Motohiro Wakui

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Superolateral acetabular bone defect is a serious challenge in uncemented total hip arthroplasty for acetabular dysplasia. We report a bulk bone autografting technique without decortication of the acetabulum and femoral head contact surfaces in 22 joints. Mean follow-up time was 8.3 years, and survival rates were 100% for loosening and revision end points.(More)
BACKGROUND Periarticular injection is becoming more commonly utilized for pain relief following total knee arthroplasty. However, we are aware of no randomized controlled trial that has investigated the efficacy of periarticular injection for pain relief after simultaneous bilateral total knee arthroplasty. METHODS We performed a randomized controlled(More)
BACKGROUND Although epidural analgesia has been used for postoperative pain control after total knee arthroplasty, its usefulness is being reevaluated because of possible adverse effects. Recent studies have proven the efficacy of periarticular analgesic injection and its low prevalence of adverse effects. The present study compares the clinical efficacies(More)
BACKGROUND Minimally invasive surgery (MIS) can lead to early recovery, but its postoperative effect is short after total hip arthroplasty for osteoarthritis. Because bipolar hemiarthroplasty (BHA) for femoral neck fractures is preferred for elderly patients, early functional recovery may prevent the rapid progression of disuse atrophy, and an MIS surgical(More)
The ceramic-on-ceramic (CoC)-bearing couple in total hip arthroplasty (THA) was developed to reduce the wear debris and osteolysis. Although the mechanical strength of third-generation ceramic has improved over previous generations, the risk of osteolysis and ceramic fracture is still an important concern. We studied 124 uncemented THAs with(More)
OBJECTIVE The aim of the study was to compare the dislocation rate between total hip arthroplasty (THA) via direct anterior approach (DAA) and via posterior approach (PA). METHODS We compared a consecutive series of 139 THAs via DAA with 177 THAs via PA. All study patients received ceramic-on-ceramic bearing surfaces and similar uncemented prostheses.(More)
BACKGROUND Optimal acetabular cup position is an important determinant of the success of total hip arthroplasty (THA), and navigation systems have been developed and applied to improve placement precision. However, the registration method touching bony landmarks through soft tissues may decrease the accuracy in obese cases and in patients with acetabular(More)
This study was performed to determine whether the overcorrected knee could obtain a higher ratio of articular cartilage repair in the medial compartment of the femorotibial joint after open-wedge high tibial osteotomy (HTO). The hypothesis of the study was that overcorrected knees had a higher ratio of articular cartilage repair than moderately corrected(More)
BACKGROUND Stable and well-aligned placement of tibial components during primary total knee arthroplasty is challenging in patients with bone defects. Although rectangular block-shaped augmentations are widely used to reduce the shearing force between the tibial tray and bone compared with wedge-shaped augmentations, the clinical result remains unclear.(More)
BACKGROUND Fixed angle sliding hip screw devices allow controlled impaction between the head neck fragment and the femoral shaft fragment in the surgical treatment of pertrochanteric fractures. This study was performed to evaluate the frequency and pattern of comminution at the fracture site, which may prevent the intended impaction. MATERIALS AND METHODS(More)