Frozen shoulder, or adhesive capsulitis, causes pain and significant stiffness in the shoulder joint. It occurs when the joint capsule, the strong connective tissue surrounding the shoulder, thickens, tightens, and becomes inflamed. This condition severely limits movement, making everyday tasks challenging. This article explores the likelihood of experiencing frozen shoulder more than once in the same shoulder.
Recurrence in the Same Shoulder
Recurrence of frozen shoulder in the same shoulder after full resolution is rare. Medical consensus indicates a very low risk, with some sources suggesting it is essentially 0%. This rarity is attributed to changes in the shoulder capsule during the initial episode; once healed and stretched, it is less likely to become inflamed and contract restrictively again. While isolated case reports of same-shoulder recurrence exist, they are highly unusual and often involve unique circumstances, such as a very long time between episodes.
Factors Influencing Reoccurrence
While true recurrence in the same shoulder is uncommon, certain factors might increase the remote possibility or mimic a new episode. An incomplete recovery from the initial frozen shoulder can lead to persistent stiffness and limited range of motion, which might be mistaken for a recurrence. Underlying systemic health conditions, such as uncontrolled diabetes or thyroid disorders, can predispose individuals to the condition. Additionally, a new, significant trauma or injury to the previously affected shoulder could lead to secondary adhesive capsulitis, distinct from a spontaneous recurrence.
Why the Opposite Shoulder is Often Affected
Developing frozen shoulder in the opposite, or contralateral, shoulder is significantly more common than same-shoulder recurrence. Studies show 15% to 20% of individuals who experienced frozen shoulder in one arm may develop it in the other, often within five years. For people with diabetes, this risk is considerably higher, potentially affecting 20% to 50%. This increased likelihood links to underlying systemic conditions like diabetes or thyroid dysfunction, which can affect both shoulders. Compensatory overuse or altered mechanics of the unaffected arm during recovery of the first shoulder might also contribute.
Proactive Shoulder Health and Prevention
Maintaining overall shoulder health is important, especially for those who have experienced frozen shoulder. Consistent physical therapy and a regular exercise routine, focusing on range-of-motion exercises, can help preserve shoulder mobility and strength. Effectively managing underlying health conditions, such as controlling diabetes and addressing thyroid disorders, can reduce the risk of developing frozen shoulder in either arm. Good posture and avoiding repetitive strain on the shoulders are also beneficial preventative measures. Seeking early medical attention for any new shoulder pain or stiffness allows for timely intervention and can help mitigate the progression of potential shoulder issues.