Postoperative Shoulder Mobility After Breast Cancer Surgery
A 52-year-old woman underwent left modified radical mastectomy with axillary lymph node dissection 3 weeks ago. She has a 15 cm surgical scar across the anterior chest wall and axilla. She reports tightness and limited shoulder flexion to 90 degrees, abduction to 80 degrees, and external rotation to 20 degrees. She has mild lymphedema (2 cm circumference difference at the forearm). Her oncologist has cleared her for physical therapy but advises avoiding heavy lifting and extreme stretching for 6 weeks. She is eager to return to swimming and gardening. She works as a elementary school teacher and needs full shoulder function for writing on the board and lifting books.
1. What are the key impairments and activity limitations to address in the physical therapy plan of care? Prioritize them and justify your prioritization based on the patient's goals and medical precautions.
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Key impairments: limited shoulder ROM (flexion, abduction, external rotation), scar tightness, mild lymphedema, and potential muscle weakness. Activity limitations: inability to perform overhead activities (swimming, gardening), difficulty with writing on the board and lifting books. Prioritization: 1) Prevent worsening lymphedema and maintain skin integrity (medical precaution). 2) Improve shoulder ROM within safe limits (avoid aggressive stretching for 6 weeks). 3) Gradually strengthen shoulder and scapular muscles. 4) Address scar mobility. Justification: The patient's goals of swimming and gardening require full overhead ROM, but early aggressive stretching could increase lymphedema risk. Therefore, gentle ROM and lymphatic precautions take precedence initially. Writing on the board requires shoulder flexion to 90+ degrees, which is currently limited; thus, improving flexion is important for work. Lifting books requires strength and endurance, which will be addressed after ROM improves. The 6-week precaution means we focus on active-assisted ROM and avoid end-range stretching until cleared.
2. Design a 4-week home exercise program that respects the medical precautions and addresses the patient's goals. Include frequency, intensity, and progression criteria.
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Weeks 1-2: Gentle active-assisted shoulder flexion, abduction, and external rotation in pain-free range (up to 90 degrees flexion, 80 degrees abduction, 20 degrees ER) using a cane or pulley. Perform 10 repetitions, 3 times per day. Scar massage after incision fully healed (check with surgeon) for 5 minutes daily. Lymphatic precautions: avoid blood pressure cuffs and venipuncture on left arm, keep skin clean, avoid heavy lifting (>5 lbs). Weeks 3-4: Progress to active ROM and light resistance (1-2 lb) for shoulder flexion and abduction, 10-15 reps, 2 times per day. Add scapular stabilization exercises (e.g., wall slides, scapular retraction). Progression criteria: Increase ROM by 10 degrees per week as tolerated without increased swelling or pain. If lymphedema worsens (increase >2 cm), consult lymphedema specialist and reduce exercise intensity. After 6 weeks, if cleared, progress to overhead activities and swimming with gradual return.