LightNeedle - RJ Laser

Abstracts Laser Acupuncture
Laser-Needle Therapy for Spontaneous Osteonecrosis of the Knee
Winfried Banzer, M.D., Ph.D.,1 Markus Hübscher, Ph.D.,1 and Detlef Schikora, Ph.D.2
Objective: This case report describes the treatment of a 63-year-old patient with spontaneous
osteonecrosis of the knee (SONK). Background Data: SONK usually appears in the elderly patient
without the typical risk factors for osteonecrosis. It is characterized by acute and sudden pain,
mostly occurring at the medial side of the knee joint. Symptoms usually worsen with physical
activity and improve with rest. Besides physical therapy, limited weight-bearing and the use of
analgesics and nonsteroidal anti-inflammatory drugs, we propose lowlevel laser therapy (LLLT)
as a conservative treatment option.
Methods: LLLT was carried out using laser needles emitting radiation with wavelengths of 685
and 885 nm, and a power density of 17.8 W/cm2. Therapy sessions lasted 60 min and were
performed daily over a period of 3 mo. The total irradiation dose emitted by 8 laser needles in 60
min of treatment was 1008 J.
Results: Magnetic resonance imaging revealed distinct restitution
of the spongiosa edema 5 wk after treatment onset, and the final check-up at 35 wk demonstrated
complete restoration of integrity.
Conclusion: The present case report provides the first indication that laser-needle therapy may
be a promising tool for complementary and alternative therapeutic intervention for those with
SONK.
Quantification of Gender Specific Thermal Sensory
and Pain Threshold Before and After Laserneedle Stimulation
1Abteilung für Biomedizintechnische Forschung in Anästhesie und Intensivmedizin,
Medizinische Universität Graz, Österreich
2Fachbereich Physik – Optoelektronik, Universität Paderborn, Deutschland
3Klinische Abteilung für Neuro- und Gesichtschirurgische Anästhesiologie und Intensivmedizin,
Medizinische Universität Graz, Österreich
Quantitative thermal sensory and pain threshold testing (QST) was performed in 29 adult
healthy volunteers (mean age 24.2 ± 2.7 years; range: 18–29 years; 20 females, 9 males) using
the Thermal Sensory Analyser TSA-II (Medoc Advanced Medical Systems, Ramat Yishai,
Israel, and Minneapolis, Minnesota, USA) before and after laser needle acupuncture and placebo
stimulation, respectively.
Significant (p 0,001; t-test) gender-specific differences were seen on cold pain threshold
analysis. No significant changes in parameters of thermal sensory and pain thresholds were
found before and after laser needle or placebo stimulation at acupuncture points for acute pain.
However, a trend towards change in the median value of cold pain sensation after laser needle
stimulation (p = 0.479; paired t-test; n.s.) was seen within the group of healthy females.
The influence of stimulation of acupuncture points for chronic pain on the various parameters
needs to be clarified in future studies.
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