Press-fit condylar total knee arthroplasty

Martin, Scott D.; McManus, J; Scott, Richard D.; Thornhill, Thomas S.

doi:10.1016/s0883-5403(97)90132-7

Cited by 59 publications

(16 citation statements)

References 8 publications

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“…Assessing surgical risk, using the ASA classification, 47.8 % of patients were classified as ASA III and ASA IV, similar to the García-Crespo et al [23] series published using this scale. According to the literature, our constrained condylar primary arthroplasty outcomes are very similar to those published by Anderson et al [13], Martin et al [27] and Buehler et al 28]. Unstable valgus knees obtained somewhat better outcomes than the unstable varus knees.…”

Section: Discussionsupporting

confidence: 85%

Primary modular total knee replacement in severe and unstable osteoarthritis. Predictive factors for failure

Luque

Rizo

Urda

et al. 2015

International Orthopaedics (SICOT)

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Section: Discussionsupporting

confidence: 85%

Primary modular total knee replacement in severe and unstable osteoarthritis. Predictive factors for failure

Luque

Rizo

Urda

et al. 2015

International Orthopaedics (SICOT)

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“…The average flexion achieved by this prosthesis was 107–115° 10–14. Similarly, cruciate retaining designs achieve a flexion of around 110–112° 1516. Although this was a significant improvement, it was not enough for daily habits like cross-legged sitting and squatting that are so common in the Indian subcontinent.…”

Section: Introductionmentioning

confidence: 95%

The INDUS knee prosthesis - Prospective multicentric trial of a posteriorly stabilized high-flex design: 2 years follow-up

Sancheti

Laud²,

Bhende³

et al. 2009

Indian J Orthop

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Background:The anatomical and morphological differences and high-flexion daily activities in the Asian population have since ever prompted for development of customized knee replacement systems. INDUS knee system has advantages both of high-flex designs and is developed by keeping the anatomical variations of the native population in mind. The purpose of this study is to analyze the 2-year follow-up results using the INDUS prosthesis.Materials and Methods:Two hundred and ninety-seven knees in 276 patients were prospectively analyzed. There were 65 men (72 knees) and 211 (225 knees) women with a mean age of 64.56 years. Two hundred and forty-five knees had primary osteoarthritis, 48 knees had rheumatoid arthritis, and four knees had post-traumatic arthritis. Clinical parameters, including the Knee Society scores (knee score and function score), range of motion, post-operative anterior knee pain, and complications were recorded. Pre- and post-operative serial radiographs were analyzed for limb alignment, component positioning, and evidence of loosening.Results:The patients were followed-up for an average of 2.59 years (range, 2–3.3 years). The mean knee score and the mean function score were significantly improved from a pre-operative value of 39.4 points and 46.7 points to a post-operative value of 87 points and 86 points, respectively (P value <0.05). Two hundred and thirty four knees had no anterior knee pain while 63 knees had mild to moderate pain, but none of the patients requested any intervention for the same. Of the 276 patients (297 knees), 79 knees had flexion above 140°, 167 had a flexion range of 130–140°, 27 had a flexion range of 100–130°, and 24 knees had a flexion < 100°, with the mean range of movement being 132.9°. Improvements in the range of movement were retained over time and a total of 205 patients (224 knees, 75.7%) could squat or sit cross-legged at the final follow-up. The mean tibiofemoral angle was 8.5°±6.9° of varus pre-operatively and 5.4°±2.2° of valgus (3–7° of valgus) at the final follow-up, with no loss of alignment noted in any case. One knee underwent revision for late infection while another knee had periprosthetic supracondylar fracture treated with plate fixation.Conclusions:Use of the INDUS knee prosthesis has a favorable short-term outcome, with a mean range of 135° flexion and excellent knee scores.

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“…The preservation type, in which posterior cruciate ligament is preserved, is considered better than the replacement type for performing functions, such as, climbing stairs, and has the advantage of simplifying revision surgery due to less loss of bone (Figure 2). However, knee joints with degenerative arthritis usually show soft tissue contracture, and when preserving the posterior cruciate ligament, the soft tissue balance is not easy to achieve, which possibly increases the risk of early failure due to polyethylene insert overloading caused by posterior cruciate ligament unbalanced tension [16]. When the posterior cruciate ligament substitution type is used, even degenerative knee joints with relatively severe deformities can achieve ligament balance, and when flexed at 60-70 degrees, the post of the tibial polyethylene contacts the cam of the femoral component and induces posterior placement of femoral bone, which allows relatively satisfactory rollback and can achieve sufficient knee joint flexion (Figure 3) [17].…”

Section: Posterior Cruciate Ligament Retention Versus Substitutionmentioning

confidence: 99%

The Evolution of Modern Total Knee Prostheses

Song¹,

Seon²,

Moon³

et al. 2013

Arthroplasty - Update

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Press-fit condylar total knee arthroplasty

Cited by 59 publications

References 8 publications

Primary modular total knee replacement in severe and unstable osteoarthritis. Predictive factors for failure

Primary modular total knee replacement in severe and unstable osteoarthritis. Predictive factors for failure

The INDUS knee prosthesis - Prospective multicentric trial of a posteriorly stabilized high-flex design: 2 years follow-up

The Evolution of Modern Total Knee Prostheses

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