Evidence map›Paper›PMID 42116974›Full record

ArticleCureus2026

Periprosthetic Distal Femoral Fracture Following Total Knee Arthroplasty Associated With Anterior Femoral Notching: A Case Report.

Nay Aung Zin, Thiha Zaw, Sandar Shune Let Aung, Min Maung Maung, Htoo Aung Naing Shwe, Tun Tun

Abstract readCase Reports
In one paragraph

Article in Cureus, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Nay Aung ZinOrthopaedics and Traumatology, Kulhudhuffushi Regional Hospital, Kulhudhuffushi, MDV.
Thiha ZawOrthopaedics and Traumatology, Mediland UHC Hospital, Yangon, MMR.
Sandar Shune Let AungAnaesthesiology, Indira Gandhi Memorial Hospital, Malé, MDV.
Min Maung MaungOrthopaedics and Trauma, Central Clinic, Malé, MDV.
Htoo Aung Naing ShweOrthopaedics and Trauma, Himmafushi Health Center, Himmafushi, MDV.
Tun TunOrthopaedics and Trauma, University of Medicine, Mandalay, Mandalay, MMR.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Periprosthetic distal femoral fractures are uncommon but potentially serious complications following total knee arthroplasty (TKA). Several patient-related and surgical factors contribute to their occurrence, including osteoporosis, trauma, implant malalignment, and technical factors such as anterior femoral notching. Femoral notching, caused by violation of the anterior femoral cortex during femoral preparation, has been suggested to weaken the structural integrity of the distal femur and increase susceptibility to fracture. However, the association between femoral notching and periprosthetic fracture remains controversial. We report the case of a 47-year-old woman who developed a periprosthetic distal femoral fracture following bilateral TKA. Radiographic evaluation demonstrated a supracondylar femoral fracture adjacent to the femoral component with evidence of anterior femoral notching. The patient presented with acute knee pain and functional limitation during early postoperative rehabilitation. Surgical fixation was performed, followed by a structured rehabilitation program. This case highlights the potential biomechanical implications of anterior femoral notching during TKA. Although periprosthetic fractures are multifactorial in origin, cortical violation may act as a stress riser that predisposes the distal femur to fracture. Careful surgical technique and vigilant postoperative monitoring may help reduce the risk of this complication.

Indexed as

bilateral knee surgeryearly postoperative complicationsfemoral notchingfracture fixationjoint replacement complicationsnotching and fracture riskorthopedic surgeryperi-prosthesis fracturerehabilitation in tkrtotal knee replacement

Identifiers

PMID42116974
PMCPMC13157617

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.