After a first time patellar dislocation, the athlete is commonly immobilized for about __________ week(s).

Question

BlackTom AI · Accepted Answer

Medial patellofemoral ligament (MPFL) rupture is the key lesion in most first-time lateral patellar dislocations, so initial care aims to protect the injured soft tissues while avoiding prolonged immobilization that causes stiffness and atrophy.

1) Relevant knowledge points and concepts
- Anatomy/Mechanism: Lateral patellar dislocation commonly tears the MPFL and may strain surrounding capsule/retinaculum.  
- Soft-tissue healing timeline: inflammatory phase (days 0–7), proliferative phase (up to ~3 weeks) when collagen is laid down, and early remodeling thereafter.  
- Clinical goal: provide short-term protection to permit early scar formation of the MPFL but begin controlled motion/rehab soon to restore range and quadriceps strength.

2) Step‑by‑step reasoning
- Immediately after reduction, the knee is often placed in an immobilizer or brace locked in extension to prevent further lateral translation.  
- Complete immobilization beyond the early proliferative phase increases stiffness and quadriceps atrophy; therefore clinicians typically choose a compromise period that covers initial healing but allows timely rehab.  
- Because the proliferative soft-tissue healing phase occurs over roughly three weeks, immobilizing for about that duration gives the MPFL and capsule time to form early scar tissue while minimizing complications from long-term immobilization.

3) Calculations/intermediate steps
- No numeric calculation needed; the decision is based on physiologic healing phases (0–7 days inflammatory, up to ~21 days proliferative) → choose ~3 weeks.

4) Why the correct answer is correct
- Three weeks aligns with the early soft tissue healing window and standard conservative management recommendations for a first-time patellar dislocation: short-term immobilization (~3 weeks) followed by progressive range-of-motion and strengthening.

5) Why other options are incorrect
- Two weeks: likely too short to provide reliable early scar formation for the MPFL.  
- Four or five weeks: unnecessarily long, increasing risk of knee stiffness, quadriceps weakness, and delayed rehab.

Conclusion: Given the soft-tissue healing timeline and standard conservative protocols, immobilization for about three weeks is appropriate — confirming the correct answer is Three.

After a first time patellar dislocation, the athlete is commonly immobilized for about __________ week(s).Single choice

Similar Questions

Which answer choice explains why furanoses and pyranoses can be reduced by sodium borohydride despite having no carbonyl functional groups.

Which of the following statements describes a glycoside?

Which of the following structures represents chitin?

In solution, glucose exists in

According to Xenophanes, what should be avoided at a symposium?

What is "kottabos"?

Why are there so many naked figures in vase iconography?

Why was it necessary to have a "hydria" as part of the ceramic vessels used at a symposium?

More Practical Tools for Students Powered by AI Study Helper

Homework AI Solver

Stylized AI Paper Writer

Plagiarism Checker Assistant

Citation AI Academic Writing Tool

In-Class Translation Assistant

AI Note Generator

AI Quiz Answers

Past Exam Questions from University Test Bank

Smart Practice Assistant

Adaptive Practice

Making Your Study Simpler