right knee arthroplasty (Class 27447 ) Expert Diagnosis, HPI, and
Treatment Plan for Walden Students I Human Case Study
Patient Profile
• Age: 52 years
• Gender: Male
• Chief Complaint: Persistent right knee pain and functional limitation
• Procedure Planned: Elective total right knee arthroplasty (Class 27447)
,1. History of Present Illness (HPI)
• Patient reports gradual onset of right knee pain over the past 2 years.
• Pain worsens with activity, especially walking, climbing stairs, and standing for long
periods.
• Reports morning stiffness lasting about 30 minutes.
• Occasionally hears crepitus (grinding sound) and feels instability in the knee.
• Pain intensity has progressively increased despite use of NSAIDs and physical
therapy.
• No history of trauma or recent injury.
• No systemic symptoms like fever, weight loss, or chills.
• Pain limits ability to work and perform daily activities.
• Patient denies any previous knee surgeries.
2. Past Medical History (PMH)
• Osteoarthritis diagnosed 3 years ago.
• Hypertension, controlled with medication.
• No known allergies.
• No history of diabetes or cardiovascular disease.
3. Physical Exam
• Inspection: Mild swelling, varus deformity of right knee.
• Palpation: Tenderness along medial joint line.
• Range of Motion: Reduced flexion (90 degrees), full extension not
achieved (lacking 10 degrees).
• Stability Tests: Mild medial collateral ligament laxity.
• Gait: Antalgic gait favoring the right side.
• Neurovascular: Intact distal pulses and sensation.
4. Diagnostic Workup
, • X-rays: Show joint space narrowing, osteophyte formation, subchondral
sclerosis consistent with advanced osteoarthritis.