Superolateral Hoffa's fat pad edema

Association with patellofemoral maltracking and impingement

Ty Subhawong, John Eng, John A. Carrino, Avneesh Chhabra

Research output: Contribution to journalArticle

53 Citations (Scopus)

Abstract

OBJECTIVE. Nonelderly patients presenting with knee pain often have patellofemoral maltracking or impingement abnormalities. There is a relative paucity of literature on the incidence and significance of impingement-related edema of the superolateral aspect of Hoffa's (infrapatellar) fat pad in these cases. Our study was designed to systematically evaluate the correlation of superolateral Hoffa's fat pad edema with various anatomic parameters of trochlear morphology and patellar alignment. MATERIALS AND METHODS. We evaluated 50 knee MRI examinations in 47 patients for the presence of edema in superolateral Hoffa's fat pad and associated anatomic abnormalities of the patellofemoral joint. RESULTS. Of the 50 examinations, 25 (50%) showed superolateral Hoffa's fat pad edema, and statistically significant differences were seen between those with and without edema with respect to sex (6/22 men vs 19/28 women) and patellar tendon patellar-length ratio (1.3 ± 0.16 and 1.1 ± 0.12 for those with and without edema, respectively). CONCLUSION. The findings in our study suggest that edema in superolateral Hoffa's fat pad may be an important indicator of underlying patellofemoral maltracking or impingement in younger, symptomatic patients.

Original languageEnglish
Pages (from-to)1367-1373
Number of pages7
JournalAmerican Journal of Roentgenology
Volume195
Issue number6
DOIs
StatePublished - Dec 1 2010
Externally publishedYes

Fingerprint

Adipose Tissue
Edema
Knee
Patellofemoral Joint
Patellar Ligament
Pain
Incidence

Keywords

  • Hoffa's fat pad edema
  • Infrapatellar fat pad
  • Malalignment
  • Patellofemoral impingement

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

Cite this

Superolateral Hoffa's fat pad edema : Association with patellofemoral maltracking and impingement. / Subhawong, Ty; Eng, John; Carrino, John A.; Chhabra, Avneesh.

In: American Journal of Roentgenology, Vol. 195, No. 6, 01.12.2010, p. 1367-1373.

Research output: Contribution to journalArticle

Subhawong, Ty ; Eng, John ; Carrino, John A. ; Chhabra, Avneesh. / Superolateral Hoffa's fat pad edema : Association with patellofemoral maltracking and impingement. In: American Journal of Roentgenology. 2010 ; Vol. 195, No. 6. pp. 1367-1373.
@article{7b0380c6276343c19393eb24008b1d29,
title = "Superolateral Hoffa's fat pad edema: Association with patellofemoral maltracking and impingement",
abstract = "OBJECTIVE. Nonelderly patients presenting with knee pain often have patellofemoral maltracking or impingement abnormalities. There is a relative paucity of literature on the incidence and significance of impingement-related edema of the superolateral aspect of Hoffa's (infrapatellar) fat pad in these cases. Our study was designed to systematically evaluate the correlation of superolateral Hoffa's fat pad edema with various anatomic parameters of trochlear morphology and patellar alignment. MATERIALS AND METHODS. We evaluated 50 knee MRI examinations in 47 patients for the presence of edema in superolateral Hoffa's fat pad and associated anatomic abnormalities of the patellofemoral joint. RESULTS. Of the 50 examinations, 25 (50{\%}) showed superolateral Hoffa's fat pad edema, and statistically significant differences were seen between those with and without edema with respect to sex (6/22 men vs 19/28 women) and patellar tendon patellar-length ratio (1.3 ± 0.16 and 1.1 ± 0.12 for those with and without edema, respectively). CONCLUSION. The findings in our study suggest that edema in superolateral Hoffa's fat pad may be an important indicator of underlying patellofemoral maltracking or impingement in younger, symptomatic patients.",
keywords = "Hoffa's fat pad edema, Infrapatellar fat pad, Malalignment, Patellofemoral impingement",
author = "Ty Subhawong and John Eng and Carrino, {John A.} and Avneesh Chhabra",
year = "2010",
month = "12",
day = "1",
doi = "10.2214/AJR.10.4668",
language = "English",
volume = "195",
pages = "1367--1373",
journal = "AJR. American journal of roentgenology",
issn = "0361-803X",
publisher = "American Roentgen Ray Society",
number = "6",

}

TY - JOUR

T1 - Superolateral Hoffa's fat pad edema

T2 - Association with patellofemoral maltracking and impingement

AU - Subhawong, Ty

AU - Eng, John

AU - Carrino, John A.

AU - Chhabra, Avneesh

PY - 2010/12/1

Y1 - 2010/12/1

N2 - OBJECTIVE. Nonelderly patients presenting with knee pain often have patellofemoral maltracking or impingement abnormalities. There is a relative paucity of literature on the incidence and significance of impingement-related edema of the superolateral aspect of Hoffa's (infrapatellar) fat pad in these cases. Our study was designed to systematically evaluate the correlation of superolateral Hoffa's fat pad edema with various anatomic parameters of trochlear morphology and patellar alignment. MATERIALS AND METHODS. We evaluated 50 knee MRI examinations in 47 patients for the presence of edema in superolateral Hoffa's fat pad and associated anatomic abnormalities of the patellofemoral joint. RESULTS. Of the 50 examinations, 25 (50%) showed superolateral Hoffa's fat pad edema, and statistically significant differences were seen between those with and without edema with respect to sex (6/22 men vs 19/28 women) and patellar tendon patellar-length ratio (1.3 ± 0.16 and 1.1 ± 0.12 for those with and without edema, respectively). CONCLUSION. The findings in our study suggest that edema in superolateral Hoffa's fat pad may be an important indicator of underlying patellofemoral maltracking or impingement in younger, symptomatic patients.

AB - OBJECTIVE. Nonelderly patients presenting with knee pain often have patellofemoral maltracking or impingement abnormalities. There is a relative paucity of literature on the incidence and significance of impingement-related edema of the superolateral aspect of Hoffa's (infrapatellar) fat pad in these cases. Our study was designed to systematically evaluate the correlation of superolateral Hoffa's fat pad edema with various anatomic parameters of trochlear morphology and patellar alignment. MATERIALS AND METHODS. We evaluated 50 knee MRI examinations in 47 patients for the presence of edema in superolateral Hoffa's fat pad and associated anatomic abnormalities of the patellofemoral joint. RESULTS. Of the 50 examinations, 25 (50%) showed superolateral Hoffa's fat pad edema, and statistically significant differences were seen between those with and without edema with respect to sex (6/22 men vs 19/28 women) and patellar tendon patellar-length ratio (1.3 ± 0.16 and 1.1 ± 0.12 for those with and without edema, respectively). CONCLUSION. The findings in our study suggest that edema in superolateral Hoffa's fat pad may be an important indicator of underlying patellofemoral maltracking or impingement in younger, symptomatic patients.

KW - Hoffa's fat pad edema

KW - Infrapatellar fat pad

KW - Malalignment

KW - Patellofemoral impingement

UR - http://www.scopus.com/inward/record.url?scp=78649749123&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=78649749123&partnerID=8YFLogxK

U2 - 10.2214/AJR.10.4668

DO - 10.2214/AJR.10.4668

M3 - Article

VL - 195

SP - 1367

EP - 1373

JO - AJR. American journal of roentgenology

JF - AJR. American journal of roentgenology

SN - 0361-803X

IS - 6

ER -