Neurorehabilitation and acquired brain injury: SAQ

This boy is in the subacute phase of recovery from a moderate to severe traumatic brain injury, the high-plasticity window in which the intensive goal-directed therapy pays the greatest dividend. The left spastic hemiparesis with the disuse of the hand, the cognitive deficits of the slowed processing speed and the poor working memory, and the disabling fatigue are the typical mixture of motor, cognitive, and participation deficits that the multidisciplinary rehabilitation must address together. [8]

Question 1 (10 marks)

Outline the multidisciplinary, goal-directed rehabilitation plan for this boy across the motor, the spasticity, the cognitive, and the participation domains, justifying each step with the principles and the evidence. [1]

A full-mark answer builds the plan around the International Classification of Functioning, doses the therapy to the recovery curve, runs the spasticity ladder with the correct dose, and addresses the hidden cognitive and fatigue deficits. [2]

The framework and the team (2 marks). The plan is built on the International Classification of Functioning, with the goals set at the activity and the participation level with the family and, where possible, the boy, using the Goal Attainment Scaling. The multidisciplinary team coordinates the physiotherapy, the occupational therapy, the speech and language therapy, the neuropsychology, the education liaison, and the social work, and the therapy is dosed to the recovery curve with the greatest intensity in this subacute window. [2]

The motor and the upper limb therapy (3 marks). The left hemiparesis with the disuse of the hand is treated with the constraint-induced movement therapy or the bimanual therapy, both supported by the Cochrane review of Hoare and the meta-analysis of Sakzewski, and the two are often combined. The constraint-induced therapy restrains the unaffected right arm and intensively trains the affected left, and the bimanual therapy trains the two hands together on the meaningful tasks. The therapy is repetitive, intense, task-specific, and salient, because the neuroplastic reorganisation is use-dependent. [1][2]

The spasticity ladder (3 marks). The spasticity in the left gastrocnemius and biceps is managed up the ladder. The physiotherapy, the stretching, the orthoses, and the serial casting keep the range and the alignment. The focal overactivity is treated with the botulinum toxin-A injected into the gastrocnemius and the biceps at 2 to 6 units per kilogram per large muscle for onabotulinumtoxinA, with a total ceiling of 400 units per session or 12 to 16 units per kilogram, whichever is lower, which for this 28 kg boy means a ceiling of about 336 to 448 units by weight, so the 400-unit session cap applies. The injection is paired with the casting and the therapy, because the injection alone does not improve the function. The over-treatment of the tone at the expense of the strength and the function is a recognised pitfall. [5]

The cognitive, the fatigue, and the return to school (2 marks). The slowed processing speed and the poor working memory are addressed with the cognitive rehabilitation, the attention process training, and the compensatory strategies, supported by the systematic reviews of Laatsch, delivered in the meaningful and the real settings. The fatigue is planned around with the graded therapy and the rest breaks, and the return to school is staged with the reduced timetable, the extra time, and the assistive technology. The cognition is re-assessed at the school transitions, because the executive deficit emerges late. [7][10]

Question 2 (10 marks)

Describe the principles of neuroplasticity and the recovery curve that underpin the rehabilitation, and critically appraise the evidence for the upper limb and the cognitive interventions. [2]

A full-mark answer states the principles, the curve, and the double vulnerability, and appraises the trials by their conclusion and their limitation. [2]

The principles of neuroplasticity (3 marks). Recovery rests on the neuroplasticity, the capacity of the surviving brain to reorganise through the sprouting of new connections, the unmasking of the silent pathways, and the take-over by the neighbouring cortex. The governing principle is use-dependent: the connections that are used are strengthened and the unused are pruned, which is why the therapy is repetitive, intense, task-specific, and salient. The recovery curve rises steeply over the first three to six months, continues more slowly through the first year, and settles onto a long tail, and the greatest intensity is delivered in this early window. [8]

The double vulnerability (2 marks). The young brain is both more plastic and more vulnerable, because the early focal injury derails the development of the skills that were about to come online. This explains the late-emerging executive deficit, in which a child who recovered well in the early grades begins to struggle as the schoolwork demands more planning and self-regulation. The team re-assesses the cognition at the school transitions to catch it. [8]

The upper limb evidence (3 marks). The Cochrane review of Hoare found that the constraint-induced movement therapy improves the upper limb function in the unilateral cerebral palsy, with the effect most consistent in the intensive, structured programmes. The meta-analysis of Sakzewski found that the constraint-induced and the bimanual approaches are both effective and of a similar magnitude, and the choice turns on the child and the goal rather than on a hierarchy of efficacy. The principles carry over to the acquired brain injury, and the caveat is that the trials are in the cerebral palsy and the translation relies on the shared motor learning principles. [1][2]

The cognitive evidence (2 marks). The two systematic reviews of Laatsch, the 2007 review and the 2020 update to 2017, support the cognitive, the emotional, and the family interventions for the children with the acquired brain injury, with the strongest support for the attention training, the compensatory memory strategies, and the family-centred behavioural approaches. The reviewers caution that the field is hampered by the small sample sizes, the heterogeneous outcomes, and the variable methodological rigour, so the team delivers the cognitive rehabilitation in the context of the meaningful tasks and the real settings rather than relying on the computerised exercises alone. [7]