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Infraspinatus and deltoid length and patient height: implications for lateralization and distalization in reverse total shoulder arthroplasty
- Source :
- J Shoulder Elbow Surg
- Publication Year :
- 2021
- Publisher :
- Elsevier BV, 2021.
-
Abstract
- BACKGROUND: Restoration of muscular strength is predicated on restoration of muscle length. The purpose of this study was to describe infraspinatus and deltoid length preoperative to reverse total shoulder arthroplasty (RTSA) to guide distalization and lateralization to restore preoperative muscle length. METHODS: This was a retrospective radiographic study. On preoperative computed tomographic imaging we measured infraspinatus length. On preoperative x-ray we measured deltoid length. For all measurements, reliability was first established by comparing measurements between two observers and intra-class correlation coefficients (ICCs) were calculated. We then calculated descriptive statistics for these muscular lengths and developed a formula to predict these muscular lengths from patient demographics. RESULTS: We measured infraspinatus length in 97 patients and deltoid length in 108 patients. Inter-rater reliability was excellent, with all ICCs >0.886. Mean±standard deviation infraspinatus length was 15.5±1.3 cm but ranged from 12.6 to 18.9 cm, while deltoid length was 16.2±1.7 cm but ranged from 12.5 to 20.2 cm. Both infraspinatus (r=0.775, p
- Subjects :
- medicine.medical_treatment
Radiography
Deltoid curve
Physical strength
Article
Lateralization of brain function
Computed tomographic
Rotator Cuff
03 medical and health sciences
0302 clinical medicine
Anatomy study
Humans
Medicine
Orthopedics and Sports Medicine
Range of Motion, Articular
Retrospective Studies
Orthodontics
030222 orthopedics
Shoulder Joint
business.industry
Reproducibility of Results
030229 sport sciences
General Medicine
Deltoid Muscle
Arthroplasty
Arthroplasty, Replacement, Shoulder
Surgery
business
Height above average
Subjects
Details
- ISSN :
- 10582746
- Volume :
- 30
- Database :
- OpenAIRE
- Journal :
- Journal of Shoulder and Elbow Surgery
- Accession number :
- edsair.doi.dedup.....c541fc7b3e24cafb3a38c918b2a8cc63