ArticleCase reports in orthopedics2026
Heterotopic Ossification at Tracker Pin Sites Following Robotic-Assisted Total Knee Arthroplasty.
Article in Case reports in orthopedics, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
1 citing paper in PubMed.
- Heterotopic Ossification at Tracker Pin Sites Following Robotic-Assisted Total Knee Arthroplasty.Case reports in orthopedics · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Case: A 72-year-old Caucasian man presented with left knee osteoarthritis and underwent Mako robotic-assisted total knee arthroplasty (TKA). Two months postoperatively, he complained of mild discomfort in his left quadriceps and limited flexion, with an active range of motion (ROM) from 0° to 60°. At 10 months, his ROM had not improved, and plain radiographs revealed a large, calcified mass in the distal femur, which appeared to be emanating from the tracker pin sites used during Mako robotic-assisted TKA, raising concern for heterotopic ossification (HO). He subsequently underwent excision of the HO and was started on indomethacin. Conclusion: Surgeons performing robotic-assisted TKAs should be aware of the potential for HO formation at tracker pin sites as a possible complication, particularly in patients presenting with postoperative stiffness.
Identifiers
What Socratic holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.