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Medical Disability Advisor  >  Impingement Syndrome  >  Prognosis  see more: ACOEM - Shoulder Disorders

Impingement Syndrome

Related Terms

  • Internal Impingement
  • Rotator Cuff Impingement Syndrome
  • Subacromial Impingement Syndrome
  • Subcoracoid Impingement

Differential Diagnoses

Specialists

  • Occupational Therapist
  • Orthopedic (Orthopaedic) Surgeon
  • Physiatrist
  • Physical Therapist
  • Rheumatologist

Comorbid Conditions

  • Musculoskeletal disorders
  • Rheumatologic disorders
  • Rotator cuff impingement
  • Tear in the contralateral shoulder

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Factors Influencing Duration

Duration depends on job requirements and whether the dominant or nondominant arm is involved. Duration and disability also depend heavily on whether the contralateral shoulder has similar problems. Disability may be longer for individuals who perform repetitive actions and/or overhead work as part of their work duties. The individual's age, occupation, response to treatment, and compliance with treatment recommendations and rehabilitation programs will influence the duration of disability. Osteoarthritis in the glenohumeral joint is uncommon but, if present, will significantly delay return to heavy work or shoulder-intensive work.

Duration Trends from Reference Data

DURATION TRENDS
 ICD-9-CM: 726.2  
CasesMeanMinMaxNo Lost TimeOver 6 Months
36216602970.2%3.8%
 
  
 
Percentile:5th25thMedian75th95th
Days:12305489172
 
  
 

Differences may exist between the duration tables and the reference graphs. Duration tables provide expected recovery periods based on the type of work performed by the individual. The reference graphs reflect the actual experience of many individuals across the spectrum of physical conditions, in a variety of industries, and with varying levels of case management. Selected graphs combine multiple codes based on similar means and medians.

Medical Codes

ICD-9-CM:
726 - Peripheral Enthesopathies and Allied Syndromes
726.2 - Other Affections of Shoulder Region, Not Elsewhere Classified; Periarthritis of Shoulder; Scapulohumeral Fibrositis
840 - Sprains and Strains of Shoulder and Upper Arm
840.9 - Sprains and Strains of Shoulder and Upper Arm, Unspecified Site of Shoulder and Upper Arm; Arm NOS; Shoulder NOS

Prognosis

The outcome for impingement syndrome is usually excellent. Three to six months of conservative treatment improves symptoms in 60% to 90% of individuals (DeBerardino). Only a very small percentage of individuals require surgical intervention such as subacromial decompression, which results in a return to previous levels of function in 85% to 90% of individuals (DeBerardino). Even in more chronic situations, recovery is expected, but it may be prolonged due to surgical intervention. Since the rotator cuff is intact, once the space for the cuff tendons has been surgically increased, the shoulder should function better.

Source: Medical Disability Advisor






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