Shoulder Muscle Volume Changes After Surgery
Author Information
Author(s): Muacevic Alexander, Adler John R, Nagawa Keita, Hara Yuki, Kakemoto Shinji, Shiratori Taira, Kaizu Akane, Koyama Masahiro, Inoue Kaiji, Sakaguchi Katsunobu, Kozawa Eito
Primary Institution: Saitama Medical University, Saitama, JPN
Hypothesis
This study aims to evaluate serial changes in shoulder muscle volume and CT density after Bankart repair surgery in patients with anterior shoulder instability.
Conclusion
Shoulder muscle volume and CT density decreased in the early postoperative period but recovered by the late postoperative period.
Supporting Evidence
- Muscle volume and CT density decreased at 1 month postoperatively compared to preoperative values.
- Mean VRSsc/Isp+TM decreased in all sections at 1 month postoperatively but increased afterward.
- Perioperative differences in muscle volume correlated with sex, work and sports activity level, and Hill-Sachs lesion.
Takeaway
Doctors looked at how shoulder muscles changed after surgery. At first, the muscles got smaller, but they got bigger again later.
Methodology
Four consecutive CT scans of 24 shoulders from 24 patients were examined preoperatively and postoperatively at 1, 6, and 12 months.
Limitations
The sample size was small and limited to a single center, which may affect generalizability.
Participant Demographics
{"age_mean":23.4,"sex_distribution":{"male":19,"female":5},"symptom_duration_mean":72.9,"work_activity_level":{"high":17,"low":7}}
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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