Peer-reviewedCC BY-NCArthroscopy techniques
A Technique to Determine Coordinates of the Patellar Entry Point and Transition Point of the Patellofemoral Joint Using Computed Tomography Scans.
- 1Yale Department of Orthopaedics and Rehabilitation New Haven Connecticut U.S.A.
- 2Northwell Orthopedics Tarrytown New York U.S.A.
Abstract
Patellas of patellofemoral instability patients typically have more lateral entry points into their proximal trochleas. They also generally have more shallow or convex proximal trochlear grooves, leading to trochlear transition points where the grooves straighten distally. In this technique article, we describe a method using standardized imaging software and computed tomography scans to measure coordinates of the entry point and transition point and show its reliability across numerous knees and raters. This method will increase understanding of the proximal trochleas of patellofemoral instability and arthritis patients, thereby helping to guide optimal treatment.
Related
- The Boston All‐in‐One Medial Patellofemoral Complex Reconstruction: A Combined Medial Patellofemoral Ligament and Medial Quadriceps Tendon Femoral Ligament Dynamic Tensioning Technique Using Allograft
- The inwardly pointing knee angle: A novel computed tomography‐based measurement technique and validation study
- Image-based robotic-assisted patellofemoral arthroplasty for isolated patellofemoral osteoarthritis: Short-term survivorship, clinical and radiographic outcomes
- Return‐to‐Sport Assessment After Medial Patellofemoral Ligament Reconstruction Shows Substantial Variability in Objective Criteria
- Sex‐Differences in Infrapatellar Fat Pad Size in Runners After Knee Surgery and Associations With Patellofemoral‐Related Symptoms: TRAIL Cohort Cross‐Sectional Study
BibTeX
@article{kim2026technique,
title = {{A Technique to Determine Coordinates of the Patellar Entry Point and Transition Point of the Patellofemoral Joint Using Computed Tomography Scans.}},
author = {Lucas Y Kim and Jonathan Salandra and Johannes Sieberer and Kevin G Girardi and Jim C Hsu and John P Fulkerson},
journal = {Arthroscopy techniques},
year = {2026},
month = oct,
doi = {10.1002/atn2.70289},
url = {https://europepmc.org/article/MED/42923304},
note = {CC BY-NC},
}
RIS
TY - JOUR
TI - A Technique to Determine Coordinates of the Patellar Entry Point and Transition Point of the Patellofemoral Joint Using Computed Tomography Scans.
AU - Lucas Y Kim
AU - Jonathan Salandra
AU - Johannes Sieberer
AU - Kevin G Girardi
AU - Jim C Hsu
AU - John P Fulkerson
PY - 2026
DA - 2026/10/22
JO - Arthroscopy techniques
DO - 10.1002/atn2.70289
UR - https://europepmc.org/article/MED/42923304
AB - Patellas of patellofemoral instability patients typically have more lateral entry points into their proximal trochleas. They also generally have more shallow or convex proximal trochlear grooves, leading to trochlear transition points where the grooves straighten distally. In this technique article, we describe a method using standardized imaging software and computed tomography scans to measure coordinates of the entry point and transition point and show its reliability across numerous knees and raters. This method will increase understanding of the proximal trochleas of patellofemoral instability and arthritis patients, thereby helping to guide optimal treatment.
SN - 2212-6287
ER -