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Rotator Cuff Strain Assessment
We outline the assessment procedure and type of tests a professional may use for diagnosing rotator cuff injuries.
The following examples regarding Rotator Cuff injuries are for information purposes only. We highly recommend seeing a sports injury professional or Doctor to receive a full assessment of your injury.
Pain in the shoulder can be coming from a number of structures. To help determine the cause of pain, a therapist will perform an assessment. This usually consists of a subjective assessment where the patient is asked questions concerning the injury and their medical history, and an objective assessment where the therapist examines the injury.
Shoulder assessment tests
The therapist will examine the shoulder, looking for swelling, bruising, muscle wasting, postural issues etc. It is important that the injured side is compared to the unaffected side at all times.
The therapist will feel all around the shoulder, asking if there are any painful points and also feeling for muscular tightness and changes in skin temperature.
Range of motion
The therapist will test the range of motion at the shoulder, both actively (the patient moves themselves) and passively (the therapist moves the arm and the patient relaxes). This should always be compared to the uninjured side for what is normal for each individual
Resisted muscle tests
The therapist will ask you to move your shoulder against resistance (usually provided by them pushing against you). Weakness compared to the uninjured side or pain during shoulder rotation or abduction indicates a rotator cuff injury.
There are a range of tests which can be performed which are used to indicate certain injuries:
Empty Can Test
You will be asked to put your arm out in front of you at a 45 degree angle to your body, with the thumb pointing to the floor (as if holding an empty can). The therapist will ask you to raise your arm whilst they resist your movement. This tests the Supraspinatus tendon.
Drop Arm Test (Codman’s Test)
Your arm will be moved above your head, and you’re asked to gently lower your arm to your side. If you can’t do this slowly and under control, or have severe pain in doing so, it suggests a tear in the rotator cuff, specifically Supraspinatus.
You will be asked to sit and raise your arm to your side with the elbow bent. You will be asked to rotate your arm forwards and backwards. If there is any crunching noise (crepitus) there may be some inflammation or degenerative changes.
The therapist will position your arm with the thumb facing down and at a 45 degree angle to your body. They will then lift your arm up, above your head. If you experience pain or discomfort, you may have an impingement of supraspinatus.
Your arm will be raised in front of you to 90° and the elbow bent. The therapist will then medially rotate (turn the wrist down and elbow up) the arm. If this causes pain you probably have an impingement of Supraspinatus.