for Alvarado) can easily retrofit your existing standard positioning systems. The Universal Ball Joint Boot and the appropriate Ball Joint Block (MPR-MIKP-BJ-2) can fit on the improved MIKP positioner.


Boot constructed of aluminum.


Universal Ball Joint Boot shown with Alvarado Ball Joint Block below left,

combination on Base Plate shown below right; Improved MIKP Ball Joint Block

shown 2nd row left, and combination with Universal Ball Joint Boot on

Improved MIKP Base Plate shown row right.

MPRAlavardoBJBootonBlock5 7 19 edit  MPRAlvaradoBJB 1 50820


 MIKPNewBlock6 15 20 v2       MIKPNewBootTurned6 15 20


Complete MPR Alvarado Positioner System with Ball Joint Block and

MPR MIKP with Ball Joint Block (MPR-MIKP-BJB-2 and MPR-MIKP-BJ-2, respectively) also available.


Retrofit your existing system

Universal Ball Joint Boot also available separately to retrofit your existing knee positioner.  The boot is compatible with similar systems from other manufacturers (including the IMP® DeMayo Positioner). Upgrades/replacements for Blocks, Base Plates, Locking Clamps, and Stabilizing Plates also available. Contact us for specific details.


MPR All-In-One Socket also available (MPR-CS-AIO, shown alone below left, and with MIKP/Locking Clamp below right).

MPR AIO CSRailCU     MIKPNewPlateBlockAlt6 15 20


MPR Universal Ball Joint Boot shown below on IMP® DeMayo Positioner.




CLICK HERE for cleaning instructions.


Made in USA. Trials available.


A stable, time-proven orthopaedic product.

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Additional Info

  • Unit of Measurement: Each
  • Catalog Number: MPR-BJBT