Postural and Chronological Change in Pelvic Tilt Five Years After Total Hip Arthroplasty in Patients With Developmental Dysplasia of the Hip: A Three-Dimensional Analysis

Suzuki, Hideharu; Inaba, Yutaka; Kobayashi, Naomi; Ishida, Takashi; Ike, Hiroyuki; Saito, T.

doi:10.1016/j.arth.2015.07.026

Cited by 37 publications

(58 citation statements)

References 23 publications

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“…As can be seen from Figure 7, the mean values for the pelvic tilt angle in the standing and supine positions were in good agreement with the prior research. [13][14][15][16][17][18][19][20][21][22] The discrepancy in the mean pelvic tilt angle for the sitting position could be attributed to the difficult access to the pubic bone in overweight patients. It can be also seen that the results obtained in this study are more disperse than those in the other studies, which is reflected by the high standard deviation and large difference between the extreme measured values.…”

Section: Discussionmentioning

confidence: 99%

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Application of Navigated Ultrasound for Assessment of the Anterior Pelvic Plane in Patients With Degenerative Hip Diseases

Kochman¹,

Goral

Martín³

et al. 2017

J Ultrasound Med

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Section: Discussionmentioning

confidence: 99%

“…Therefore, it is a practical tool that can be easily integrated into the work flow of navigated THR and contribute to more precise, patient-specific positioning of the acetabular component. 22 In some works, [16][17][18]21 the minimum and maximum values were not reported. In another work, 14 the standard deviation was not reported.…”

Section: Discussionmentioning

confidence: 99%

Application of Navigated Ultrasound for Assessment of the Anterior Pelvic Plane in Patients With Degenerative Hip Diseases

Kochman¹,

Goral

Martín³

et al. 2017

J Ultrasound Med

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“…The mobility and deformity of spine influence on the change in sagittal pelvic tilt between supine, sitting and standing positions1011). Ranawat et al10) concluded in their study that there was a significant change in sagittal pelvic tilt from standing to sitting, especially in patients with a flexible spine, in which the functional anteversion increases with sitting.…”

Section: Specific Considerations For Computer-assisted Thamentioning

confidence: 99%

“…Generally, pelvic posterior tilt increases when people become old because of the loss of lumbar lordosis, flexion contracture of the knee, and weakness of the back muscle and others14). Suzuki et al11) described that in older patients with a small preoperative lumbar lordotic angle, the reference pelvic plane should be set more posteriorly than the pelvic plane in the preoperative supine position, and cup anteversion should be reduced by several degrees in order to account for posterior changes in pelvic tilt that will occur after THA. When planning THA for patients with spine deformity and stiffness, preoperative consideration of the posterior change in pelvic tilt after THA should be considered in order to prevent postoperative complications including implant impingement.…”

Section: Specific Considerations For Computer-assisted Thamentioning

confidence: 99%

“…Researches regarding pelvic tilt and FPP by Miki et al68) and Suzuki et al11) showed the efficacy of the FPP using CT-based navigation in THA. Nishihara et al9) reported that the individual sagittal angle of APP is not always flat in a neutral (zero) position of the hip and it can be affected by an individual's shape, aging, or spinal deformity due to osteoporosis.…”

Section: Recent Evolution In Caos For Thamentioning

confidence: 99%

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The Evolution of Computer-Assisted Total Hip Arthroplasty and Relevant Applications

et al. 2017

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In total hip arthroplasty (THA), the accurate positioning of implants is the key to achieve a good clinical outcome. Computer-assisted orthopaedic surgery (CAOS) has been developed for more accurate positioning of implants during the THA. There are passive, semi-active, and active systems in CAOS for THA. Navigation is a passive system that only provides information and guidance to the surgeon. There are 3 types of navigation: imageless navigation, computed tomography (CT)-based navigation, and fluoroscopy-based navigation. In imageless navigation system, a new method of registration without the need to register the anterior pelvic plane was introduced. CT-based navigation can be efficiently used for pelvic plane reference, the functional pelvic plane in supine which adjusts anterior pelvic plane sagittal tilt for targeting the cup orientation. Robot-assisted system can be either active or semi-active. The active robotic system performs the preparation for implant positioning as programmed preoperatively. It has been used for only femoral implant cavity preparation. Recently, program for cup positioning was additionally developed. Alternatively, for ease of surgeon acceptance, semi-active robot systems are developed. It was initially applied only for cup positioning. However, with the development of enhanced femoral workflows, this system can now be used to position both cup and stem. Though there have been substantial advancements in computer-assisted THA, its use can still be controversial at present due to the steep learning curve, intraoperative technical issues, high cost and etc. However, in the future, CAOS will certainly enable the surgeon to operate more accurately and lead to improved outcomes in THA as the technology continues to evolve rapidly.

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Implications of the uncertainty of postoperative functional parameters for the preoperative planning of total hip arthroplasty

Fischer

Tokunaga

Okamoto

et al. 2022

Journal Orthopaedic Research

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The functional parameters pelvic tilt (PT) and hip joint force (HJF) are required to calculate patient‐specific target zones based on the range of motion (ROM) and implant loading for preoperative planning of total hip arthroplasty (THA). Both functional parameters may change after THA. The preoperative prediction of the postoperative PT and HJF is associated with a specific amount of uncertainty. The prediction uncertainty has to be considered in the preoperative planning process to avoid a suboptimal implantation. So far, very little attention has been paid to the necessary reduction of patient‐specific target zones by the prediction uncertainties of postoperative functional parameters. Prediction models for the postoperative PT in standing position and for the HJF during one‐leg stance as a surrogate for the peak force phase during level walking were used to quantify the reduction of the ROM‐ and load‐based target zones of 196 Japanese THA patients. The prediction uncertainty was about 14° for the postoperative standing PT and ranged from 17% body weight to 37% body weight for the components of the HJF. On average, the prosthetic ROM‐based target zone had to be significantly reduced by 43% and the load‐based target zone by 39%. This led to a median reduction of the combined prosthetic ROM‐ and load‐based target zone of 96%. The study sharpens the awareness for the substantial reduction of ROM‐ and load‐based target zones by prediction uncertainties of the postoperative PT and HJF and highlights the importance of further research to improve prediction models for both functional parameters.

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Postural and Chronological Change in Pelvic Tilt Five Years After Total Hip Arthroplasty in Patients With Developmental Dysplasia of the Hip: A Three-Dimensional Analysis

Cited by 37 publications

References 23 publications

Application of Navigated Ultrasound for Assessment of the Anterior Pelvic Plane in Patients With Degenerative Hip Diseases

Application of Navigated Ultrasound for Assessment of the Anterior Pelvic Plane in Patients With Degenerative Hip Diseases

The Evolution of Computer-Assisted Total Hip Arthroplasty and Relevant Applications

Implications of the uncertainty of postoperative functional parameters for the preoperative planning of total hip arthroplasty

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