Functional and radiological outcome of total knee arthroplasty in varus knee: a prospective observational study

Authors

  • Sai Vamshi B. Department of Orthopaedics, RIMS, Raichur, Karnataka, India
  • Bhushan Chickle Department of Orthopaedics, RIMS, Raichur, Karnataka, India
  • Kiran Kumar A. S. Department of Orthopaedics, BMCRC, Ballari, Karnataka, India

DOI:

https://doi.org/10.18203/issn.2455-4510.IntJResOrthop20262813

Keywords:

Total knee arthroplasty, Varus knee, Osteoarthritis, Knee society score

Abstract

Background: Varus deformity in osteoarthritic knees causes medial compartment overload, pain, instability, and progressive functional limitation. Total knee arthroplasty (TKA) is an established treatment for advanced disease. This study evaluated the clinical and radiological outcomes of TKA in patients with varus knee deformity.

Methods: This prospective observational study was conducted in the Indian tertiary-care teaching hospital, from May 2023 to January 2025. Institutional ethical committee clearance and informed consent from patient was taken. Fifty knees in patients aged 45-80 years with primary or secondary osteoarthritis or rheumatoid arthritis associated with varus deformity underwent posterior-stabilized TKA through a standardized medial parapatellar approach.

Results: Mean knee society clinical scores improved from 48.2 to 84.6 and functional scores from 47.1 to 85.3. Alignment correction and outcome categories are to be reported as per final tables.

Conclusions: TKA provided significant functional improvement and reliable deformity correction.

References

Drake RL, Vogl W, Mitchell AWM, Grray H. Gray's anatomy for students. 2nd Edition. Philadelphia: Churchill Livingstone/Elsevier; 2010.

Adam RF, Noble J. Primary total knee arthroplasty in the elderly. J Arthroplasty. 1994;9(5):495-7.

Chaudhary D, Bhatia N, Krishna L, Ahmed A, Singh A, Rao KS. Total knee arthroplasty in arthritic knee-our experience, Indian J Ortho. 1999;33(4):271.

Boyd AD Jr, Ewald FC, Thomas WH, Poss R, Sledge CB. Long-term complications after total knee arthroplasty with or without resurfacing of the patella. J Bone Joint Surg Am. 1993;75(5):674-81.

Kim YH, Park JW, Kim JS. Clinical outcomes of TKA in patients with varus knee. J Bone Joint Surg Am. 2018;100(14):1230-6.

Goh JC, Bose K, Khoo BC. Gait analysis study on patients with varus osteoarthrosis of the knee. Clin Orthop Relat Res. 1993;(294):223-31.

Mullaji AB, Shetty GM, Kanna R, Vadapalli RC. The influence of preoperative deformity on valgus correction angle: an analysis of 503 total knee arthroplasties. J Arthroplasty. 2013;28(1):20-7.

Khamaisy S, Nam D, Thein R, Rivkin G, Liebergall M, Pearle A. Limb alignment, subluxation, and bone density relationship in the osteoarthritic varus knee. J Knee Surg. 2015;28(3):207-12.

Ebrahimzadeh MH, Makhmalbaf H, Birjandinejad A, Golhasani Keshtan F, Hoseini HA, Mazloumi SM. The Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) in Persian speaking patients with knee osteoarthritis. Arch Bone Jt Surg. 2014;2(1):57-62.

Rand JA, Ilstrup DM. Survivorship analysis of total knee arthroplasty. Cumulative rates of survival of 9200 total knee arthroplasties. J Bone Joint Surg Am. 1991;73(3):397-409.

Ferugson W. Excision of knee joint: recovery with a false joint & a useful limb. Med Times Gaz. 1861;1:601.

Ranawat AS. The history of T.K. A in Bonnin MAA, Bellemans J. ed. The knee joint. Paris Springer Verlag. 2012;699-707.

Scuderi GR, Insall JN. Total knee arthroplasty. Current clinical perspectives. Clin Orthop Relat Res. 1992;(276):26-32.

Mohamed SA, Hassan K, Elsadek M, Attia A. Total Knee Replacement in Severe Varus Deformity. Zagazig Univ Med J. 201926(6):14.

Hafeez M, Hassan M, Hassan MA, Salim AAEH. Total Knee Replacement in Severe Varus Knees. Egypt J Hosp Med. 2019;77(4):22.

Mathew A, Kumar A, Babu M, Ranjith T, John S. Radiological and Functional Outcome of Medial Tibial Reduction Osteotomy for Severe Varus Deformity in patients undergoing Total Knee Arthroplasty-A Prospective Cohort Study. J Clin Diagn Res. 2021;15(6):RC01-5.

Jose R, Kannan V. Functional and radiological outcome of total knee replacement in osteoarthritis with varus deformity. J Orthop Dis Traumatol. 2022;5:100-9.

Saini S, Kaushik SK, Gupta S, Rathee S. Functional and Radiological Outcomes of Total Knee Arthroplasty in Osteoarthritis with Varus Deformity of Knee: A Prospective Study. SRMS J Med Sci. 2023;8(2):110-4.

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Published

2026-08-18

How to Cite

B., S. V., Chickle, B., & A. S., K. K. (2026). Functional and radiological outcome of total knee arthroplasty in varus knee: a prospective observational study. International Journal of Research in Orthopaedics. https://doi.org/10.18203/issn.2455-4510.IntJResOrthop20262813

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Original Research Articles