A 17-year-old female with type 1 Von Willebrand Disease (vWD) developed left medial calf pain while running track. Over the next 6 months, orthopedic surgery, sports medicine, vascular surgery, and neurology treated her under various working diagnoses; however, the pain, allodynia, coldness, and pale skin color worsened. She was admitted to a tertiary pediatric hospital for intractable pain where PM&R diagnosed her with complex regional pain syndrome (CRPS) type 1, began gabapentin, and initiated an aggressive inpatient rehabilitation program. During her 3 weeks of inpatient rehabilitation, passive range of motion of knee extension improved from 40° from extension to full extension, and ankle dorsiflexion improved from 15° from neutral to a consistent range of motion beyond neutral. Additional outcome measures were distance of ambulation and assistive device usage; from admission to inpatient rehabilitation to 2 months postdischarge, her weight-bearing tolerance progressed from nonweight-bearing to partial weight-bearing, and ambulation improved from 20 feet with a three-point crutch gait to unlimited distances with a four-point crutch gait. This is the first known case of a bleeding disorder as the likely underlying microvascular pathology associated with CRPS, a theory exposed in 2010.
Context
Shoulder and neck pain are leading causes of disability worldwide. Rotator cuff pathology has strong associations with such pain and is extensively targeted by healthcare practitioners. A dysfunctional lower trapezius muscle has also been shown to contribute to neck and shoulder pain, yet it is often overlooked.
Objectives
This systematic review analyzes those with a history of, or who are currently managing, shoulder or neck pain to indicate differences in measures of lower trapezius function when compared to subjects without that pain.
Methods
Studies with no age restrictions were included in the study. Studies could determine lower trapezius muscle function with any quantifiable measurement tool or clinical assessment. If the study included a control group (no pain) and a comparator group (pain), and if lower trapezius muscle function was assessed in both, the study was typically included. The significance of the lower trapezius muscle function change was summarized in these pain patients. From a final total of 18 studies identified, level of muscle activity, muscle activation, time to onset, muscle strength, and muscle thickness were reported.
Results
The 18 included articles involved 485 participants with shoulder and/or neck pain and 455 without. Half of the shoulder pain studies (6/12), and all of the neck pain studies (6/6), demonstrated that the lower trapezius had a noticeable impact. The lower trapezius muscle in participants with shoulder and neck pain tended to show decreased muscle strength, and decreased time to onset/latency.
Conclusions
The findings from this systematic review should be taken into consideration when assessing and treating patients with shoulder and neck pain. Future studies that define the type and duration of shoulder and neck pain, as well as prospectively assessing lower trapezius muscle function in those with and without that pain, are needed.
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