MRI of pectoralis major tears: association between ancillary findings and tear severity.
Skeletal Radiol
; 47(8): 1127-1135, 2018 Aug.
Article
en En
| MEDLINE
| ID: mdl-29426957
ABSTRACT
OBJECTIVE:
To evaluate the significance of biceps tendon (BT) displacement and peri-bicipital hematoma on MRI in subjects with pectoralis major (PM) tears. We hypothesized that these features might be associated with tear severity at surgery. MATERIALS ANDMETHODS:
We retrospectively identified MRI cases with PM injury and reviewed clinical, imaging, and surgical records. MR images were reviewed independently by two musculoskeletal radiologists to determine anterior displacement of BT (BT-disp, in mm) and the presence of triangular-shaped peri-bicipital hematoma. Data were compared with an age- and sex-matched control group and correlated with surgical reports grouped by tear severity.RESULTS:
We identified 46 subjects with PM injury (43 men, 3 women; mean age 34 ± 9 years), 26 of whom underwent surgical reconstruction, and 20 matched controls (P > 0.2). BT-disp was significantly higher in PM injury vs controls (P = 0.003), and in tendon vs myotendinous (MT) junction PM tears (P < 0.0001); however, MT junction tears vs controls were similar (P = 0.98). Higher BT-disp and presence of peri-bicipital hematoma correlated significantly with surgical reports describing full-thickness complete tears. BT-disp > 4.5 mm had 86% sensitivity and 75% specificity to detect the most severe tears on surgical reports, whereas the presence of peri-bicipital hematoma was the strongest predictor among both parameters.CONCLUSION:
Anterior BT displacement and peri-bicipital hematoma are helpful indicators of full-thickness complete tears at the humeral insertion.Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Músculos Pectorales
/
Rotura
Tipo de estudio:
Diagnostic_studies
/
Etiology_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Límite:
Adult
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Female
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Humans
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Male
/
Middle aged
Idioma:
En
Revista:
Skeletal Radiol
Año:
2018
Tipo del documento:
Article
País de afiliación:
Estados Unidos