Posture in Burn Shoulder Rehabilitation: Why Range of Motion Remains Limited Even After Scar Improvement
- Shiou-Han Yang
- 9 hours ago
- 4 min read
Shiou-Han Yang, Senior Occupational Therapist
Taipei Rehabilitation Center, Sunshine Social Welfare Foundation
Posture in burn shoulder rehabilitation is often overlooked despite its critical role in functional recovery. From pressure garments to splints and exercise programs, scar management is typically the primary focus. However, clinicians frequently encounter situations where, despite trying different interventions:
Scars have softened, yet active range of motion does not improve.
Passive range of motion increases, but active control does not follow.
Active movement appears adequate, but patients still report pain or display abnormal movement patterns.
For therapists familiar with burn rehabilitation, scar management has become almost automatic. The visibility of scars, combined with the long duration required for their management often dominate clinical attention. Yet beyond scars, many other factors can continue to limit functional recovery.
This article aims to highlight the importance of posture as a key—but often underrecognized—factor in shoulder function after burns. It will guide you through the factors that make burn-related shoulder rehabilitation challenging, helping you move beyond a scar-focused framework and offering a fresh ‘postural’ perspective for shoulders that have reached a treatment plateau. The goal is to help clinicians recognize when it may be contributing to movement limitations
Posture in Burn Shoulder Rehabilitation: Why Does it Matter?
Posture is essential in burn shoulder rehabilitation because it can have an impact on movement quality. Poor posture can potentially:
Disrupt scapulohumeral rhythm
Alter muscle balance and coordination
Reduce active range of motion
Cause compensatory movement patterns
Increase pain during movement
Factors Beyond Scars Affecting Shoulder Function in Burn Patients
While scars remain a central focus in burn rehabilitation, it is not the only factor influencing shoulder function. Limitations in movement can arise from a combination of muscular, mechanical, and neurological contributors that exist beyond the scar itself. Recognizing these factors allows clinicians to adopt a more comprehensive and effective treatment approach. These factors include:
Insufficient strength of the primary mover muscles
Muscle imbalance or poor coordination, resulting in abnormal scapulohumeral rhythm
Pain-induced muscle guarding
Prolonged maintenance of certain specific postures
Structural joint abnormalities (adhesion or ossification)
Neurological injury (less common but important to consider)
These factors may occur individually, but more often they are present simultaneously. Prolonged maintenance of specific postures—especially those that deviate from normal musculoskeletal alignment—can alter muscle force balance, disrupt scapulohumeral rhythm, and lead to deviations in movement patterns, thereby exacerbating the severity of problems caused by other contributing factors.
When to Include Posture in Burn Shoulder Rehabilitation Intervention Plan
When scar treatment has been ongoing for some time, but shoulder abduction ROM has plateaued
The most notable features are as follows: when passive range of motion reaches its maximum range of motion, there is no scar blanching, no obvious skin tension on palpation, and the joint end-feel is normal—consistent with what would be expected for that joint at this angle. In this situation, in addition to continuing efforts to optimize passive mobility, it is also necessary to assess whether there is remaining potential for improvement in active factors.
Skin fragility limits progression of exercise intensity
When the skin around the shoulder is fragile or wounds are still present, it may be unable to tolerate sustained pressure or friction, making it difficult to progress the intensity of pressure therapy and stretching exercises. In this situation, postural and motor control–based training becomes a safer option, as direct contact is relatively gentle and brief compared with prolonged loading.
When passive motion is good, but active movement is unstable or painful
Specific examples include:
Difficulty maintaining a consistent abduction trajectory within a fixed plane (frontal plane, scapular plane, or sagittal plane).
Discontinuous movement, requiring the motion to be completed in segments.
Pain or discomfort occurring during the movement or at the end range.
Abnormal movement patterns that do not reflect normal scapulohumeral rhythm, such as compensatory shoulder elevation (shrugging).
This type of presentation is commonly associated with scapulohumeral rhythm imbalance.
In individuals with scapulohumeral rhythm dysfunction, resting posture is not necessarily affected. However, when obvious alignment deviations are already present in static posture, they are often accompanied by abnormalities in scapulohumeral rhythm during movement.
Common Postures in Burn Patients and Their Impact
Common postural patterns include:
Forward head
Rounded shoulders
Thoracic kyphosis
Protruding abdomen
Anterior pelvic tilt
These alter the kinetic chain between the spine, scapula, and shoulder. Changes in skeletal alignment place muscles in suboptimal length-tension relationships, reducing their ability to activate, coordinate, and stabilize effectively.
As a result, even when scars soften and passive range improves, active movement may remain limited, inefficient, or painful if posture and motor control are not addressed simultaneously.
Conclusion
Taken together, these considerations highlight an important clinical shift: even when scar-related limitations improve, shoulder function may remain restricted if posture and movement patterns are not addressed. Recognizing when posture contributes to persistent limitations allows therapists to expand their clinical reasoning beyond tissue-level factors and toward more integrated movement-based approaches.
This also raises important questions about how to assess posture effectively and how to intervene safely within the constraints of burn recovery—areas that require a more structured and in-depth exploration.
To Learn More About Posture in Burn Shoulder Rehabilitation…
Posture is often visible—but not always easy to interpret in a clinical context.
Why are burn patients more prone to these postural patterns?
What interventions are safe and effective under scar constraints?
These are important questions that go beyond simple observation. They require a deeper understanding of how posture interacts with movement, tissue healing, and motor control in burn rehabilitation.
If you are looking to build a more structured approach to these challenges—from understanding underlying mechanisms to applying them in clinical practice—you may find the following resources helpful.
Why do shoulder problems occur in burn patients? Learn how posture affects shoulder movement and the unique challenges in burn rehabilitation.
How should shoulder problems in burn patients be treated? Learn a step-by-step clinical approach, from assessment to intervention strategies that can be applied in practice.
What challenges are you currently facing in clinical practice?
If you have encountered difficult cases or unresolved questions, feel free to share. Your experience may resonate with many other therapists facing similar challenges.
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