Shoulder Impingement

Posted on 06/02/2024

Shoulder Impingement

Overview

Shoulder impingement is a common condition that occurs in both athletes and non-athletes and is more common in individuals over the age of 40. It is often accompanied by rotator cuff tendinitis, which is inflammation of the rotator cuff tendons. The prevalence of shoulder impingement varies depending on the population studied, but it is estimated to affect up to 25% of the general population and up to 50% of individuals over the age of 50. It is more common in athletes who participate in overhead sports such as baseball, tennis, and swimming.

The pathophysiology of shoulder impingement involves a combination of factors, including anatomical variations, overuse or repetitive motions, muscular imbalances, and age-related changes. The repeated overhead movements and stresses placed on the shoulder joint can lead to inflammation and irritation of the rotator cuff tendons and bursa, which can eventually lead to impingement. Additionally, structural abnormalities such as a hooked acromion or bone spurs can contribute to impingement.

Anatomy

Shoulder impingement, also known as subacromial impingement, is a condition that occurs when there is compression of the rotator cuff tendons and the bursa between the acromion and the head of the humerus. The rotator cuff is a group of four muscles and tendons that attach the humerus to the scapula, and acromion is a bony prominence that forms the roof of the shoulder joint. Impingement occurs when the space between the acromion and the head of the humerus becomes narrowed, causing the tendons and bursa to be compressed against the acromion.

Symptoms

• Pain in the front or side of the shoulder, especially when reaching overhead or behind the back
• Weakness or loss of strength in the shoulder, especially with overhead movements
• Limited range of motion in the shoulder joint
• Pain and discomfort when sleeping on the affected shoulder
• Swelling or tenderness in the shoulder area
• A clicking or popping sensation when moving the shoulder
• Numbness or tingling in the arm or hand, which may indicate nerve involvement in severe cases

Causes

Common causes of impingement include anatomic variations of the acromion, degeneration of the rotator cuff tendons, overuse and trauma. Factors such as obesity, smoking, and diabetes can also contribute to the development of impingement, resulting in pain and weakness in the shoulder.

Diagnosis

Shoulder impingement is diagnosed through a combination of a physical examination, patient history, and imaging studies. The orthopedic surgeon will assess range of motion, strength, and pain in the affected shoulder, and perform specific tests such as the Neer test or Hawkins-Kennedy test. Imaging studies like X-ray or MRI can reveal degenerative changes in the bones and inflammation or tears in the rotator cuff tendons. A diagnosis of impingement is typically made when the patient has pain and weakness in the shoulder, and the physical examination and imaging studies reveal evidence of impingement. In some cases, a diagnostic injection may be done to confirm the diagnosis and to help to determine the best course of treatment.
Treatment
Shoulder impingement treatment usually begins with conservative measures such as rest, ice, and physical therapy. Medication and corticosteroid injections may also be used to reduce pain and inflammation. In more severe cases, or cases that don’t respond to conservative treatment, surgery such as subacromial decompression may be necessary. This involves removing a small portion of the acromion to create more space for the rotator cuff tendons and bursa. Physical therapy and exercises are essential for recovery after surgery. The treatment of shoulder impingement depends on the underlying cause of the condition and the severity of the symptoms.

Exercises

• Pendulum exercises: This exercise helps to gently move the shoulder and improve range of motion. Stand with your good arm leaning on a table or wall for support, and let the affected arm hang down. Use your body weight to gently move the arm in small circles.
• Isometric rotator cuff exercises: These exercises involve contracting the rotator cuff muscles without moving the arm. An example is the “empty can” exercise, which involves holding a light weight with the arm at a 90-degree angle to the body and squeezing the shoulder blade towards the spine.
• Scapular stabilization exercises: These exercises help to strengthen the muscles that support the shoulder blade, such as the serratus anterior and the trapezius. An example is the “wall slide” exercise, which involves sliding the back against a wall while keeping the arms and elbows in contact with the wall.
• TheraBand exercises: This exercise helps to improve the strength of the rotator cuff muscles, such as the supraspinatus and the infraspinatus. An example is the “external rotation” exercise, which involves holding the TheraBand in one hand and turning the arm outwards against the resistance of the band.
• Strengthening exercises: To improve shoulder strength, it’s recommended to do exercises such as shoulder press, lat pulldown, and rows. These exercises can be performed with free weights or resistance bands.
It’s important to note that exercises should be performed under the guidance of a physical therapist or other healthcare professional, to ensure that they are performed correctly and to avoid further injury.

Prevention

• Maintain good posture: Keeping your shoulders back and down will help to reduce the stress on your rotator cuff tendons and decrease the risk of impingement.
• Strengthen the rotator cuff muscles: Performing exercises that target these muscles can help to improve their strength and stability, which in turn can help to prevent impingement.
Avoid repetitive overhead motions: Repetitive motions like throwing a ball or lifting weights over your head can put stress on the rotator cuff tendons and increase the risk of impingement.
• Take breaks when doing repetitive tasks: If you do a lot of overhead work or other repetitive tasks, take regular breaks to give your shoulders a rest.
• Use proper technique when lifting: Using proper form when lifting can help to reduce the stress on your shoulder and decrease the risk of impingement.
• Maintain a healthy weight: Being overweight can put extra stress on your shoulders and increase the risk of impingement.
• Avoid smoking: Smoking is associated with increased risk of impingement due to the decreased blood flow and oxygenation in the shoulder.
• Control chronic conditions: If you have a chronic condition such as diabetes, it’s important to control it to avoid the risk of impingement.
• Wear the right equipment: If you play sports or engage in other activities that put your shoulders at risk, wear the appropriate protective gear to help prevent injury.
• Listen to your body: if you experience pain or discomfort in your shoulder, it’s important to seek medical attention, rest the shoulder and avoid activities that exacerbate the pain.

If you are suffering from any shoulder pain or discomfort, our physiotherapists and exercise professionals are happy to help. You can contact by dropping us an email at info@livewellhealth.co.uk or phone us on 0330 043 2501

Glenohumeral Joint Instability

Posted on 04/04/2023

[fusion_builder_container hundred_percent=”no” equal_height_columns=”no” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” background_position=”center center” background_repeat=”no-repeat” fade=”no” background_parallax=”none” parallax_speed=”0.3″ video_aspect_ratio=”16:9″ video_loop=”yes” video_mute=”yes” border_style=”solid” padding_top=”%” padding_bottom=”%” padding_left=”3%” padding_right=”3%” background_blend_mode=”overlay” margin_top=”0px” hundred_percent_height=”no” type=”flex” flex_align_items=”center” flex_justify_content=”center”][fusion_builder_row][fusion_builder_column type=”1_1″ type=”1_1″ layout=”1_1″ center_content=”no” target=”_self” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” hover_type=”none” border_style=”solid” border_position=”all” box_shadow=”no” box_shadow_blur=”0″ box_shadow_spread=”0″ background_type=”single” gradient_start_position=”0″ gradient_end_position=”100″ gradient_type=”linear” radial_direction=”center center” linear_angle=”180″ background_position=”left top” background_repeat=”no-repeat” background_blend_mode=”none” animation_direction=”left” animation_speed=”0.3″ filter_type=”regular” filter_hue=”0″ filter_saturation=”100″ filter_brightness=”100″ filter_contrast=”100″ filter_invert=”0″ filter_sepia=”0″ filter_opacity=”100″ filter_blur=”0″ filter_hue_hover=”0″ filter_saturation_hover=”100″ filter_brightness_hover=”100″ filter_contrast_hover=”100″ filter_invert_hover=”0″ filter_sepia_hover=”0″ filter_opacity_hover=”100″ filter_blur_hover=”0″ first=”true” last=”true” margin_bottom=”0px” min_height=”” link=”” border_sizes_top=”0px” border_sizes_bottom=”0px” border_sizes_left=”0px” border_sizes_right=”0px”][fusion_title title_type=”text” rotation_effect=”bounceIn” display_time=”1200″ highlight_effect=”circle” loop_animation=”off” highlight_width=”9″ highlight_top_margin=”0″ before_text=”” rotation_text=”” highlight_text=”” after_text=”” content_align_medium=”” content_align_small=”” content_align=”center” size=”1″ font_size=”40px” animated_font_size=”” line_height=”” letter_spacing=”” text_shadow=”no” text_shadow_blur=”0″ text_shadow_color=”” dimensions_medium=”” dimensions_small=”” text_color=”” animated_text_color=”” highlight_color=”” style_type=”default” sep_color=”” animation_type=”” animation_direction=”left” animation_speed=”0.3″ animation_offset=”” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” sticky_display=”normal,sticky” class=”” id=”” fusion_font_variant_title_font=””]Glenohumeral Joint Instability[/fusion_title][fusion_text columns=”” column_min_width=”” column_spacing=”” rule_style=”default” rule_size=”” rule_color=”” animation_type=”” animation_direction=”left” animation_speed=”0.3″ animation_offset=”” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” class=”” id=””]

Overview

The glenohumeral joint (GH) is a ball and socket joint that includes a complex, dynamic, articulation between the proximal humerus (“ball”) and the glenoid (“socket”) of the scapula. The static and dynamic stabilizing structures allow for extreme range of motion in multiple planes, that predisposes the joint to instability events. Shoulder instability often occurs when the capsule (lining of the shoulder joint), ligaments, or labrum becomes stretched, torn, or detached from the glenoid, commonly after shoulder trauma or repetitive motion. A genetic condition can also cause looseness and weakness in the joint. Exercise programs that aim to strengthen the rotator cuff and scapular muscles are often the primary treatment for instability, where full range of motion usually returns after 6-8 weeks.[/fusion_text][/fusion_builder_column][fusion_builder_column type=”1_2″ type=”1_2″ layout=”1_2″ spacing=”” center_content=”no” link=”” target=”_self” min_height=”” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” class=”” id=”” hover_type=”none” border_color=”” border_style=”solid” border_position=”all” box_shadow=”no” box_shadow_blur=”0″ box_shadow_spread=”0″ box_shadow_color=”” box_shadow_style=”” background_type=”single” gradient_start_position=”0″ gradient_end_position=”100″ gradient_type=”linear” radial_direction=”center center” linear_angle=”180″ background_color=”” background_image=”” background_image_id=”” background_position=”left top” background_repeat=”no-repeat” background_blend_mode=”none” animation_type=”” animation_direction=”left” animation_speed=”0.3″ animation_offset=”” filter_type=”regular” filter_hue=”0″ filter_saturation=”100″ filter_brightness=”100″ filter_contrast=”100″ filter_invert=”0″ filter_sepia=”0″ filter_opacity=”100″ filter_blur=”0″ filter_hue_hover=”0″ filter_saturation_hover=”100″ filter_brightness_hover=”100″ filter_contrast_hover=”100″ filter_invert_hover=”0″ filter_sepia_hover=”0″ filter_opacity_hover=”100″ filter_blur_hover=”0″ first=”true” last=”false” padding_left=”” border_sizes_top=”0px” border_sizes_bottom=”0px” border_sizes_left=”0px” border_sizes_right=”0px” spacing_right=””][fusion_text columns=”” column_min_width=”” column_spacing=”” rule_style=”default” rule_size=”” rule_color=”” animation_type=”” animation_direction=”left” animation_speed=”0.3″ animation_offset=”” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” class=”” id=””]

Anatomy

Structurally a ball and socket joint, that involves the humeral head with the glenoid cavity of the scapula, and it represents the major articulation of the shoulder girdle. The joint capsule and ligaments provide a passive restraint to keep the humeral head compressed against the glenoid. As one of the most mobile joints, the GH joint has stabilising elements, that are divided into static (capsule-labro-ligamentous complex) and active (rotator cuffs and bicep tendons). [/fusion_text][/fusion_builder_column][fusion_builder_column type=”1_2″ type=”1_2″ layout=”1_2″ spacing=”” center_content=”yes” link=”” target=”_self” min_height=”” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” class=”” id=”” hover_type=”none” border_color=”” border_style=”solid” border_position=”all” box_shadow=”no” box_shadow_blur=”0″ box_shadow_spread=”0″ box_shadow_color=”” box_shadow_style=”” background_type=”single” gradient_start_position=”0″ gradient_end_position=”100″ gradient_type=”linear” radial_direction=”center center” linear_angle=”180″ background_color=”” background_image=”” background_image_id=”” background_position=”left top” background_repeat=”no-repeat” background_blend_mode=”none” animation_type=”” animation_direction=”left” animation_speed=”0.3″ animation_offset=”” filter_type=”regular” filter_hue=”0″ filter_saturation=”100″ filter_brightness=”100″ filter_contrast=”100″ filter_invert=”0″ filter_sepia=”0″ filter_opacity=”100″ filter_blur=”0″ filter_hue_hover=”0″ filter_saturation_hover=”100″ filter_brightness_hover=”100″ filter_contrast_hover=”100″ filter_invert_hover=”0″ filter_sepia_hover=”0″ filter_opacity_hover=”100″ filter_blur_hover=”0″ first=”false” last=”true” padding_bottom=”0px” margin_bottom=”0px” padding_left=”0px” element_content=”” align_content=”center” border_sizes_top=”0px” border_sizes_bottom=”0px” border_sizes_left=”0px” border_sizes_right=”0px”][fusion_imageframe image_id=”8169|full” max_width=”400PX” style_type=”” blur=”” stylecolor=”” hover_type=”none” bordersize=”” bordercolor=”” borderradius=”” align=”center” lightbox=”no” gallery_id=”” lightbox_image=”” lightbox_image_id=”” alt=”Glenohumeral Joint Instability” link=”” linktarget=”_self” animation_type=”” animation_direction=”left” animation_speed=”0.3″ animation_offset=”” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” class=”” id=”” filter_hue=”0″ filter_saturation=”100″ filter_brightness=”100″ filter_contrast=”100″ filter_invert=”0″ filter_sepia=”0″ filter_opacity=”100″ filter_blur=”0″ filter_hue_hover=”0″ filter_saturation_hover=”100″ filter_brightness_hover=”100″ filter_contrast_hover=”100″ filter_invert_hover=”0″ filter_sepia_hover=”0″ filter_opacity_hover=”100″ filter_blur_hover=”0″]https://store.livewellhealth.co.uk/wp-content/uploads/2023/04/Glenohumeral-Joint-Instability.jpg[/fusion_imageframe][/fusion_builder_column][fusion_builder_column type=”1_1″ type=”1_1″ layout=”1_1″ spacing=”” center_content=”no” link=”” target=”_self” min_height=”” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” class=”” id=”” hover_type=”none” border_color=”” border_style=”solid” border_position=”all” box_shadow=”no” box_shadow_blur=”0″ box_shadow_spread=”0″ box_shadow_color=”” box_shadow_style=”” background_type=”single” gradient_start_position=”0″ gradient_end_position=”100″ gradient_type=”linear” radial_direction=”center center” linear_angle=”180″ background_color=”” background_image=”” background_image_id=”” background_position=”left top” background_repeat=”no-repeat” background_blend_mode=”none” animation_type=”” animation_direction=”left” animation_speed=”0.3″ animation_offset=”” filter_type=”regular” filter_hue=”0″ filter_saturation=”100″ filter_brightness=”100″ filter_contrast=”100″ filter_invert=”0″ filter_sepia=”0″ filter_opacity=”100″ filter_blur=”0″ filter_hue_hover=”0″ filter_saturation_hover=”100″ filter_brightness_hover=”100″ filter_contrast_hover=”100″ filter_invert_hover=”0″ filter_sepia_hover=”0″ filter_opacity_hover=”100″ filter_blur_hover=”0″ first=”true” last=”true” element_content=”” padding_top=”1%” padding_right=”2″ padding_bottom=”” padding_left=”” border_sizes_top=”0px” border_sizes_bottom=”0px” border_sizes_left=”0px” border_sizes_right=”0px”][fusion_text columns=”” column_min_width=”” column_spacing=”” rule_style=”default” rule_size=”” rule_color=”” animation_type=”” animation_direction=”left” animation_speed=”0.3″ animation_offset=”” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” class=”” id=””]

Symptoms

The symptoms of Glenohumeral Joint Instability include but may not be limited to:

Pain, tenderness, swelling, and/or bruising.
A loose feeling, or hearing a “pop” in the shoulder joint.
Repeated shoulder dislocation.
Tingling or burning sensation in the lower arm and hand.
Localised numbness of the skin overlying the deltoid muscle.
Decreased range of arm/shoulder motion.

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Causes

Glenohumeral joint instability can occur following a traumatic accident such as a fall or collision. It can also occur without significant trauma or injury, which is often genetic from those with hypermobility or connective tissue problems, or from a development of laxity in tissues of the shoulder joint. Other causes can be from repetitive motions, particularly from throwing sports, causing the shoulder to stretch over time, where normal muscle control is lost.[/fusion_text][/fusion_builder_column][fusion_builder_column type=”1_1″ type=”1_1″ layout=”1_1″ spacing=”” center_content=”no” link=”” target=”_self” min_height=”” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” class=”” id=”” hover_type=”none” border_color=”” border_style=”solid” border_position=”all” box_shadow=”no” box_shadow_blur=”0″ box_shadow_spread=”0″ box_shadow_color=”” box_shadow_style=”” background_type=”single” gradient_start_position=”0″ gradient_end_position=”100″ gradient_type=”linear” radial_direction=”center center” linear_angle=”180″ background_color=”” background_image=”” background_image_id=”” background_position=”left top” background_repeat=”no-repeat” background_blend_mode=”none” animation_type=”” animation_direction=”left” animation_speed=”0.3″ animation_offset=”” filter_type=”regular” filter_hue=”0″ filter_saturation=”100″ filter_brightness=”100″ filter_contrast=”100″ filter_invert=”0″ filter_sepia=”0″ filter_opacity=”100″ filter_blur=”0″ filter_hue_hover=”0″ filter_saturation_hover=”100″ filter_brightness_hover=”100″ filter_contrast_hover=”100″ filter_invert_hover=”0″ filter_sepia_hover=”0″ filter_opacity_hover=”100″ filter_blur_hover=”0″ first=”true” last=”true” border_sizes_top=”0px” border_sizes_bottom=”0px” border_sizes_left=”0px” border_sizes_right=”0px”][fusion_text columns=”” column_min_width=”” column_spacing=”” rule_style=”default” rule_size=”” rule_color=”” animation_type=”” animation_direction=”left” animation_speed=”0.3″ animation_offset=”” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” class=”” id=””]

Diagnosis

A physical examination can confirm the impression obtained from the history and help to determine if the shoulder is loose or unstable. Radiographs or imaging, such as X-rays, MRI, or a CT scan can help to provide confirmation of traumatic glenohumeral instability present from the damaged bones, cartilage, and rotator cuff. Mobility may be restricted for two weeks, followed by physical therapy to strengthen the muscles that stabilises the shoulder.

Classifications

Polar Type I (structural instability) – typically present with a positive apprehension (anterior direction) associated with rotator cuff weakness. Posture, single leg balance, and scapula control are often disturbed. Can begin to exhibit signs of poor scapula control, abnormal muscle activation, and altered trunk stability and balance, when moving towards type II and III poles.

Polar Type II – (atraumatic instability) – present with positive anterior apprehension test, with increased laxity and excessive external rotations, and muscular balance

Polar Type III – (neurological dysfunctional or muscle patterning) – shows abnormal activation of large muscles and suppression of the rotator cuff. Mostly occurs with a history of easy shoulder dislocation.

Treatment

Treatment usually begins with physical therapy, designed to strengthen the shoulder, and maintain the joint in position.

Restricting activity that includes overhead motion may be advised to reduce symptoms. Full range of motion usually returns after 6-8 weeks.

If less invasive treatments don’t work, and in severe instances, open surgery is often necessary, where an incision is made over the shoulder and the muscles are moved to access the joint capsule, ligaments, and labrum. After surgery, full recovery often takes 4-6 months, and in some cases up to 12 months. At this stage some deep tissue massage and scar tissue work may be necesary!

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Exercises

Shoulder flexion (lying down)
Shoulder blade squeeze
Resisted rows
Internal rotator strengthening exercise
External rotator strengthening exercise (with arm abducted 90°)
Standing row (with resistance band)

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Prevention

Glenohumeral Joint Instability (GJI) is a condition that occurs when the ball and socket joint of the shoulder become dislocated or partially dislocated due to trauma or other underlying conditions. GJI can result in pain, weakness, and limited range of motion, making it difficult for people to perform their daily activities. In severe cases, surgery may be required to treat the condition. However, prevention is always better than cure, and there are several steps that individuals can take to prevent GJI.

Strengthen the Rotator Cuff Muscles:
The rotator cuff muscles are a group of muscles that attach the shoulder blade to the humerus bone and help stabilize the shoulder joint. Strengthening these muscles can help prevent GJI. Exercises that target the rotator cuff muscles include external and internal rotation exercises, scapular stabilization exercises, and shoulder blade squeezes.

Improve Shoulder Mobility:
Limited shoulder mobility can lead to increased stress on the shoulder joint, which can increase the risk of GJI. Stretching exercises that target the shoulder joint, such as shoulder circles and shoulder flexion stretches, can help improve shoulder mobility and prevent GJI.

Maintain Good Posture:
Poor posture can contribute to shoulder instability and increase the risk of GJI. Individuals should aim to maintain good posture by keeping their shoulders back and down and their chest open. Practicing good posture can help improve shoulder alignment and stability.

Avoid Overuse Injuries:
Overuse injuries can cause wear and tear on the shoulder joint, leading to increased instability and a higher risk of GJI. To avoid overuse injuries, individuals should practice proper form and technique when performing exercises and avoid repetitive overhead movements.

Wear Proper Protective Gear:
Individuals who participate in contact sports or activities that involve the risk of shoulder injuries should wear proper protective gear, such as shoulder pads or braces. Protective gear can help absorb the impact of a fall or collision, reducing the risk of GJI.

In conclusion, preventing GJI requires a combination of strengthening exercises, stretching, good posture, injury prevention strategies, and protective gear. By following these steps, individuals can help reduce the risk of GJI and maintain a healthy and stable shoulder joint. It is important to consult with a healthcare professional before starting any new exercise program or if experiencing any shoulder pain or discomfort. If you are unsure what to do, please contact us and one of our Personal Trainers or Sports Therapists can help.

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Tag: Shoulder Instability