# What Are the Best NPTE Study Tips for Understanding Open vs Closed Packed Positions

Master open and closed packed joint positions with these NPTE study tips to improve your musculoskeletal exam performance.

Source: https://lojakerasstase.shop/what-are-the-best/ · based on the channel [Typical PT](https://www.youtube.com/channel/UCeu0qoaAiH89oarBdx4nR8A) · Video: [NPTE Study Tips | Open vs Closed Packed Positions](https://www.youtube.com/watch?v=-d_qkd1YozY) · 2026-10-08

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## Key takeaways

- Open packed position is also known as loose packed position with maximal joint play.
- Closed packed position features maximum ligament tension and joint stability.
- Recognizing joint positions helps answer NPTE musculoskeletal questions accurately.
- Open and closed packed positions differ in joint congruency and stability.
- NPTE exam prep includes understanding terminology and test-taking strategies for these positions.

Understanding the concepts of open packed and closed packed positions is essential for effective NPTE study and success on musculoskeletal exam questions. Open packed positions, also called loose packed positions, represent joint postures where there is the greatest available joint play. In contrast, closed packed positions are where the joint surfaces are maximally congruent, ligament tension is highest, and stability is at its peak. Recognizing these differences quickly on the NPTE can improve your accuracy in orthopedic and musculoskeletal questions.

## What is an Open Packed Position

An open packed position occurs when a joint is positioned such that the joint surfaces have the most freedom to move relative to each other. This position allows maximal joint play, which means the joint capsule and ligaments are relatively lax. For example, the open packed position of the knee is approximately 25 degrees of flexion. Knowing these positions helps you understand when a joint is most vulnerable or when mobilization techniques are most effective.

## What is a Closed Packed Position

The closed packed position is defined by maximal congruency of the joint surfaces, increased ligament tension, and minimal joint play, resulting in maximal joint stability. For example, the knee’s closed packed position occurs in full extension with external rotation of the tibia. In this position, the joint is less mobile but more stable, which is crucial for weight-bearing activities and joint protection.

Video: [NPTE Study Tips | Open vs Closed Packed Positions](https://www.youtube.com/watch?v=-d_qkd1YozY)

## Why Understanding Open vs Closed Packed Positions Matters for the NPTE

The NPTE often tests your ability to identify joint positions based on clinical scenarios or exam techniques. Questions may describe ligament tension, joint stability, or restrictions in joint movement, requiring you to know whether the joint is in an open or closed packed position. For instance, if a question involves assessing joint play or applying mobilization techniques, recognizing that the joint is in an open packed position guides your answer toward laxity or increased mobility.

## Key Differences Between Open and Closed Packed Positions

1. **Joint Congruency:** Closed packed positions have maximum congruency, while open packed positions have minimal congruency.
2. **Ligament Tension:** Ligaments are taut in closed packed positions and lax in open packed.
3. **Joint Stability:** Stability peaks in closed packed positions and is reduced in open packed.
4. **Joint Play:** Greatest in open packed positions, minimal in closed packed.

These differences are critical for understanding joint mechanics and answering NPTE musculoskeletal questions accurately.

## NPTE Test-Taking Strategies for Open vs Closed Packed Positions

- Look for keywords such as "maximal ligament tension," "maximum joint congruency," or "greatest joint play" in questions.
- Associate joint positions with common examples (e.g., shoulder abduction and external rotation for closed packed).
- Use clinical reasoning about joint stability and mobility to infer the correct position.
- Practice with NPTE-style musculoskeletal questions to reinforce these concepts.

## Applying These Concepts to Musculoskeletal Exam Questions

Many NPTE questions focus on orthopedic tests, joint mobilizations, or injury mechanisms that depend on joint positioning. For example, joint mobilizations are typically performed in open packed positions to increase joint play and reduce stiffness. Conversely, joint stability assessments often consider the closed packed position. Mastering these concepts enhances your ability to select appropriate interventions and answers for NPTE musculoskeletal questions.

## Summary

Understanding open packed and closed packed joint positions is a fundamental NPTE study tip for musculoskeletal exam success. Open packed positions allow maximal joint play with lax ligaments, while closed packed positions provide maximal joint congruency and stability. Recognizing these differences helps you answer NPTE questions about joint mechanics, stability, and mobilization techniques more accurately. This knowledge, combined with test-taking strategies, will improve your confidence and performance. This article is based on the detailed explanations from the Typical PT channel, a valuable resource for NPTE exam preparation.

## Questions & answers

**What is the difference between open packed and closed packed positions?**

Open packed positions allow maximum joint play with lax ligaments and less congruency, while closed packed positions have maximum joint surface congruency, taut ligaments, and maximal stability.

**Why is it important to know open and closed packed positions for the NPTE?**

Many NPTE musculoskeletal questions involve joint stability, ligament tension, or mobilization techniques, which depend on understanding these joint positions to select correct answers.

**Can you give an example of a joint’s open and closed packed positions?**

The knee’s open packed position is about 25 degrees flexion with lax ligaments allowing joint play, while the closed packed position is full extension with external tibial rotation, providing maximal stability.

**How can I use this knowledge during the NPTE exam?**

Look for clues in questions about ligament tension or joint mobility to determine if a joint is in an open or closed packed position, helping you choose the best answer related to joint mechanics or treatment.
