Alteration of Hindfoot Alignment After Total Knee Arthroplasty Using a Novel Hindfoot Alignment View

Hara, Yusuke; Ikoma, Kazuya; Ohashi, Suzuyo; Maki, Masahiro; Kubo, Toshikazu

doi:10.1016/j.arth.2014.07.026

Cited by 42 publications

(57 citation statements)

References 13 publications

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“…This discrepancy is possibly attributed to a reduced compensatory capacity of the ankle/subtalar joint complex or a restricted range of motion in subtalar pronation. Hindfoot varus deformity exists in 30% of cases of end-stage varus knee OA, [21, 55] and hindfoot varus is believed to occur as a result of the loss of this compensatory capacity of the hindfoot. A prospective study to follow-up on the foot posture in patients with knee OA who had varus alignment would help address this question.…”

Section: Discussionmentioning

confidence: 99%

“…A simulated genu varum walking pattern increases the subtalar pronation moment, whereas a simulated genu valgum walking pattern increases the subtalar supination moment [18]. Furthermore, accumulated evidence shows that realignment of the knee following TKA results in changes in hindfoot alignment [19–21] and foot kinematics during gait [22]. Although this evidence suggests the existence of a biomechanical link between altered frontal plane knee alignment and altered foot posture in patients with knee OA, we are unaware of any studies that have investigated the direct relationship of frontal plane knee alignment and foot posture, including forefoot, midfoot, and rearfoot postures, within this population.…”

Section: Introductionmentioning

confidence: 99%

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Association of frontal plane knee alignment with foot posture in patients with medial knee osteoarthritis

Ohi

Iijima

Aoyama

et al. 2017

BMC Musculoskelet Disord

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BackgroundTo examine the association of radiographic frontal plane knee alignment with three-dimensional foot posture in patients with medial knee osteoarthritis (OA).MethodsParticipants in orthopedic clinics with Kellgren/Lawrence (K/L) grade ≥1 (88 patients and 88 knees; age, 61–91 years; 65.9% female) were enrolled. An anteroposterior radiographic view was used to assess the anatomical axis angle (AAA) after subtracting a sex-specific correction factor. The three-dimensional foot posture was also evaluated.ResultsMultiple regression analyses showed that increased corrected AAA (i.e., valgus direction) was independently associated with a decrease in the hallux valgus angle (regression coefficient: −0.40 per degree, 95% confidence interval [CI]: −0.72, −0.09; P = 0.013) and increase in the pronation angle of the calcaneus relative to floor (regression coefficient: 0.33 per degree, 95% CI: 0.10, 0.56; P = 0.005) adjusted for age, sex, and body mass index. The relationship between the corrected AAA and hallux valgus angle strengthened (regression coefficient: −0.60 per degree, 95% CI: −1.08, −0.13; P = 0.014) in varus-aligned knees examined separately (63 knees). The other foot postures (navicular height, navicular height/foot length, and rearfoot angle) were not significantly associated with corrected AAA.ConclusionsRadiographic frontal plane knee alignment was associated with hallux valgus angle and calcaneus angle relative to the floor in patients with medial knee OA, particularly in varus-aligned knees. These results indicate a connection between altered frontal knee alignment and foot posture, which may be helpful in understanding the pathogenesis of altered foot posture observed in patients with knee OA.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Association of frontal plane knee alignment with foot posture in patients with medial knee osteoarthritis

Ohi

Iijima

Aoyama

et al. 2017

BMC Musculoskelet Disord

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“…In patients with osteoarthritis, the varus alignment in the knee joint is associated with the valgus alignment in the rare foot and the valgus alignment in the knee joint is associated with the varus alignment in the rare foot (16,17). The deformity in the rear foot has been reported to be improved following TKA surgery in some studies (9,10,16,18). However, there are very few studies evaluating the changes occurring in the pressure and strength of the sole following TKA (19).…”

Section: Discussionmentioning

confidence: 99%

Total Diz Artroplastisi Sonrası Erken Dönemde Plantar Basınç Dağılımı Nasıl Değişir? Pilot Çalışma

Arık

Aras

Akkan

et al. 2018

Osmangazi̇ Journal of Medicine

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To evaluate how the static and dynamic plantar overload distribution patterns change following total knee arthroplasty (TKA) surgery using a pressure platform. Ten patients who met the inclusion criteria were included (mean age 68.5±7.9 years). Evaluations were performed prior to the surgery and on the 15th day after the surgery. Static balance parameters (anterior-posterior and total load distribution of the foot, ratio of weight bearing of the right and left foot, elliptic area of the pressure center and oscillation speed) were measured and recorded by Zebris™ FDM-2 (Zebris® Medical GmbH, Germany) device. Maximum strength produced in the posterior foot during walking, time percent of the walking cycle produced by this strength and middle foot maximum pressure values were found to be significantly decreased (p<0,05). Rotation degrees of the foot were found to be decreased in the patients, though not statistically significant. No significant differences were found in the total weight load on the foot, elliptic area, center of pressure (COP), line length and mean COP rate during static standing between the pre-surgical and postsurgical measurement results (p>0,05). Weight load measurement values on the forefoot of the opere side during standing were found to be significantly increased following surgery, while the weight load on the rear foot was found to be significantly decreased (p<0,05). The weight load on the rear foot and forefoot upon static stance was decreased and increased, respectively 15 days after the surgery in patients who underwent TKA surgery. The evaluations using force platform before and after surgery may be useful for orthopedic surgeons because TKA surgery used to correct knee alignment also affect loading parameters in early period.

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“…Several authors also investigated the hindfoot alignment in patients with knee osteoarthritis. 66 - 69 Interestingly, patients with valgus knee osteoarthritis tend to a varus hindfoot alignment and vice versa . 68 …”

Section: Impact Of the Subtalar Joint On Ankle Joint Osteoarthritismentioning

confidence: 99%

The subtalar joint

et al. 2017

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Subtalar joint anatomy is complex and can vary significantly between individuals.Movement is affected by several adjacent joints, ligaments and periarticular tendons.The subtalar joint has gained interest from foot and ankle surgeons in recent years, but its importance in hindfoot disorders is still under debate.The purpose of this article is to give a general overview of the anatomy, biomechanics and radiographic assessment of the subtalar joint.The influence of the subtalar joint on the evolution of ankle joint osteoarthritis is additionally discussed.Cite this article: EFORT Open Rev 2017;2:309-316. DOI: 10.1302/2058-5241.2.160050

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Alteration of Hindfoot Alignment After Total Knee Arthroplasty Using a Novel Hindfoot Alignment View

Cited by 42 publications

References 13 publications

Association of frontal plane knee alignment with foot posture in patients with medial knee osteoarthritis

Association of frontal plane knee alignment with foot posture in patients with medial knee osteoarthritis

Total Diz Artroplastisi Sonrası Erken Dönemde Plantar Basınç Dağılımı Nasıl Değişir? Pilot Çalışma

The subtalar joint

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