School-Age Child with Cerebral Palsy: Goal Conflict Before Surgery
A 9-year-old girl with spastic diplegic cerebral palsy (GMFCS level II) is being evaluated before planned single-event multilevel surgery. She walks with a posterior walker at school and uses a wheelchair for distances over 200 meters. Her parents' stated goal is 'straight legs and no walker.' The child's stated goal, when asked directly, is to keep up with her classmates at recess and to stop falling on the playground. Examination: popliteal angle 55 degrees bilaterally, fixed knee flexion contracture of 15 degrees, ankle dorsiflexion to neutral with knee extended, hamstring and gastrocnemius spasticity (Modified Ashworth 2), and a crouched gait with excessive knee flexion in stance. She ambulates 10 meters with the walker in 22 seconds and reports two falls in the past month. The surgeon asks you to weigh in on readiness and goal-setting before the procedure.
1. How do you reconcile the parents' goal with the child's goal, and what is your role in the surgical decision?
Read the worked answer
The parents' goal ('straight legs and no walker') is an outcome the surgery may not deliver and that the child has not endorsed. The child's goals - participation at recess and fall reduction - are functional, measurable, and directly relevant to the procedure. My role is not to approve or veto surgery but to:
- Surface the discrepancy explicitly to the family and surgeon, in language that honors the parents' concern (they want less disability) while centering the child's participation priorities.
- Translate goals into measurable targets that the surgical and rehab team can plan around: falls per month, distance/time at recess, ability to carry a lunch tray, playground surface tolerance.
- Manage expectations with evidence-based framing: multilevel surgery can improve alignment and gait kinematics, but it does not reliably eliminate an assistive device in a child at GMFCS II, and postoperative strength and function often decline before improving. Promising 'no walker' is not supportable.
- Assess developmental readiness and assent - a 9-year-old can participate in goal-setting and should be included in the conversation, not talked about.
Document the child's stated goals, the parents' goals, and the education provided.
2. What pre-operative baseline data would you collect, and how does the crouched gait and fixed contracture shape your postoperative prognosis?
Read the worked answer
Baseline data (function, not just impairment):
- Gait velocity and time over a fixed distance (10-m walk test), with and without the walker.
- Fall frequency and circumstances over the past month (already two falls - establish a denominator).
- Gross Motor Function Measure dimension E (walking, running, jumping) as a participation-relevant functional measure.
- Range of motion: popliteal angle, knee flexion contracture, ankle dorsiflexion - measured consistently with a documented method so change is interpretable.
- Strength (e.g., manual muscle testing or a functional strength task) and endurance.
- Participation: recess activity, playground equipment use, and the child's own rating.
Prognosis reasoning:
- The fixed 15-degree knee flexion contracture and 55-degree popliteal angle mean the crouch is not purely dynamic; some component is structural and will not resolve with tone management alone, which supports the surgical indication but also sets a realistic ceiling.
- Crouched gait is mechanically inefficient and increases quadriceps demand; correcting alignment can improve efficiency, but strength and motor control must be rebuilt postoperatively. Expect a temporary functional decline (reduced mobility, possible loss of ambulation distance) before gains.
- Hamstring lengthening risks overlengthening and a new problem (increased anterior pelvic tilt, diminished push-off), so the postoperative plan must include targeted strengthening and gait retraining.
- Frame prognosis as a range with milestones and a defined reassessment point, not a single predicted outcome.