Table 2

Laser therapy characteristics of the included trials

First authorTreated areaWavelength (nm)Joules per treatment spotMean output power (mW)Seconds per treated spotNumber of spots treatedSessions/sessions per week
Al Rashoud 201431*Knee joint line (medial and lateral) and acupoints (SP9, SP10, ST36)8301.2304059/3
Alfredo 2011, 201829 52 Knee joint line (medial and lateral)9043605099/3
Alghadir 201432 Knee condyles, joint line (medial and lateral) and popliteal fossa85061006088/2
Bagheri 201123*Knee joint line8303301001010/5
Bülow 199420*Painful spots in 0–10 cm radius of the knee joint line8301.5–4.52560–1805–159/3
Delkhosh 201839 Knee joint830530167510/5
Fukuda 201130 Front knee capsule9043605099/3
Gur 200333 (1.5 J)Anterolateral and anteromedial portal of the knee9041.510150210/5
Gur 200333 (1 J)Anterolateral and anteromedial portal of the knee904111.290210/5
Gur and OktayogluAnterolateral and anteromedial portal of the knee9041.510150210/5
Gworys 201218 Knee joint line, patellofemoral joint and popliteal fossa8108400201210/5
Hegedűs 200953 Knee joint line, popliteal fossa and condyles83065012088/2
Helianthi 201654 Knee joint line (lateral) and acupoints (ST36, SP9, GB34, EX-LE-4)78545080510/2
Hinman 201441*Acupoints (locations not stated)9040.2102068-12/0.67–1
Jensen 198721*Knee joint line (medial and lateral), apex and basis of patellae9040.0540.318045/5
Kheshie 201447Front knee83016012/2
Koutenaei 201755 Front knee, popliteal fossa and femur condyles in the popliteal cavity810710070810/5
Mohammed 201856 Knee joint line (lateral) and acupoints (ST36, Sp10, GB, ashi)8085.49060712/3
Nambi 201648 Knee joint line, condyles and popliteal fossa9041.52560812/3
Nivbrant 199219*Knee joint line (medial and lateral) and acupoints (ST34, SP10, X32)9040.72418076/3
Rayegani 201243*Knee joint line and popliteal fossa880650120810/5
Tascioglu 200440 (3 J)*Painful spots on the knee83035060510/5
Tascioglu 200440 (1.5 J)*Painful spots on the knee8301.55030510/5
Youssef 201642 (904 nm)Knee joint line (medial and lateral)90436050916/2
Youssef 201642 (880 nm)*Knee joint line (medial and lateral), epicondyles and popliteal fossa880650120816/2
  • *Non-recommended low-level laser therapy dose.

  • †1250 Joules per session.