Trial Neck and Trial Femoral Head
Also called Trial neck segment, Trial head, Femoral head trials, Head/neck trial
- Type
- Specialty
Trial neck segments and trial heads that fit on the broach post (trunnion) left in the femur. Necks come in standard and high-offset versions for each stem size; head trials come in several diameters, each with 5 or 6 length options, color-coded.
Primary uses
What this instrument is on the table to do.
Trial reduction during total hip arthroplasty. With the final broach left in, the trial neck and trial head are put on the broach post, the hip is reduced and checked for stability, range of motion, leg length and offset. Different heads and necks are tried until it is right; the sizes are noted for the real implants.
Sizes & variants
The lengths, angles and patterns it comes in.
DePuy Synthes ACTIS: standard and high-offset trial necks paired by stem size (for example 2010-02-100 STD NK SZ0/1, 2010-02-150 HIGH NK SZ0/1); femoral head trials in 28, 32, 36 and 40 mm, with lengths such as -2 (rust), +1.5 (green), +5 (brown), +8.5 (blue), +12 (black), +15.5 (natural); two diameter sets fit in the broach case.
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- Cautions, inspection checks, how to pass it, and every operation it is laid out for
- Every setup this instrument is laid out on, with photos of each table
- Flashcards that bring it back right before you would forget it
- Practice tests and timed exams over all 259 setups
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