patella

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pa·tel·la

, gen. and pl.

pa·tel·lae

(pa-tel'ă, -ē), [TA]
The large sesamoid bone, in the combined tendon of the quadriceps femoris, covering the anterior surface of the knee.
Synonym(s): kneecap
[L. a small plate, the kneecap, dim. of patina, a shallow disk, fr. pateo, to lie open]
Farlex Partner Medical Dictionary © Farlex 2012

patella

(pə-tĕl′ə)
n. pl. pa·tellae (-tĕl′ē)
1.
a. A flat triangular bone located at the front of the knee joint. Also called kneecap.
b. A dish-shaped anatomical formation.
2. A pan or dish in ancient Rome.

pa·tel′lar, pa·tel′late (-tĕl′ĭt, -āt′) adj.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

pa·tel·la

, pl. patellae (pă-tel'ă, -ē) [TA]
The large sesamoid bone that covers the anterior surface of the knee. It is formed in the tendon of the quadriceps femoris muscle and is attached to the tibia by the patellar tendon.
Synonym(s): kneecap.
[L. a small plate, the kneecap, dim. of patina, a shallow disk, fr. pateo, to lie open]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

patella

The knee cap. The patella is a large triangular SESAMOID bone lying on front of the knee joint within the tendon of the QUADRICEPS FEMORIS group of muscles.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

patella

  1. the kneecap bone which is present in most mammals, and in some birds and reptiles, protecting the front of the joint from injury.
  2. the generic name of the LIMPET, Patella.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

Patella

The kneecap.
Mentioned in: Nail-Patella Syndrome
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
The other objective of this study was to compare the patients with chondroma lacia patellae (chondromalacia group) and the patients with a normal cartilage (normal group), whether there was a significance difference in the distribution of five patellar maltracking measurements.
To quantify the discrepancies of the final selected configuration, the axial resection (AR), sagittal resection (SR), axial surface (AS), and sagittal surface (SS) results were each sorted into three categories: (1) patellae for which the contact-based plane was within the range of surgeon averages for that specimen, (2) patellae for which this plane was within the overall range of surgeon angles for that specimen, and (3) patellae for which the plane fell outside the range of surgeon input for that specimen.
Materials used included 40 human patellae of the Iraqi ethnicity; both age and gender were unknown.
Radiographs of both knees (AP and Lateral) showed absence of both patellae and mild genu valgum deformity.
Therefore, all Type 3 patellae, with their flat, horizontal patellar cartilage will have abnormal tilt angles.
Legs: Femora 1.35 (0.09), 3.26 (0.31), 1.28 (0.08), 2.15 (0.13); patellae 0.60 (0.07), 0.85 (0.09), 0.54 (0.12), 0.66 (0.03); tibiae 1.27 (0.12), 3.09 (0.19), 1.17 (0.09), 1.67 (0.10).
The resulting radiograph clearly delineates both patellae. (See Fig.
At age 11, patellae were palpated in a partially dislocated position on both sides.
As mentioned previously, alterations in the coronal plane can have profound effects on the quadriceps angle, and these often can be visualized with the patient standing; they include genu valgum, a bayonet tibia, squinting or inward facing patellae, and the miserable malalignment syndrome.
5): femora with series of short setae on prolateral and ventral surfaces; 1 short macroseta on disto-dorsal margin of patellae; paired, long macrosetae on prolateral and retrolateral tibial surface.
Petty, "Two cases of abnormal patellae," British Journal of Surgery, vol.
Roentgenographic and anatomic studies on the femoropatellar joint, with special reference to chondromalacia patellae. Acta orthop Scand 1941;12:319-410.