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Impingement syndrome can usually be diagnosed by history and physical exam. On physical exam, the physician may twist or elevate the patient's arm to test for reproducible pain (Neer sign and Hawkins-Kennedy test). These tests help localize the pathology to the rotator cuff; however, they are not specific for impingement. Neer sign may also be seen with subacromial bursitis.
The physician may inject lidocaine (usually combined with a steroid) into the bursa, and if there is an improved range of motion and decrease in pain, this is considered a positive "Impingement Test". It not only supports the diagnosis for impingement syndrome, but it is also therapeutic.
Plain x-rays of the shoulder can be used to detect some joint pathology and variations in the bones, including acromioclavicular arthritis, variations in the acromion, and calcification. However, x-rays do not allow visualization of soft tissue and thus hold a low diagnostic value. Ultrasonography, arthrography and MRI can be used to detect rotator cuff muscle pathology. MRI is the best imaging test prior to arthroscopic surgery. Due to lack of understanding of the pathoaetiology, and lack of diagnostic accuracy in the assessment process by many physicians, several opinions are recommended before intervention.
In addition to history and exam, it has been recommended to perform projectional radiography of the neck, chest, shoulder, and thoracic inlet to rule out structural abnormalities such as malunited or greenstick fractures. Computed tomography (CT) or magnetic resonance imaging (MRI) are rarely indicated, but may be useful to rule out certain diagnoses if suspected, such as neurofibromatosis-related injury, intervertebral disc disorder, radiculopathy, and tumors.
The diagnosis is usually initially made by a combination of physical exam and MRI of the shoulder, which can be done with or without the injection of intraarticular contrast. The presence of contrast allows for better evaluation of the glenoid labrum.
Arthroscopic repair of Bankart injuries have high success rates, with studies showing that nearly one-third of patients require re-intervention for continued shoulder instability following repair. Options for repair include an arthroscopic technique or a more invasive open Latarjet procedure, with the open technique tending to have a lower incidence of recurrent dislocation, but also a reduced range of motion following surgery.
Diagnosis of tendinitis and bursitis begins with a medical history and physical examination. X rays do not show tendons or the bursae but may be helpful in ruling out bony abnormalities or arthritis. The doctor may remove and test fluid from the inflamed area to rule out infection.
Ultrasound scans are frequently used to confirm a suspected tendinitis or bursitis as well as rule out a tear in the rotator cuff muscles.
Impingement syndrome may be confirmed when injection of a small amount of anesthetic (lidocaine hydrochloride) into the space under the acromion relieves pain.
Since there is a variety of classifications of winged scapula, there is also more than one type of treatment. Massage Therapy is an effective initial approach to relax the damaged muscles. In more severe cases, Physical Therapy can help by strengthening affected and surrounding muscles. Physical therapy constitutes treatment options if there is weakness of the glenohumeral joint muscles, but if the muscles do not contract clinically and symptoms continue to be severe for more than 3–6 months, surgery may be the next choice. Surgery by fixation of the scapula to the rib cage can be done for those with isolated scapular winging. Some options are neurolysis (chordotomy), intercostal nerve transfer, scapulothoracic fusion, arthrodesis (scapulodesis), or scapulothoracis fixation without arthrodesis (scapulopexy).
Pain is perceived on shoulder motion, especially on certain movements. Often a crossover arm test is utilized in diagnosis because this compresses the AC joint, exacerbating the symptoms. X-rays of the shoulder joint may show either arthritic changes of the ac joint or osteolysis.
The diagnosis may be confirmed by an EMG examination in 5 to 7 days. The evidence of denervation will be evident. If there is no nerve conduction 72 hours after the injury, then avulsion is most likely..
The most advanced diagnostic method is MR imaging of the brachial plexus using a high Tesla MRI scanner like 1.5 T or more. MR helps aid in the assessment of the injuries in specific context of site, extent and the nerve roots involved. In addition, assessment of the cervical cord and post traumatic changes in soft tissues may also be visualised.
Impingement syndrome is usually treated conservatively, but sometimes it is treated with arthroscopic surgery or open surgery. Conservative treatment includes rest, cessation of painful activity, and physical therapy. Physical therapy treatments would typically focus at maintaining range of movement, improving posture, strengthening shoulder muscles, and reduction of pain. Physical therapists may employ the following treatment techniques to improve pain and function: joint mobilization, interferential therapy, accupuncture, soft tissue therapy, therapeutic taping, rotator cuff strengthening, and education regarding the cause and mechanism of the condition. NSAIDs and ice packs may be used for pain relief.
Therapeutic injections of corticosteroid and local anaesthetic may be used for persistent impingement syndrome. The total number of injections is generally limited to three due to possible side effects from the corticosteroid. A recent systematic review of level one evidence, showed corticoestroid injections only give small and transient pain relief.
A number of surgical interventions are available, depending on the nature and location of the pathology. Surgery may be done arthroscopically or as open surgery. The impinging structures may be removed in surgery, and the subacromial space may be widened by resection of the distal clavicle and excision of osteophytes on the under-surface of the acromioclavicular joint. Damaged rotator cuff muscles can be surgically repaired.
Surgery is usually only used if the non-surgical treatments have failed. Bone abnormalities may need surgical attention. The most common surgery for snapping scapula requires the surgeon to “take out a small piece of the upper corner of the scapula nearest to the spine.”
Doctors often recommend physical therapy in order to strengthen the subscapularis muscle, and prescribe anti-inflammatory medications. For extreme cases, cortisone injections would be utilized.
The basic method to check for a clavicle fracture is by an X-ray of the clavicle to determine the fracture type and extent of injury. In former times, X-rays were taken of both clavicle bones for comparison purposes. Due to the curved shape in a tilted plane X-rays are typically oriented with ~15° upwards facing tilt from the front. In more severe cases, a computerized tomography (CT) or magnetic resonance imaging (MRI) scan is taken.
However, the standard method of diagnosis through ultrasound imaging performed in the emergency room may be equally accurate in children.
Most fractures of the scapula can be seen on a chest X-ray; however, they may be missed during examination of the film. Serious associated injuries may distract from the scapular injury, and diagnosis is often delayed. Computed tomography may also be used. Scapular fractures can be detected in the standard chest and shoulder radiographs that are given to patients who have suffered significant physical trauma, but much of the scapula is hidden by the ribs on standard chest X-rays. Therefore, if scapular injury is suspected, more specific images of the scapular area can be taken.
Following inspection and determination of the extent of injury, the basic labrum repair is as follows.
- The glenoid and labrum are roughened to increase contact surface area and promote re-growth.
- Locations for the bone anchors are selected based on number and severity of tear. A severe tear involving both SLAP and Bankart lesions may require seven anchors. Simple tears may only require one.
- The glenoid is drilled for the anchor implantation.
- Anchors are inserted in the glenoid.
- The suture component of the implant is tied through the labrum and knotted such that the labrum is in tight contact with the glenoid surface.
There is evidence in literature to support both surgical and non-surgical forms of treatment. In some, physical therapy can strengthen the supporting muscles in the shoulder joint to the point of reestablishing stability.
Surgical treatment of SLAP tears has become more common in recent years. The success rate for repairing isolated SLAP tears is reported between 74-94%. While surgery can be performed as a traditional open procedure, an arthroscopic technique is currently favored being less intrusive with low chance of iatrogenic infection.
Associated findings within the shoulder joint are varied, may not be predictable and include:
- SLAP lesion – labrum/glenoid separation at the tendon of the biceps muscle
- Bankart lesion – labrum/glenoid separation at the inferior glenohumeral ligament
- Biceps Tendon - exclusion of pulley injury
- Bone – glenoid, humerus — injury or degenerative change involving joint surface
- Anatomical variants — sublabral foramen, Buford Complex
Although good outcomes with SLAP repair over the age of 40 are reported, both age greater than 40 and Workmen's Compensation status have been noted as independent predictors of surgical complications. This is particularly so if there is an associated rotator cuff injury. In such circumstances, it is suggested that labral debridement and biceps tenotomy is preferred.
SLAP (Superior Labral Tear, Anterior to Posterior)
- "Type 1"
- Fraying of Superior Labrum
- Biceps Anchor Intact
- "Type 2"
- Superior Labrum detached
- Detachment of the Biceps Anchor
- "Type 3"
- Bucket Handle type tear of Superior Labrum
- Biceps Anchor INTACT
- "Type 4"
- Bucket Handle tear of Superior Labrum
- Extension of tear in Biceps Tendon
- Part of Biceps Anchor still INTACT
Treatment involves pain medication and immobilization at first; later, physical therapy is used. Ice over the affected area may increase comfort. Movement exercises are begun within at least a week of the injury; with these, fractures with little or no displacement heal without problems. Over 90% of scapular fractures are not significantly displaced; therefore, most of these fractures are best managed without surgery. Fractures of the scapular body with displacement may heal with malunion, but even this may not interfere with movement of the affected shoulder. However, displaced fractures in the scapular processes or in the glenoid do interfere with movement in the affected shoulder if they are not realigned properly. Therefore, while most scapular fractures are managed without surgery, surgical reduction is required for fractures in the neck or glenoid; otherwise motion of the shoulder may be impaired.
The severity of brachial plexus injury is determined by the type of nerve damage. There are several different classification systems for grading the severity of nerve and brachial plexus injuries. Most systems attempt to correlate the degree of injury with symptoms, pathology and prognosis. Seddon's classification, devised in 1943, continues to be used, and is based on three main types of nerve fiber injury, and whether there is continuity of the nerve.
1. Neurapraxia: The mildest form of nerve injury. It involves an interruption of the nerve conduction without loss of continuity of the axon. Recovery takes place without wallerian degeneration.
2. Axonotmesis: Involves axonal degeneration, with loss of the relative continuity of the axon and its covering of myelin, but preservation of the connective tissue framework of the nerve (the encapsulating tissue, the epineurium and perineurium, are preserved).
3. Neurotmesis: The most severe form of nerve injury, in which the nerve is completely disrupted by contusion, traction or laceration. Not only the axon, but the encapsulating connective tissue lose their continuity. The most extreme degree of neurotmesis is transsection, although most neurotmetic injuries do not produce gross loss of continuity of the nerve but rather, internal disruption of the nerve architecture sufficient to involve perineurium and endoneurium as well as axons and their covering. It requires surgery, with unpredictable recovery.
A more recent and commonly used system described by the late Sir Sydney Sunderland, divides nerve injuries into five degrees: first degree or neurapraxia, following on from Seddon, in which the insulation around the nerve called myelin is damaged but the nerve itself is spared, and second through fifth degree, which denotes increasing severity of injury. With fifth degree injuries, the nerve is completely divided.
Physical examination often begins with examination of the patient's gait. In OCD of the knee, people may walk with the involved leg externally rotated in an attempt to avoid tibial spine impingement on the lateral aspect of the medial condyle of the femur.
Next, the examining physician may check for weakness of the quadriceps. This examination may reveal fluid in the joint, tenderness, and crepitus. The Wilson test is also useful in locating OCD lesions of the femoral condyle. The test is performed by slowly extending the knee from 90 degrees, maintaining internal rotation. Pain at 30 degrees of flexion and relief with tibial external rotation is indicative of OCD.
Physical examination of a patient with ankle OCD often returns symptoms of joint effusion, crepitus, and diffuse or localized tenderness. Examination often reveals symptoms of generalized joint pain, swelling, and times with limited range of motion. Some with loose body lesions may report catching, locking, or both. The possibility of microtrauma emphasizes a need for evaluation of biomechanical forces at the knee in a physical examination. As a result, the alignment and rotation of all major joints in the affected extremity is common, as are extrinsic and intrinsic abnormalities concerning the affected joint, including laxity.
X-rays show lucency of the ossification front in juveniles. In older people, the lesion typically appears as an area of osteosclerotic bone with a radiolucent line between the osteochondral defect and the epiphysis. The visibility of the lesion depends on its location and on the amount of knee flexion used. Harding described the lateral X-ray as a method to identify the site of an OCD lesion.
Magnetic resonance imaging (MRI) is useful for staging OCD lesions, evaluating the integrity of the joint surface, and distinguishing normal variants of bone formation from OCD by showing bone and cartilage edema in the area of the irregularity. MRI provides information regarding features of the articular cartilage and bone under the cartilage, including edema, fractures, fluid interfaces, articular surface integrity, and fragment displacement. A low T1 and high T2 signal at the fragment interface is seen in active lesions. This indicates an unstable lesion or recent microfractures. While MRI and arthroscopy have a close correlation, X-ray films tend to be less inductive of similar MRI results.
Computed tomography (CT) scans and Technetium-99m bone scans are also sometimes used to monitor the progress of treatment. Unlike plain radiographs (X-rays), CT scans and MRI scans can show the exact location and extent of the lesion. Technetium bone scans can detect regional blood flow and the amount of osseous uptake. Both of these seem to be closely correlated to the potential for healing in the fragment.
Because there are various causes for back injuries, prevention must be comprehensive. Back injuries are predominant in manual labor so the majority low back pain prevention methods have been applied primarily toward biomechanics Prevention must come from multiple sources such as education, proper body mechanics, and physical fitness.
Healing time varies based on age, health, complexity, and location of the break, as well as the bone displacement. For adults, a minimum of 2–6 weeks of sling immobilization is normally employed to allow initial bone and soft tissue healing; teenagers require slightly less, while children can often achieve the same level in two weeks. During this period, patients may remove the sling to practice passive pendulum range of motion exercises to reduce atrophy in the elbow and shoulder, but they are minimized to 15–20° off vertical. Depending on the severity of fracture, a person can begin to use the arm if comfortable with movement and no pain results. The final goal is to be able to have full range of motion with no pain; therefore, if any pain occurs, allowing for more recovery time is best. Depending on severity of the fracture, athletes involved in contact sports may need a longer period of rest to heal to avoid refracturing bone. A person should be able to return unrestricted to any sports or work by 3 months after the injury.
When a child experiences a fracture, he or she will have pain and will not be able to easily move the fractured area. A doctor or emergency care should be contacted immediately. In some cases even though the child will not have pain and will still be able to move, medical help must be sought out immediately. To decrease the pain, bleeding, and movement a physician will put a splint on the fractured area. Treatment for a fracture follows a simple rule: the bones have to be aligned correctly and prevented from moving out of place until the bones are healed. The specific treatment applied depends on how severe the fracture is, if it’s an open or closed fracture, and the specific bone involved in the fracture (a hip fracture is treated differently from a forearm fracture for example)
Different treatments for different fractures:
The general treatments for common fractures are as follows:
If the fracture is small, it is usually sufficient to treat with rest and support bandage, but in more severe cases, surgery may be required. Ice may be used to relieve swelling.
Displaced avulsion fractures are best managed by either open reduction and internal fixation or closed reduction and pinning. Open reduction (using surgical incision) and internal fixation is used when pins, screws, or similar hardware is needed to fix the bone fragment.
The straight leg raise may be positive, as this finding has low specificity; however, it has high sensitivity. Thus the finding of a negative SLR sign is important in helping to "rule out" the possibility of a lower lumbar disc herniation. A variation is to lift the leg while the patient is sitting. However, this reduces the sensitivity of the test.
Children in general are at greater risk because of their high activity levels. Children that have risk-prone behaviors are at even greater risk.