Zimmer Biomet A.L.P.S. Proximal Humerus System

A comprehensive set of Q&A flashcards covering instrumentation, implant options, color coding, drill sizes, plate characteristics, screw/peg specifications, and intra-operative tools for the Zimmer Biomet A.L.P.S. Proximal Humerus System.

What surgical approach / patient position is used for the A.L.P.S. proximal humerus system?

A 45° beach-chair position.

What anatomical angle is restored during fracture reduction with the system?

The 135° neck-shaft angle.

What driver size is used for all screws and pegs in the system?

T15 driver.

Which torque-limiting handle is recommended for screw or peg insertion?

Pink 2 Nm torque-limiting handle.

What adapter is attached when power tools are used for insertion?

Torque-limiting power adapter.

Which K-wire is used for central and calcar targeting?

2.0 mm × 152 mm K-wire (KW20SS).

What accessories aid in 2.0 mm K-wire targeting?

Short and long 2.0 mm K-wire adapters.

Into which hole is the first K-wire typically placed?

The calcar hole.

What is the diameter of proximal locking pegs?

3.2 mm.

What drill bit size is used for 3.2 mm locking pegs?

3.2 mm calibrated drill bit.

What length range is available for 3.2 mm locking pegs?

20 mm – 70 mm (in 2-mm increments).

What is the diameter of locking cortical screws used in the plate?

3.5 mm.

Which drill bit is used for 3.5 mm cortical locking screws?

2.7 mm calibrated drill bit.

What length range is offered for 3.5 mm cortical locking screws?

20 mm – 70 mm.

What is the diameter of locking cancellous screws in the system?

4.0 mm.

Which drill bit size is required for 4.0 mm locking cancellous screws?

2.7 mm calibrated drill bit.

What length range is stocked for 4.0 mm locking cancellous screws?

20 mm – 70 mm.

What is the diameter of low-profile non-locking shaft screws?

3.5 mm.

Which drill bit is used for 3.5 mm non-locking screws?

2.7 mm calibrated drill bit.

What length range is available for non-locking shaft screws?

20 mm – 70 mm.

What is the diameter of MDS (Multi-Directional Screws)?

3.5 mm.

What is the maximum cone of angulation permitted for an MDS screw?

25°.

What length range can MDS screws be ordered in?

20 mm – 70 mm.

Which color F.A.S.T. insert corresponds to 3.2 mm pegs?

Gold.

What tool(s) can be used to measure screw or peg length through the plate?

Shoulder Plate Depth Gauge or the appropriate measuring drill sleeve.

Name the two plate types available in the A.L.P.S. proximal humerus system.

High Plate and Low Plate.

How far distal to the greater tuberosity does the High Plate sit?

Approximately 1 cm distal to the GT.

How far distal to the greater tuberosity does the Low Plate sit?

Approximately 2 cm distal to the GT.

Which plate (high or low) provides two additional proximal screw holes for GT fixation?

High Plate.

Which plate design helps reduce the risk of subacromial impingement?

Low Plate (sits lower to improve ROM).

Which plate hole counts are pre-contoured for the deltopectoral interval?

7-, 11-, and 14-hole plates (both high and low versions).

What is the shortest low plate available in the set?

3-hole Low Plate (73 mm).

What is the longest low plate available in the set?

14-hole Low Plate (227 mm).

Relative to a low plate of the same hole count, how does a high plate compare in length?

It is slightly longer because of added proximal coverage.

Which plate provides the most anatomic coverage and screw options?

14-hole High Plate (234 mm, 1 cm from GT).

How much extra proximal coverage does a high plate offer over a low plate?

Approximately 1 cm.

How many extra proximal holes are found on a High Plate compared with a Low Plate?

Two extra proximal holes.

How can a surgeon quickly identify a left versus right plate in the OR?

By the F.A.S.T. Guide shaft-hole color: Left = Lime Green, Right = Rose Pink.

Which plate sizes support in-situ contouring with benders?

11-hole and 14-hole plates.

What instrument is used for plate contouring in the A.L.P.S. system?

Long Plate Benders with dual slots.

Which drill guide size is used as a soft-tissue sleeve for shaft holes?

2.7 mm soft-tissue drill guide.

Which measuring drill sleeve (size & color) is used to measure screw length?

2.7 mm measuring drill sleeve (silver).

Which measuring drill sleeve is used to determine peg length?

3.2 mm measuring drill sleeve.