Klute, Lisa and Pfeifer, Christian and Weiss, Isabella and Mayr, Agnes and Alt, Volker and Kerschbaum, Maximilian (2021) Displacement of the Greater Tuberosity in Humeral Head Fractures Does Not only Depend on Rotator Cuff Status. JOURNAL OF CLINICAL MEDICINE, 10 (18): 4136. ISSN , 2077-0383
Full text not available from this repository. (Request a copy)Abstract
It is assumed that dorsocranial displacement of the greater tuberosity in humeral head fractures is caused by rotator cuff traction. The purpose of this study was to investigate the association between rotator cuff status and displacement characteristics of the greater tuberosity in four-part humeral head fractures. Computed tomography scans of 121 patients with Neer type 4 fractures were analyzed. Fatty infiltration of the supra- and infraspinatus muscles was classified according to Goutallier. Position determination of the greater tuberosity fragment was performed in both coronary and axial planes to assess the extent of dorsocranial displacement. Considering non-varus displaced fractures, the extent of the dorsocranial displacement was significantly higher in patients with mostly inconspicuous posterosuperior rotator cuff status compared to advanced fatty degenerated cuffs (cranial displacement: Goutallier 0-1: 6.4 mm +/- 4.6 mm vs. Goutallier 2-4: 4.2 mm +/- 3.5 mm, p = 0.020; dorsal displacement: Goutallier 0-1: 28.4 degrees +/- 32.3 degrees vs. Goutallier 2-4: 13.1 degrees +/- 16.1 degrees, p = 0.010). In varus displaced humeral head fractures, no correlation between the displacement of the greater tuberosity and the condition of the posterosuperior rotator cuff could be detected (p >= 0.05). The commonly accepted theory of greater tuberosity displacement in humeral head fractures by rotator cuff traction cannot be applied to all fracture types.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | DEGENERATION; AGE; humeral head fracture; greater tuberosity; rotator cuff; fatty degeneration |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Unfallchirurgie |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 29 Aug 2022 07:29 |
| Last Modified: | 29 Aug 2022 07:29 |
| URI: | https://pred.uni-regensburg.de/id/eprint/46399 |
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