ArticleCureus2025
Delayed Recognition of an Isolated Tear of the Posteromedial Bundle Following Anterior Cruciate Ligament Reconstruction: A Case Report.
Article in Cureus, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Isolated posteromedial bundle (PMB) injuries of the posterior cruciate ligament (PCL) are rare, often subtle, and easily missed on standard clinical tests and imaging. This case report highlights a delayed diagnosis of PMB injury in a 24-year-old male athlete presenting with persistent knee instability eight months following anterior cruciate ligament (ACL) reconstruction. Despite resolution of anterior laxity, the patient exhibited increased hyperextension, a pseudo-Lachman sign, and a tibiofemoral posterior step-off at 10-20° flexion, while 90° posterior drawer testing and MRI were unremarkable. These findings raised suspicion for isolated PMB injury, which was confirmed via diagnostic arthroscopy. The patient underwent nonanatomic PMB augmentation using a semitendinosus autograft with internal bracing. A structured rehabilitation protocol was followed, incorporating PCL-specific bracing, protected range of motion exercises, delayed hamstring activation, and a staged return to activity. At six months, the patient demonstrated full resolution of symptoms, with return to competitive sports by nine months. Validated functional outcome scores confirmed clinical improvement, including an International Knee Documentation Committee subjective score of 92.0 and a Tegner activity scale improvement from 4 (preoperative) to 7 (postoperative), reflecting return to high-level athletic activity. This case emphasizes the importance of recognizing underappreciated clinical signs of isolated PMB injury, particularly following hyperextension trauma. It underscores the limited sensitivity of MRI in chronic or partial PMB tears and advocates for diagnostic arthroscopy when clinical suspicion remains high. Diagnostic arthroscopy should be considered when clinical findings suggest subtle posterior instability, despite normal imaging results. Targeted PMB augmentation can restore extension stability and deliver excellent functional outcomes, even in delayed presentations.
Indexed as
Identifiers
What OpenQuestion 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 OpenQuestion graph.