Cochlear implant magnet extrusion with subsequent surgical replacement and restoration of full implant use without the need for device explantation
Bibliographic record
Abstract
OBJECTIVE AND IMPORTANCE: We recount the unusual case of a young boy whose removable cochlear implant magnet extruded through the skin after becoming displaced after several episodes of direct but minor head trauma. This article outlines a course of clinical management that resulted in the successful re-implantation of a new magnet without infective sequelae and the need for device explantation. CLINICAL PRESENTATION: The child presented with recurrent erythema and swelling at the implant site. In retrospect, subtle magnet displacement was not readily identified on initial imaging. The external magnet required an increase in strength while local swelling settled, but subsequently had to be reduced as the magnet was drawn gradually to the skin surface. Full extrusion took place, but in the absence of any obvious infection, the site healed quickly. INTERVENTION AND TECHNIQUE: The external device was retained with a self-adhesive disc for 1 year, during which time the patient was observed closely for signs of local infection. The child was subsequently admitted for surgical re-exploration and insertion of a new magnet. Care was taken to re-establish the integrity of the fibrous pocket that surrounded the cochlear implant. CONCLUSION: This uneventful intervention was followed by the resumption of full and unimpaired implant use. At the time of this article submission, the child is now 5 years post-extrusion and continues to do well in full-time education.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.005 |
| Meta-epidemiology (narrow) | 0.002 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.002 | 0.002 |
| Scholarly communication | 0.001 | 0.002 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.003 | 0.003 |
| Insufficient payload (model declined to judge) | 0.002 | 0.001 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".