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The Haglund imprint on the patella

J Graf¹, L Bernd, H G Simank

¹Department of Orthopaedic Surgery, University of Heidelberg, Germany.

International Orthopaedics

|December 1, 1993

Summary

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Haglund imprint on the patella, a common finding in knee radiographs, appears in 17.6% of cases. This variation has no diagnostic value and is unrelated to chondromalacia or patient demographics.

Area of Science:

Orthopedic imaging
Radiology
Knee anatomy

Background:

Haglund deformity is a bony enlargement on the posterior-superior aspect of the calcaneus.
The presence of a "Haglund imprint" on the patella has been anecdotally reported.
The clinical significance of a patellar Haglund imprint remains unclear.

Purpose of the Study:

To determine the incidence of Haglund imprint on the patella in knee radiographs.
To investigate the association between Haglund imprint and chondromalacia patellae.
To evaluate the correlation of Haglund imprint with patient demographics.

Main Methods:

Retrospective analysis of 705 knee radiographs.
Assessment for the presence or absence of Haglund imprint on the patella.

Related Experiment Videos

Comparison of incidence between patients with and without chondromalacia, and across age, sex, and body weight groups.

Main Results:

A Haglund imprint was identified in 17.6% of the examined knee radiographs.
The incidence of Haglund imprint was similar in patients with chondromalacia and in the control group.
No statistically significant differences were observed in incidence based on age, sex, or body weight.

Conclusions:

Haglund imprint on the patella is a common radiographic finding.
This finding represents a normal anatomical variation.
Haglund imprint on the patella does not hold diagnostic value for knee conditions like chondromalacia.