Chair Push-up Test

 Chair Push-up Test

What is The Chair Push-up Test?

The Chair Push-up Test (or as it called stand-up test or chair sign) is used to assess for radial collateral ligament insufficiency of the elbow.

See Also: Posterior Drawer Test of the Elbow

How it’s Performed?

Chair Push-up Test
Chair Push-up Test

What does a positive Chair Push-up Test mean?

Sensitivity & Specificity

Regan and Lapner1 reviewed the prone push-up and chair push-up test and demonstrated 87.5% sensitivity in individual test use and 100% sensitivity when both tests are used together

Related Anatomy

Lateral collateral ligament (LCL) complex:

Lateral collateral ligament (LCL) complex is composed of:

  1. Radial collateral ligament (RCL).
  2. Lateral ulnar collateral ligament (LUCL).
  3. Accessory collateral ligament, and annular ligament.

LUCL originates on posterior lateral epicondyle and inserts on crista supinatoris of proximal ulna, it is the primary restraint to varus and externalrotational stress throughout elbow motion

Lateral collateral ligament (LCL) complex
Lateral collateral ligament (LCL) complex

Posterolateral rotatory instability:

Posterolateral rotatory instability
Posterolateral rotatory instability

Reference

  1. Regan W, Lapner PC: Prospective evaluation of two diagnostic apprehension signs for posterolateral instability of the elbow. J Shoulder Elbow Surg. 2006 May-Jun; 15(3):344-6. PMID: 16679236.
  2. Lauren E. Karbach, MD* and John Elfar, MD: Elbow Instability: Anatomy, Biomechanics, Diagnostic Maneuvers, and Testing. J Hand Surg Am. Author manuscript; available in PMC 2018 Feb 21. PMID: 28160902.
  3. Clinical Tests for the Musculoskeletal System, Third Edition book.
  4. Mark Dutton, Pt . Dutton’s Orthopaedic Examination, Evaluation, And Intervention, 3rd Edition Book.
  5. Millers Review of Orthopaedics, 7th Edition Book.
  6. Campbel’s Operative Orthopaedics 13th edition book.

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