Internal Rotation Lag Sign

 Internal Rotation Lag Sign

What is Internal Rotation Lag Sign?

How it’s Performed?

What does a positive Internal Rotation Lag Sign mean?

Sensitivity & Specificity

A study by Hertel et al.1 reported high sensitivity and specificity with this test:

Another study by Caroline A Miller 2 found that the specificities of the drop sign and internal rotation lag sign were 77% and 84%, respectively, and a sensitivity of 73% and 100%, respectively.

Related Anatomy

Subscapularis Muscle

subscapularis tendon
Subscapularis Tendon Anatomy

Reference

  1. Hertel R, Ballmer FT, Lombert SM, et al: Lag signs in the diagnosis of rotator cuff rupture. J Elbow Shoulder Surg Am 5:307–313, 1996. PMID: 8872929.
  2. Caroline A Miller, Gail A Forrester, Jeremy S Lewis: The validity of the lag signs in diagnosing full-thickness tears of the rotator cuff: a preliminary investigation. Arch Phys Med Rehabil. 2008 Jun. PMID: 18503815.
  3. Clinical Tests for the Musculoskeletal System 3rd Edition.
  4. Dutton’s Orthopaedic Examination, Evaluation, And Intervention 3rd Edition.

Share with Friends:

Read Also:


Related Tests

Internal Rotation Resistance Stress Test

Internal Rotation Resistance Stress Test is a supplement to a positive impingement test to differentiate an outlet impingement…

Drop Arm Test

Drop Arm Test (or Drop Sign) is used to check for the integrity of the supraspinatus muscle of…

Posterior Stress Test

Posterior Stress Test (or Posterior Apprehension sign) of the shoulder is used to test for Posterior Instability.

See Also:

Latest from Orthofixar

Distal Radius Fractures

Distal Radius Fractures is the most common fracture encountered by orthopedic trauma surgeons accounting for 17.5% of all…

Kohler’s Disease

Kohler's Disease (or Osteochondrosis of the tarsal navicular) is an avascular necrosis of the navicular bone of the…

Dupuytren Contracture

Dupuytren contracture is a painless, but progressive flexion contracture of the fingers caused by a benign fibroproliferative disorder.

Mortons Neuroma Symptoms and Treatment

Mortons Neuroma is a compressive neuropathy of the interdigital nerve, usually between the third and fourth metatarsals.

Special Tests App

Special Test Application
Special Test Application