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Frozen Shoulder / Adhesive Capsulitis | Diagnosis & Treatment

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Frozen shoulder

Frozen Shoulder / Adhesive Capsulitis | Diagnosis & Treatment

Image result for adhesive capsulitisFrozen shoulder (FS) is a poorly understood condition that typically involves substantial pain, movement restriction, and considerable morbidity. Although function improves over time, a full and pain-free range of motion may not be restored in everyone. Frozen shoulder is also known as adhesive capsulitis, however, the evidence for capsular adhesions is refuted and arguably this term should be abandoned (Lewis et al. 2015).

FS can be differentiated into primary (idiopathic onset) and secondary onset. While primary FS does not have a known cause, secondary FS can further be distinguished into three different groups:

  • Intrinsic: trauma, long-lasting immobilization, calcific tendinosis, rotator cuff, and biceps tendinopathy precede intrinsic secondary frozen shoulder with shoulder surgery resulting in iatrogenic intrinsic secondary frozen shoulder
  • Extrinsic: When the condition is preceded by  pathology remote from the shoulder such as AC joint arthritis, humeral or clavicular fractures, cervical radiculopathy, ipsilateral breast surgery, chest wall tumor CVAs
  • Systemic secondary FS: diabetes, thyroid abnormalities, heart disease, genetic factors (such as Dupuytren’s), Parkinson’s disease, or epilepsy

Pietrzak et al. (2016) postulate that similar to DM and CVD, the inflammation and capsular fibrosis seen in FS might be precipitated by metabolic syndrome and chronic low-grade inflammation, which leads to an upregulation of pro-inflammatory cytokine production, sympathetic dominance of autonomic balance, and neuro-immune activation.
The disease process appears to be cytokine driven, which progresses from inflammation and hyperplasia of the synovium to capsular fibrosis with infiltration of chronic inflammatory cells and cytokines with a corresponding reduction of joint volume. At the same time, capsular fibrosis leads to the thickening of the long head of the biceps, coracohumeral ligament, and axillary recess.
An MRI study by Lee et al. (2012) confirmed this by showing that the coracohumeral ligament and the capsule in axillary recess were significantly greater in patients with Frozen Shoulder compared to a healthy control group.

Ryan et al. (2016) report that increased vascularity is a common feature described in histology studies, particularly in the anterosuperior structures but absent in the inferior structures with the exception of the axillary fold. This may also be an explanation for a patient’s pain experience as the literature consistently describes hypervascularity and angiogenesis as potential sources of nociception due to their association with neovessels.

 

Epidemiology

Primary FS in the general population is reported to affect 2 to 5.3% of patients during their lifetime.
The prevalence of secondary FS increased in patients with diabetes mellitus and thyroid disease from 4.3% to 38% (Kelley et al. 2013).
In most cases, FS occurs between ages 40 and 65 with a slightly higher prevalence among women compared to men (Tasto et al. 2007).
In Japan and China, FS is therefore called the 50-year-old shoulder due to the mean age of onset of 55.0±8.4 years for women and 54.7±8.7 years for men.
In 17% of all cases, FS is reported to occur on the contralateral side within five years after the first episode, while FS occurs bilaterally in 14% of all cases. Recurrence in the same shoulder are rare (Kelley et al. 2013).
At last, the literature describes that the non-dominant side is affected more often than the dominant side, although hard evidence is lacking (Lewis et al. 2015).

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Clinical Picture & Examination

  • Pain in the shoulder, radiating into the upper arm, widespread and diffuse characteristic
  • Onset: sudden or gradual with a progressive course regarding pain and stiffness
  • Pain descriptions: constant, severe, unrelenting, excruciating pain when moved or jarred, occasional ‘neural-like symptoms
  • Commonly reported problems: everything
  • Commonly reported easing factors: nothing
  • Medical history: DM, cardiovascular disease, smoking, high cholesterol, etc.
  • Equal loss of active and passive range of motion

Examination

Hollmann et al. (2015) did a study on the amount of active muscle guarding in patients suspected to have FS and found that all patients had experienced a huge increase in passive abduction while under anesthesia. This means that the loss of range of motion in FS cannot only be explained by a true capsular contraction alone but that active stiffness or muscle guarding can play a huge role as well. For this reason, it can make sense to perform the Coracoid Pain Test to distinguish between a real and pseudo-Frozen Shoulder (Carbone et al. 2010)

Another orthopedic test to distinguish Frozen Shoulder from other shoulder pathologies is the Shoulder Shrug Sign.

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Treatment

Physiotherapeutic treatment of FS should be tailored according to the degree of reactivity. The following table by the Dutch Shoulder Network aims to guide your treatment including recommended treatment options  (Vermeulen et al. 2017).

A Cochrane review by Page et al. (2014) states that the most effective treatment for pain, function and self-reported treatment success in the early stages of a Frozen Shoulder is steroid injections.
While corticosteroid injections were superior to combined manual therapy and exercise in the short term (at 7 weeks), there was no clinically important difference after 6 months and 1 year.
Although steroid injections are an effective treatment in the short term, they may not provide any benefit in the long term (Xiao et al. 2017)

An alternative to corticosteroid injections is hydro-distension injections that inject a high-volume saline solution of 40-50cc combined with steroids and local anesthetics into the joint capsule.
There is moderate level evidence that arthrographic distension with saline and steroid provides short-term benefits in pain, range of movement, and function in adhesive capsulitis. However, it is uncertain whether this is better than alternative interventions (Buchbinder et al. 2008).

The last option for Frozen Shoulder Treatment is manipulation under anesthesia and arthroscopic capsular release. Unfortunately, there is only low-quality evidence available is low that demonstrates little benefit for a capsular release instead of, or in addition to manipulation under anesthesia in terms of abduction, flexion, and external rotation range of motion (Grant et al. 2013). At the same time complications have been reported for both procedures such as shoulder dislocation, rotator cuff tear, or brachial plexus palsy (Birch et al. 1991).

Do you want to learn more about Frozen Shoulder? Then check out the following research review:

 

References

Birch, R., Jessop, J., & Scott, G. (1991). Brachial plexus palsy after manipulation of the shoulder. The Journal of Bone and Joint Surgery. British volume73(1), 172-172.

Buchbinder, R., Green, S., Youd, J. M., Johnston, R. V., & Cumpston, M. (2008). Arthrographic distension for adhesive capsulitis (frozen shoulder). Cochrane Database of Systematic Reviews, (1).

Carbone, S., Gumina, S., Vestri, A. R., & Postacchini, R. (2010). Coracoid pain test: a new clinical sign of shoulder adhesive capsulitis. International orthopaedics34, 385-388.

Grant, J. A., Schroeder, N., Miller, B. S., & Carpenter, J. E. (2013). Comparison of manipulation and arthroscopic capsular release for adhesive capsulitis: a systematic review. Journal of Shoulder and Elbow Surgery22(8), 1135-1145.

Hollmann, L., Halaki, M., Haber, M., Herbert, R., Dalton, S., & Ginn, K. (2015). Determining the contribution of active stiffness to reduced range of motion in frozen shoulder. Physiotherapy101, e585.

Kelley, M. J., Shaffer, M. A., Kuhn, J. E., Michener, L. A., Seitz, A. L., Uhl, T. L., … & Wilk, K. (2013). Shoulder pain and mobility deficits: adhesive capsulitis: clinical practice guidelines linked to the international classification of functioning, disability, and health from the Orthopaedic Section of the American Physical Therapy Association. Journal of orthopaedic & sports physical therapy43(5), A1-A31.

Lee, S. Y., Park, J., & Song, S. W. (2012). Correlation of MR arthrographic findings and range of shoulder motions in patients with frozen shoulder. American Journal of Roentgenology198(1), 173-179.

Lewis, J. (2015). Frozen shoulder contracture syndrome–Aetiology, diagnosis and management. Manual therapy20(1), 2-9.

Page, M. J., Green, S., Kramer, S., Johnston, R. V., McBain, B., Chau, M., & Buchbinder, R. (2014). Manual therapy and exercise for adhesive capsulitis (frozen shoulder). Cochrane Database of Systematic Reviews, (8).

Pietrzak, M. (2016). Adhesive capsulitis: an age related symptom of metabolic syndrome and chronic low-grade inflammation?. Medical Hypotheses88, 12-17.

Ryan, V., Brown, H., Minns Lowe, C. J., & Lewis, J. S. (2016). The pathophysiology associated with primary (idiopathic) frozen shoulder: A systematic review. BMC musculoskeletal disorders17, 1-21.

Tasto, J. P., & Elias, D. W. (2007). Adhesive capsulitis. Sports medicine and arthroscopy review15(4), 216-221.

Vermeulen E, Schuitemaker R, Hekman K, van der Burg D, Struyf F. Fysiotherapie bij Frozen Shoulder: aanbevelingen vanuit SchouderNetwerken Nederland. FysioPraxis: vakinformatie voor de fysiotherapeut in de praktijk.-Houten, 1992, currens. 2017;26(7):13-7.

Xiao, R. C., Walley, K. C., DeAngelis, J. P., & Ramappa, A. J. (2017). Corticosteroid injections for adhesive capsulitis: a review. Clinical Journal of Sport Medicine27(3), 308-320.

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Dit is de 2de cursus die ik volg via physiotutors en net als de vorige cursus vond ik ook deze zeer leerrijk. Je krijgt dankzij deze cursus nieuwe inzichten in de behandeling van een stijve schouder. Er worden behandeltechnieken (o.a. mobilization with movement) getoond via video’s. Het leuke is ook dat je de cursus op je eigen tempo thuis kan volgen en na het afronden van de cursus kan je er nog steeds naar terug grijpen. Ik kijk ernaar uit om nog andere cursussen van physiotutors te ontdekken en raadt het ook anderen ten zeerste aan!.
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