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Is the Arthroscopic Transillumination Test Effective in Localizing the Superficial Peroneal Nerve?
Thos Harnroongroj1, Bavornrit Chuckpaiwong1
1Department of Orthopaedics and Rehabilitation, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand.
Purpose:
To evaluate the transillumination test in showing the position of the superficial peroneal nerve (SPN) to quantify the effectiveness of this test.
Methods:
Prospectively, we selected 53 ankle arthroscopy patients (71 patients were excluded because of the invisible SPN). Demographic data including gender, weight, height, and body mass index were recorded. The intraoperative transillumination test was performed during portal establishment and recorded as positive if the SPN was visible via transillumination. The data were analyzed as mean, standard deviation, and percentage. Wilson's method was used as 95% confidence interval for proportion of the positive transillumination test.
Results:
The intraoperative transillumination test was positive in 0 of 53 patients (0%) with 95% confidence interval ranging from 0% to 6.7%.
Conclusions:
The transillumination test has no value for showing the SPN.
Level Of Evidence:
Level II, prospective diagnostic study.
