Meet the Lachmeter

Lachmeter is the digital evolution of the Rolimeter (Aircast), a device that has already proved to be comparable to KT-1000 / KT-2000 (MEDmetric Corp), according to the scientific references below. It’s a lightweight, portable, accurate and easy-to-use arthrometer.

Very useful for pre and post operative evaluations. Decisive in cases where there is doubt between partial or total lesions of the Anterior Cruciate Ligament. Enteded for Orthopedists and Physioterapists.

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To be more precise, you don't need heavy equipments.

Lighter than the others

Made of stainless steel to ensure
lightness and therefore be easy to
carry and handle.

More accurate

Uses high precision digital
measurement so you can be more
accurate with your results.


Healthcare professionals, such as
physiotherapists and orthopedists, who
seek more precise results.


It comes with a cushion to be placed
behind the thigh, which facilitates
the Lachmeter's use.


As a digital equipment, the
Lachmeter doesn't need to be


Made by and for orthopedists. You can get
more accurate results on your pre and
postoperative cases.

Scientific References

Lachmeter - The digital Rolimeter ®

1.Ganko A1, Engebretsen L, Ozer H. The rolimeter: a new arthrometer compared with the KT-1000. Knee Surg Sports Traumatol Arthrosc. 2000;8(1):36-9.

2.Balasch H1, Schiller M, Friebel H, Hoffmann F. Evaluation of anterior knee joint instability with the Rolimeter. A test in comparison with manual assessment and measuring with the KT-1000 arthrometer.Knee Surg Sports Traumatol Arthrosc. 1999;7(4):204-8.

3.Papandreou MG1, Antonogiannakis E, Karabalis C, Karliaftis K.Inter-rater reliability of Rolimeter measurements between anteriorcruciate ligament injured and normal contra lateral knees. Knee SurgSports Traumatol Arthrosc. 2005 Oct;13(7):592-7. Epub 2005 Jan 11.

4.Sonnery-Cottet B1, Thaunat M2, Freychet B2, Pupim BH2, MurphyCG2, Claes S3. Outcome of a Combined Anterior Cruciate Ligament and Anterolateral Ligament Reconstruction Technique With a Minimum2-Year Follow-up. Am J Sports Med. 2015 Jul;43(7):1598-605. doi:10.1177/0363546515571571. Epub 2015 Mar 4.

5.Panisset JC1, Ntagiopoulos PG, Saggin PR, Dejour D. A comparisonof Telos™ stress radiography versus Rolimeter™ in the diagnosis of different patterns of anterior cruciate ligament tears. Orthop TraumatolSurg Res. 2012 Nov;98(7):751-8. doi: 10.1016/j.otsr.2012.07.003. Epub 2012Oct 11.

6.Mayr HO, Hoell A, Bernstein A, et al. Validation of a measurement device for instrumented quantification of anterior translation androtational assessment of the knee. Arthroscopy 2011;27:1096-104.

7.Pugh L, Mascarenhas R, Arneja S, Chin PY, Leith JM. Current concepts in instrumented knee-laxity testing. Am J Sports Med 2009;37:199-210.

8.Daniel DM, Stone ML, Sachs R, Malcom L. Instrumented measurement of anterior knee laxity in patients with acute anterior cruciate ligament disruption. Am J Sports Med 1985;13:401-7.

9.Hughston JC, Andrews JR, Cross MJ, Moschi A. Classification ofknee ligament instabilities. Part I. The medial compartment and cruciate ligaments. J Bone Joint Surg Am 1976;58:159-72.

10.Hemmerich A, van der Merwe W, Batterham M, Vaughan CL. Kneerotational laxity in a randomized comparison of single-versus double-bundle anterior cruciate ligament reconstruction. Am J SportsMed 2011;39:48-56.

11.Dejour D1, Ntagiopoulos PG, Saggin PR, Panisset JC. The diagnostic value of clinical tests, magnetic resonance imaging, and instrumented laxity in the differentiation of complete versus partial anterior cruciate ligament tears. Arthroscopy. 2013 Mar;29(3):491-9. doi:10.1016/j.arthro.2012.10.013. Epub 2013 Jan 20

12.Pollet V, Barrat D, Meirhaeghe E, Vaes P, Handelberg F. The role ofthe Rolimeter in quantifying knee instability compared to the functional outcome of ACL-reconstructed versus conservatively-treatedknees. Knee Surg Sports Traumatol Arthrosc 2005;13:12-8.

13.Mayr HO1, Hoell A, Bernstein A, Hube R, Zeiler C, Kalteis T,Suedkamp NP, Stoehr A. Validation of a measurement device for instrumented quantification of anterior translation and rotational assessment of the knee. Arthroscopy. 2011 Aug;27(8):1096-104.

14.Sonnery-Cottet B, Lavoie F, Ogassawara R, Scussiato RG, Kidder JF,Chambat P. Selective anteromedial bundle reconstruction in partialACL tears: a series of 36 patients with mean 24 months follow-up. KneeSurg Sports Traumatol Arthrosc 2010;18:47-51.


See what our costumers think about the new arthrometer and garantee your expectations fufilled.

Bertrand Sonnery-Cottet, MD

Centre Orthopedique Santy, Lyon - Sport Medicine, FIFA medical Center of Excellence

I use the Lachmeter in my daily practice. It is easy to use, reliable and provides accurate data for clinical and research purposes.


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