Orthopaedic MD

The terms adhesive capsulitis and frozen shoulder syndrome (FSS) have been used to describe an array of clinical conditions, including subacromial bursitis, calcifying tendinitis, and partial rotator cuff tears. Despite the diverse nomenclature used to describe FSS, all of these terms denote different clinical conditions that may cause the painful restriction of active and passive glenohumeral and periscapular shoulder motion.
Lundberg divided patients who met the pain and motion requirements of frozen shoulder into 2 groups: primary and secondary. A patient meets the criteria of primary or secondary FSS if painful, restricted active and passive glenohumeral and scapulothoracic motion occurs for at least 1-month duration and has either reached a plateau or worsened. This inclusion period for defining frozen shoulder is similar to that described by Binder and colleagues but is shorter than that defined by Lloyd-Roberts and coworkers.
Synonyms and related keywords: frozen shoulder, frozen shoulder syndrome, FSS, stiff shoulder
Author: Albert W Pearsall IV, MD

Adhesive capsulitis, most commonly referred to as frozen shoulder (FS), is an idiopathic disease with 2 principal characteristics: pain and contracture.
Synonyms and related keywords: restrictive periarthritis, Duplay disease, Duplay's disease, frozen shoulder, FS, frozen shoulder syndrome, FSS, scapulohumeral periarthritis, complex regional pain syndrome type 1, CRPS1
Roy, Dahan & Fortin 2007