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CPTE Oral Knee Case Scenario Practice

Musculoskeletal knee case involving patellofemoral pain syndrome, occupational overuse, activity modification, exercise progression, psychosocial stressors, and ethical support.

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Case Scenario

Knee Case Details

Review the full written case in a table-style format before attempting the oral questions.

Client Profile
Client Name Mr. Rahul S. Practice Setting Outpatient / occupational MSK physiotherapy context
Age 34 years Primary Concern Gradual-onset anterior knee pain consistent with PFPS.
Gender Male Occupation Warehouse worker requiring frequent lifting, stair climbing, prolonged standing, and walking.
Psychosocial / Contextual Factors
  • Recently immigrated.
  • Sole financial provider for his household.
  • Experiences pressure from management to avoid taking sick leave.
  • Lives in a basement apartment with steep stairs, which he negotiates multiple times daily.
  • Has limited insurance coverage, restricting access to paid physiotherapy services.
  • High motivation to continue working despite pain due to financial responsibility.
CPTE oral cue: Link the patient’s financial pressure, work demands, stair exposure, limited coverage, and high motivation to your education, treatment planning, and ethical reasoning.
History / Mechanism of Injury
Mr. Rahul presents with a 4-month history of gradual-onset anterior knee pain with no specific traumatic event. He denies episodes of locking, catching, or giving way, and reports no acute injury. His symptoms have progressively worsened over time and are associated with repetitive occupational demands.
Presenting Complaint
  • Dull, aching pain localized around the patella.
  • Pain aggravated by climbing stairs.
  • Pain aggravated by prolonged sitting, also known as theatre sign.
  • Pain aggravated by lifting and carrying heavy boxes at work.
  • Symptoms improve with rest.
  • Symptoms recur with activity.
Pain Characteristics
Intensity At rest: 2–3/10
With aggravating activities: 6–7/10		 Type of Pain Diffuse, aching anterior knee pain.
Aggravating Factors Stair ascent/descent, prolonged sitting, repetitive lifting, and squatting. Relieving Factors Rest and activity modification.
Objective Assessment
  • Observation / Gait: Mild foot pronation noted during gait assessment.
  • No visible swelling or deformity.
  • ROM: Full active and passive knee ROM.
  • No pain at end range.
  • Strength: Weakness noted in hip abductors and external rotators.
  • Special tests: Positive patellar compression test reproducing anterior knee pain.
  • No ligamentous laxity on varus/valgus, Lachman, or drawer tests.
  • Joint Assessment: No effusion.
  • No signs of instability.
  • Functional Limitations: Difficulty with stair negotiation at home and work.
  • Increased pain with prolonged sitting and repetitive occupational tasks.
  • Reduced tolerance for full work duties due to knee pain.
Candidate focus: This is not an acute traumatic knee case. Use the absence of locking, catching, giving way, swelling, effusion, and laxity to support your differential reasoning.
Clinical Impression Prompt
What is your clinical impression for this patient?

Summarize the likely diagnosis, key supporting subjective and objective findings, relevant differential considerations, and the functional or psychosocial factors that may influence physiotherapy management.

Reveal Clinical Impression Answer

Mr. Rahul S. is a 34-year-old warehouse worker presenting with a 4-month history of insidious-onset anterior knee pain. This presentation is consistent with a chronic overuse condition rather than an acute traumatic injury.

His pain is dull and aching around the patella and is aggravated by activities that increase patellofemoral joint compressive forces, including stair negotiation, prolonged sitting, squatting, repetitive lifting, and carrying tasks required at work.

The absence of mechanical symptoms such as locking, catching, or giving way, along with the lack of joint effusion or ligamentous laxity on examination, makes intra-articular pathology such as meniscal tear or ligament injury less likely. Reproduction of symptoms with the patellar compression test supports involvement of the patellofemoral joint as the primary pain generator.

Management should also account for psychosocial factors, including financial responsibility, pressure to continue working, limited insurance coverage, and high stair exposure at home.

Section 8

Oral Questions

Question 1 — Exercise Prescription for PFPS

1.A List three exercises that would be appropriate to improve symptoms of Patellofemoral Pain Syndrome.

1.B Describe how these exercises should be progressed safely to support functional recovery.

Question 2 — Workplace and Activity Modification

2.A Identify three workplace or activity modifications that could help reduce knee stress for this patient.

2.B Explain how each modification helps to minimize patellofemoral loading and prevent symptom aggravation.

Question 3 — Ethical Support Issue: Caregiving Responsibilities

Scenario: The patient is the sole financial provider and primary caregiver for a mother with dementia.

3.A Identify three ethical or psychosocial concerns present in this scenario related to caregiving, work demands, and the patient’s injury.

Section 9

Answer Keys

Reveal Answer Key: Question 1

1.A – Three Exercises to Improve PFPS

  1. Hip abductor and external rotator strengthening — examples include side-lying hip abduction, clamshells, and banded monster walks.
  2. Quadriceps strengthening in a pain-free range — examples include quad sets, straight leg raises, short-arc knee extension, and sit-to-stand.
  3. Functional closed-chain control exercises — examples include step-downs, controlled mini-squats, and sit-to-stand drills with alignment cues.
1.B – Safe progression: Begin with low-load, pain-free exercises and prioritize movement quality. Progress by increasing repetitions, resistance, and functional demand gradually. Move from isolated strengthening to closed-chain and work-specific tasks. Monitor symptoms: pain should not exceed 2–3/10 and should resolve within 24 hours. Avoid rapid increases in exercise volume, deep knee flexion, or excessive stair loading early in rehabilitation.
Reveal Answer Key: Question 2

2.A – Three Modifications

  1. Reduce repetitive stair use and deep squatting.
  2. Use task rotation and temporary load modification at work.
  3. Schedule micro-breaks during prolonged standing, walking, or lifting duties.

2.B – Rationale

  1. Stair and squat modification: Reduces high patellofemoral compressive forces during early rehabilitation and prevents repeated symptom provocation.
  2. Task rotation and load reduction: Prevents cumulative overload and gives irritated tissues time to recover while allowing the patient to remain active at work.
  3. Micro-breaks: Reduce fatigue-related poor mechanics, such as dynamic knee valgus, poor squat control, or altered gait, which may increase knee stress.
Reveal Answer Key: Question 3

3.A – Ethical and Red-Flag Concerns

  1. Risk of physical burnout and injury progression: The patient continues high physical load despite injury, which may worsen symptoms and prolong disability.
  2. Caregiver strain and psychosocial stress: Being both the sole caregiver and sole provider increases risk of emotional distress, fatigue, and reduced coping capacity.
  3. Potential unmet duty of care to dependent mother: Pain, fatigue, and reduced function may compromise the patient’s ability to safely care for his mother with dementia.
Section 10

Textbook & Professional References

  • Kisner, C., & Colby, L. A. (2017). Therapeutic Exercise: Foundations and Techniques (7th ed.). F.A. Davis.
    Use for: PFPS rehabilitation, exercise progression, and biomechanics.
  • Dutton, M. (2017). Orthopaedic Examination, Evaluation, and Intervention (4th ed.). McGraw-Hill.
    Use for: PFPS assessment, differential diagnosis, and functional loading.
  • O’Sullivan, S. B., & Schmitz, T. J. (2020). Physical Rehabilitation (7th ed.). F.A. Davis.
    Use for: activity modification, patient education, and chronic MSK care.
  • Canadian Physiotherapy Association (CPA). (2020). Code of Ethics and Professional Conduct.
    Use for: duty of care, advocacy, ethical decision-making, and patient safety.

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