Abductor tendon tears are associated with hypertrophy of the tensor fasciae latae muscle
Aged, 80 and over
Male
Hip
610 Medicine & health
Hypertrophy
Middle Aged
Magnetic Resonance Imaging
03 medical and health sciences
0302 clinical medicine
Tendon Injuries
Fascia Lata
2741 Radiology, Nuclear Medicine and Imaging
Humans
10046 Balgrist University Hospital, Swiss Spinal Cord Injury Center
Female
Muscle, Skeletal
Aged
Retrospective Studies
DOI:
10.1007/s00256-012-1514-2
Publication Date:
2012-08-31T10:38:50Z
AUTHORS (6)
ABSTRACT
To evaluate the association between hypertrophy of the tensor fasciae latae muscle and abductor tendon tears.Thirty-five patients who underwent MRI of the abductor tendons of the hip were included in this retrospective study. A subgroup of 18 patients was examined bilaterally. The area of the tensor fasciae latae muscle and the area of the sartorius muscle (size reference) were quantified at the level of the femoral head, and a ratio was calculated. Two radiologists assessed the integrity of the gluteus medius and minimus tendon in consensus. Data were analyzed with a Mann-Whitney U test.Sixteen out of 35 patients (46 %) had a tear of the gluteus medius or minimus tendon. The ratio of the area of the tensor fasciae latae to the sartorius muscle was significantly higher (p = .028) in the group with an abductor tendon tear (median 2.25; Interquartile Range [IQR] = 1.97-3.21) compared to the group without any tears (median 1.91; IQR = 1.52-2.26). The bilateral subanalysis showed that in patients without a tear, the ratio of the two areas did not differ between each side (p = .966), with a median of 1.54 (primary side) and 1.76 (contralateral side). In patients with an abductor tendon tear the ratio was significantly higher (p = .031) on the side with a tear (median 2.81) compared to the contralateral healthy side (1.67).Patients with abductor tendon tears showed hypertrophy of the tensor fasciae latae muscle when compared to the contralateral healthy side and to patients without a tear.
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