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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Correlation Between Trochlear Groove Depth and Patellar Position During Open and Closed Kinetic Chain Exercises in Subjects With Anterior Knee Pain

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Author(s):
Felicio, Lilian Ramiro [1] ; Saad, Marcelo Camargo [1] ; Liporaci, Rogerio Ferreira [2] ; Baffa, Augusto do Prado [3] ; dos Santos, Antonio Carlos [4] ; Bevilaqua-Grossi, Debora [5]
Total Authors: 6
Affiliation:
[1] Univ Sao Paulo, Program Orthoped Traumatol & Rehabil, Ribeirao Preto Sch Med, Sao Paulo - Brazil
[2] Univ Sao Paulo, Dept Clin Med Biomed Invest, Sao Paulo - Brazil
[3] Univ Sao Paulo, Program Neurosci, Ribeirao Preto Sch Med, Sao Paulo - Brazil
[4] Univ Sao Paulo, Diagnost Imaging Sect, Ribeirao Preto Sch Med, Dept Clin Med, Sao Paulo - Brazil
[5] Univ Sao Paulo, Dept Biomech Med & Rehabil Locomotor Apparatus, Ribeirao Preto Sch Med, Sao Paulo - Brazil
Total Affiliations: 5
Document type: Journal article
Source: JOURNAL OF APPLIED BIOMECHANICS; v. 28, n. 3, p. 335-342, JUL 2012.
Web of Science Citations: 2
Abstract

The purpose of this study was to correlate the trochlear shape and patellar tilt angle and lateral patellar displacement at rest and maximal voluntary isometric contraction (MVIC) exercises during open (OKC) and closed kinetic chain (CKC) in subjects with and without anterior knee pain. Subjects were all women, 20 who were clinically healthy and 19 diagnosed with anterior knee pain. All subjects were evaluated and subjected to magnetic resonance exams during OKC and CKC exercise with the knee placed at 15, 30, and 45 degrees of flexion. The parameters evaluated were sulcus angle, patellar tilt angle and patellar displacement using bisect offset. Pearson's r coefficient was used, with p < .05. Our results revealed in knee pain group during CKC and OKC at 15 degrees that the increase in the sulcus angle is associated with a tilt increase and patellar lateral displacement. Comparing sulcus angle, patellar tilt angle and bisect offset values between MVIC in OKC and CKC in the knee pain group, it was observed that patellar tilt angle increased in OKC only with the knee flexed at 30 degrees. Based on our results, we conclude that reduced trochlear depth is correlated with increased lateral patellar tilt and displacement during OKC and CKC at 15 degrees of flexion in people with anterior knee pain. By contrast, 30 degrees of knee flexion in CKC is more recommended in rehabilitation protocols because the patella was more stable than in other positions. (AU)