Improvement of voluntary quadriceps muscle activation after total knee arthroplasty

Berth, Alexander; Urbach, Dietmar; Awiszus, Friedemann

doi:10.1053/apmr.2002.34829

Cited by 130 publications

(151 citation statements)

References 40 publications

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“…Similar findings were reported by Berth et al (2002) and Yoshida et al (2008), who investigated muscle strength from 1 to 3 years after TKA and observed an increase relative to preoperative values. However, Vahtrik et al (2012), who investigated muscle strength at 3 and 6 months after TKA, found that postoperative muscle strength was lower than the preoperative value.…”

Section: Discussionsupporting

confidence: 89%

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Moderate varus/valgus malalignment after total knee arthroplasty has little effect on knee function or muscle strength

Stučinskas¹,

Robertsson²,

Širka³

et al. 2015

Acta Orthopaedica

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Background and purpose — Postoperative muscle strength and component alignment are important factors affecting functional results after total knee arthroplasty (TKA). We are not aware of any studies that have investigated the relationship between them. We therefore investigated whether coronal malalignment of the mechanical axis and/or of individual implant components would affect knee muscle strength and function 1 year after TKA surgery.Patients and methods — We included 120 consecutive osteoarthritis (OA) patients admitted for TKA. Preoperative active range of motion (ROM) of the knee, patient age, sex, and BMI were recorded and the Knee Society score (KSS) and knee joint extensor/flexor muscle strength were assessed. At 1-year follow-up, the mechanical and coronal component alignment was measured from a postoperative long standing radiograph, and ROM, KSS, and muscle strength measurements were taken in 91 patients. Functional outcome and muscle strength measurements were compared between normally aligned and malaligned TKA groups.Results — 29 of 91 TKAs were malaligned, i.e. they deviated more than 3° from the neutral mechanical axis. 18 femoral components and 15 tibial components were malaligned. Before surgery, the malaligned and normally aligned groups were similar regarding sex distribution, BMI, ROM, KSS, and muscle strength. At the 1-year follow-up, the differences between the groups regarding knee joint function and muscle strength were small, not statistically significant, and barely clinically relevant.Interpretation — Moderate varus/valgus malalignment of the mechanical axis or of individual components has no relevant clinical effect on function or muscle strength 1 year after TKA surgery.

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Section: Discussionsupporting

confidence: 89%

“…However, full recovery of muscle strength after TKA is uncommon (Berth et al 2002, Valtonen et al 2009, Maffiuletti et al 2010, Vahtrik et al 2012). …”

mentioning

confidence: 99%

Moderate varus/valgus malalignment after total knee arthroplasty has little effect on knee function or muscle strength

Stučinskas¹,

Robertsson²,

Širka³

et al. 2015

Acta Orthopaedica

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“…Long-term outcomes after TKA reinforce this notion because TKA recipients consistently indicate an improved quality of life, although their measured and perceived physical abilities remain worse than age-matched nonarthritic populations (for a recent review, see Meier et al [18]). A number of reports suggest there is a deficit of quadriceps muscle strength of approximately 20% [1,2,9,[33][34][35] with associated functional limitations in mobility and physical activity [4,6,7,27,34,38] that remains 6 months to 13 years after surgery.…”

Section: Introductionmentioning

confidence: 99%

Reversing Muscle and Mobility Deficits 1 to 4 Years after TKA: A Pilot Study

LaStayo

Meier

Marcus

et al. 2009

Clin Orthop Relat Res

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Muscle and mobility deficits can persist for years after a total knee arthroplasty (TKA). The purposes of this study were (1) to determine if 12 weeks of rehabilitation with resistance exercise induces increases in muscle size, strength, and mobility in individuals 1 to 4 years after a TKA; and (2) to compare the muscle and mobility outcomes of a traditional resistance exercise rehabilitation program with a rehabilitation program focused on eccentric resistance exercise. Seventeen individuals (13 women, four men; mean age, 68 years; age range, 55-80 years) with either a unilateral or bilateral TKA (total of 24 knees) were included in this matched and randomized repeated-measures rehabilitation pilot trial. Increases in quadriceps muscle volume and knee extension strength followed 12 weeks of eccentric exercise.

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“…Furthermore, quadriceps strength deficits before TKA are greatly compounded early after the operation and slowly recover to levels only slightly better than the preoperative values [34]. In addition, isometric quadriceps strength has been stated to improve 10 % to 20 % from preoperative levels during at least the first two years following TKA with ordinary living without any exercise intervention (85-95 Nm) [1,35].…”

Section: Discussionmentioning

confidence: 99%

“…Total knee arthroplasty (TKA) is an effective treatment to reduce pain and subjective disability in patients with osteoarthrosis of the knee, but several studies have shown that muscle strength deficiency [1][2][3] and functional limitations may persist for several years after the operation [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Effect of total knee replacement surgery and postoperative 12 month home exercise program on gait parameters

et al. 2017

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Improvement of voluntary quadriceps muscle activation after total knee arthroplasty

Cited by 130 publications

References 40 publications

Moderate varus/valgus malalignment after total knee arthroplasty has little effect on knee function or muscle strength

Moderate varus/valgus malalignment after total knee arthroplasty has little effect on knee function or muscle strength

Reversing Muscle and Mobility Deficits 1 to 4 Years after TKA: A Pilot Study

Effect of total knee replacement surgery and postoperative 12 month home exercise program on gait parameters

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