The primary objective of the study is to determine in adult patients with a rotator cuff tear, what size and pattern of rotator cuff tear would result in damage to the suprascapular nerve.
The secondary objectives are
1. To determine if an injured suprascapular nerve can recover if the rotator cuff tear is surgically repaired. 2. To determine if there is a limit of retraction before the suprascapular nerve is irreversibly damaged. 3. To determine factors that are protective against SSN injury. 4. Can the patient data gathered be used to optimise operative procedures.
None
Bony pathology (such as significant shoulder arthritis that would exclude isolated rotator cuff repair)
Grossly abnormal shoulder anatomy
Motor Neurone Disease
Cervical cord disease affecting the SSN nerve roots
Participants will be recruited from the University Hospitals of North Midlands outpatient clinic
Cohort
Prospective
MRI
RadiationMRI of shoulder
Nerve conduction study
Other interventionNerve conduction study
Assess suprascapular nerve funaction
MRI scan to quantify size of rotator cuff tear, compared with Nerve Conduction Studies (NCS) to assess suprascapular nerve function.
Shoulder scores
Compare functional shoulder scores to the degree of nerve injury and muscle degeneration over a 24-month period post-injury. Scores to include active range of movement (ROM) measurements; and the collection of validated shoulder outcome scores (DASH, OSS, \& Constant score).
Nerve recovery
Functional assessment of nerve recovery at 24 months post-injury for surgically repaired rotator cuff tears.
Machine learning
Use of machine learning to investigate data set for optimum parameters or predictors
Nerve conduction studies
Repeat Nerve Conduction Study investigations at 12 months post injury for all surgically managed participants and non-surgical patients to assess suprascapular nerve function
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