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Modulus

Modulus & Modulus-R treat complex primary and simple revision cases. Modularity allows the separation of bony fixation from biomechanical restauration.

The Modulus Stem utilizes a modified Wagner cone to gain maximum fixation

The Modulus family allows intra-operative versatility with modular necks

Small sizes are available for narrow canal

About

The Modulus uncemented stem is dedicated to complex primary and simple revision cases.

The Modulus stem utilises a modified Wagner cone to gain maximum fixation distally whilst the range of modular necks allow for the natural biomechanics to be rebuilt. The stem is intended to provide primary stability with optimal stem fixation in the femoral canal. Small sizes are also available for narrow canals. Correct biomechanical alignment is achieved thanks to its range of modular necks (restore offset, anteversion, retroversion and implant hight)[ The reduced antero-posterior cross section of the neck region provides a wide ROM [4]. An excellent osteo-integration can be seen with the Modulus stem [5].When a distal fixation is necessary, the orthopedic surgeon can choose LimaCorporate’s Modulus-R. Its double tapered profile with two different conicities supports distal fit and proximal fill. Compared to Modulus, Modulus-R stems have an extended length of 140mm. Modulus stem are 120mm in length.

Please refer to the Revision Stems section to learn more about the Modulus-R Stem.

BIBLIOGRAPHY [1] Benazzo F., Rossi S.M.P., Cecconi D.E., Piovani L., Ravasi F. Mid-term results of an uncemented femoral stem with modular neck options. Hip Int, 20(4): 427-33, 2010 [2] Wagner H., Wagner M. Cone prosthesis for the hip joint. Archives of Orthopaedic and Trauma Surgery, 120 (1-2): 88-95, 2000 [2a] Gaffurini P., Bertoglio S. Neck Modularity and CE-CE Systems. In Proceedings of the 11th Biolox® Symposium, pp. 225-231, 2006 [3] Sakai T., Sugano N., Nishii T., Haraguchi K., Ochi T., Ohzono K. Optimizing femoral anteversion and offset after total hip arthroplasty, using a modular femoral neck system: an experimental study. Journal of Orthopaedic Science, 5(5): 489-94, 2000 [4] Benazzo F., Ravasi F., Dalla Pria P., Cuzzocrea F. Prosthetic modularity in hip arthroplasty: from the F2L Multineck to the Modulus System. J Orthopaed Traumatol, 5: s24-s26, 2004 [5] Lima Internal Report

Sizing and Options

MODULUS Wagner Type stem, uncemented, DDH
Ti6Al4V
Ø13mm to 26mm, 1mm increments
Length #13 = 13mm, #14 to 26 = 100mm
Modular Necks S, L, Large S, Large L
Std offset 135°
Lateralized offset 125°

MODULUS-R Wagner Type stem, double conicity
uncemented
Ti6Al4V
Ø16 to 26mm, 1mm increments
Length #16,17,18 = 120mm, #19 to 26 = 140mm
Modular Necks S, L, B-Large
Std offset 135°
Lateralized offset 125°

Clinical Papers

Aiba H, Watanabe N, Inagaki T, Fukuoka M, Murakami H.

Differences among the observers in the assessments of Japanese orthopedic association hip scores between surgeons and physical therapists and the correlations to patients' reported outcomes after total hip arthroplasty. BMC Musculoskelet Disord. 2022 Jan 3;23(1):27. doi: 10.1186/s12891-021-04980-5.

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Benazzo F, Rossi SMP, Cecconi D, Piovani L, Ravasi F.

Mid-term results of an uncemented femoral stem with modular neck options. Hip Int. 2010 Oct-Dec;20(4):427–33.

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Benazzo FM, Piovani L, Combi A, Perticarini L.

MODULUS Stem for Developmental Hip Dysplasia: Long-term Follow-up. J Arthroplasty. 2015 Oct;30(10):1747-51

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Binazzi R.

Two-Stage Progressive Femoral Lowering Followed by Cementless Total Hip Arthroplasty for Treating Crowe IV-Hartofilakidis Type 3 Developmental Dysplasia of the Hip. J Arthroplasty. 2015 May;30(5):790-6.

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Takahashi E, Kaneuji A, Florissi I, Bragdon CR, Malchau H, Kawahara N Satisfactory

Satisfactory Outcomes in Patients Operated With Primary Total Hip Arthroplasty for Perthes-like Deformities: Results From a Surgical Technique Utilizing a Conical Stem, an Elevated Hip Center, and No Shortening Femoral Osteotomy. Arthroplast Today. 2020 Dec 25;7:29-36.

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