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Vijayvargiya M, Shetty V, Makwana K, et al. Mid-term results of an uncemented tapered femoral stem and various factors affecting survivorship. J Clin Orthop Trauma. 2018;10(2):368-373doi: 10.1016/j.jcot.2018.02.001.
Vijayvargiya, M., Shetty, V., Makwana, K., & Suri, H. S. (2019). Mid-term results of an uncemented tapered femoral stem and various factors affecting survivorship. Journal of clinical orthopaedics and trauma, 10(2), 368-373. https://doi.org/10.1016/j.jcot.2018.02.001
Vijayvargiya, Mayank, et al. "Mid-term results of an uncemented tapered femoral stem and various factors affecting survivorship." Journal of clinical orthopaedics and trauma vol. 10,2 (2019): 368-373. doi: https://doi.org/10.1016/j.jcot.2018.02.001
Vijayvargiya M, Shetty V, Makwana K, Suri HS. Mid-term results of an uncemented tapered femoral stem and various factors affecting survivorship. J Clin Orthop Trauma. 2019 Mar-Apr;10(2):368-373. doi: 10.1016/j.jcot.2018.02.001. Epub 2018 Feb 05. PMID: 30828210; PMCID: PMC6383067.
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J Clin Orthop Trauma. 2019 Mar-Apr;10(2):368-373. doi: 10.1016/j.jcot.2018.02.001. Epub 2018 Feb 05.

Mid-term results of an uncemented tapered femoral stem and various factors affecting survivorship.

Journal of clinical orthopaedics and trauma

Mayank Vijayvargiya, Vivek Shetty, Kiran Makwana, Harpreet Singh Suri

Affiliations

  1. Department of Orthopaedics, P.D. Hinduja National Hospital, Mumbai, India.

PMID: 30828210 PMCID: PMC6383067 DOI: 10.1016/j.jcot.2018.02.001

Abstract

OBJECTIVE: CLS stem is commonly used today in primary hip arthroplasty, but only a few studies have evaluated their outcome in young high demanding patients. In Indian scenario, many patients require squatting and sitting cross-legged as part of their daily activities placing excessive load on the joint. We evaluated (I) Mid-long term functional and radiological results (II) Influence of age, gender, diagnosis, stem alignment, Canal fill index (CFI) on the outcome (III) Kaplan-Meier survivorship using revision for any reason or for aseptic loosening as an endpoint.

METHODS: Retrospective evaluation of 64 THA in 54 patients operated between July 2000 to July 2011 using CLS stem was done. Mean follow-up was 10.3 years (5-14.9 years) with 5 patients lost to follow-up and 4 patients died. Mean age at surgery was 46.8 years (18-78 years).

RESULTS: Mean Harris hip score was 89.4 (72-100). Thigh pain was present in 4 hips which were not associated with the sizing of the stem (p = .489). Stable fixation by bony ingrowth was seen in 53 hips (96.4%) and by fibrous ingrowth in 2 cases (3.6%) with no case of loosening seen. Stress shielding was seen as Grade II in 17 hips (30.9%), Grade III in 3 hips (5.4%). Pedestal formation was seen in 9 hips (16.4%) which were statistically associated with varus alignment and CFI < 80. No stem revision was performed with stem survivorship of 100%.

CONCLUSION: The mid-term survival rates and good clinical-radiological outcomes of CLS stem in high demanding Indian population were excellent.

Keywords: CLS stem; Engh criteria; Harris hip score; Primary hip arthroplasty

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