What are the limitations of the wosi shoulder instability index?

While the wosi shoulder instability index is highly validated, it should not replace clinical judgment. OpiCalc provides the latest evidence-based limitations for the wosi shoulder instability index to ensure safe bedside use and optimal diagnostic accuracy.

How does the wosi shoulder instability index compare to other SportsMedicine scores?

The wosi shoulder instability index is a gold-standard diagnostic tool. OpiCalc provides side-by-side clinical guidance to help clinicians choose the most specific evidence-based tool for their patient's presentation.

Is the wosi shoulder instability index free to use?

Yes. OpiCalc provides the wosi shoulder instability index completely ad-free and optimized for mobile bedside use, ensuring you can calculate medical risk swiftly and without distraction.

EVIDENCE SYNTHESIS

Clinical Reference Hub

Curated insights • How it Works • Practical Pearls • Evidence Base

CLINICAL INSIGHT

When to Use

Evaluating Quality of Life (QoL) in athletes with glenohumeral instability (labral tears, dislocations).
Surgical outcome tracking post-Bankart repair or Latarjet procedure.
Assessing chronic subluxation impact on overhead performance.

Clinical Objective

WOSI is a disease-specific instrument that captures the unique emotional and lifestyle impacts of shoulder instability that generic UE scores often miss.

CLINICAL INSIGHT

How it Works

Domains (21 Items)

Physical Symptoms (10 items)
Sports, Recreation & Work (4 items)
Lifestyle (4 items)
Emotions (3 items)

Scoring Formula

CLINICAL INSIGHT

Practical Pearls

Interpretation

Score 100%

Score 0%

Clinical Pearls

The "Emotions" domain is critical for catching fear-avoidance/kinesiophobia in contact athletes.
MCID: Typically 10–15 points (on 0-100% scale).
Superior to ASES and DASH for patients with primary instability symptoms.

CLINICAL INSIGHT

Next Steps

Management Decisions

Low Physical Symptoms / High Lifestyle disability: Patient may be compensating by avoiding activity. Implement controlled loading and confidence drills.
High Score (90%+): Ready for "return-to-contact" drills if objective strength (LSI) is also >90%.
Persistent high symptoms despite rehab: Consider surgical stabilization consultation.

Related Tools

CLINICAL INSIGHT

Evidence Base

Original Study

The development and evaluation of a disease-specific quality-of-life questionnaire for shoulder instability: The Western Ontario Shoulder Instability Index (WOSI).

Kirkley A, et al.Am J Sports Med1998

View Source

Clinical Evidence and Methodology

Clinical Reference Hub

When to Use

When to Use

Clinical Objective

How it Works

Domains (21 Items)

Scoring Formula

Practical Pearls

Interpretation

Clinical Pearls

Next Steps

Management Decisions

Related Tools

Evidence Base

Original Study

WOSI (Shoulder Instability Index)

-- %

Physical Symptoms Item 1

Physical Symptoms Item 2

Physical Symptoms Item 3

Physical Symptoms Item 4

Physical Symptoms Item 5

Physical Symptoms Item 6

Physical Symptoms Item 7

Physical Symptoms Item 8

Physical Symptoms Item 9

Physical Symptoms Item 10

Clinical Evidence and Methodology

Clinical Reference Hub

When to Use

When to Use

Clinical Objective

How it Works

Domains (21 Items)

Scoring Formula

Practical Pearls

Interpretation

Clinical Pearls

Next Steps

Management Decisions

Related Tools

Evidence Base

Original Study

WOSI (Shoulder Instability Index)

-- %

Physical Symptoms Item 1

Physical Symptoms Item 2

Physical Symptoms Item 3

Physical Symptoms Item 4

Physical Symptoms Item 5

Physical Symptoms Item 6

Physical Symptoms Item 7

Physical Symptoms Item 8

Physical Symptoms Item 9

Physical Symptoms Item 10