Constitutional varus knee due to tibial deformity is common and represents a good indication for high tibial osteotomy in Japanese population: Consideration of 1010 knees.

Purpose: This study aimed to elucidate the characteristics of varus knee deformities in the Japanese population, prevalence of various around knee osteotomy procedures and influence of femoral and tibial bowing.

Methods: Varus knee deformity was defined as a weight-bearing line ratio of <50%. A total of 1010 varus knees were selected from 1814 varus knees with weight-bearing full-length radiographs, obtained at two facilities, based on exclusion criteria.

Ten-Year Clinical Outcomes of Endoscope-Assisted Minimally Invasive Surgical Decompression for Lumbar Spinal Stenosis with Degenerative Spondylolisthesis and Comparison with Conservative Treatment.

Introduction: This study aimed to evaluate the 10-year clinical outcomes of endoscope-assisted, minimally invasive surgical (MIS) decompression for lumbar spinal canal stenosis (LSS) with lumbar degenerative spondylolisthesis (DS) and to compare the radiographic changes in patients who underwent this procedure with those who underwent conservative therapy at 10-year follow-up.

Methods: Between April 2007 and April 2010, 347 consecutive patients with DS and evidence of LSS underwent conservative treatment first from 2 to 4 weeks. The 114 patients who failed conservative treatment were then treated surgically by endoscope-assisted MIS decompression.

Patellofemoral Osteoarthritis Progression After Open-Wedge High Tibial Osteotomy Does Not Affect the Clinical Outcomes or Survivorship at Minimum 7 Years' Follow-Up.

Purpose: To evaluate the clinical and radiologic outcomes of open-wedge high tibial osteotomy (OWHTO) with respect to the patellofemoral joint and to assess the effects of patellofemoral osteoarthritis (OA) progression after OWHTO on clinical outcomes at minimum 7 years' follow-up.

Methods: We retrospectively reviewed 95 knees that underwent OWHTO and at least 7 years of follow-up. Clinical parameters including anterior knee pain, Japanese Orthopedic Association score, Oxford Knee Score, Knee Injury and Osteoarthritis Outcome Score, Hospital for Special Surgery patella score, and Knee Injury and Osteoarthritis Outcome Score-patellofemoral subscale were evaluated.

Low-intensity pulsed ultrasound does not promote bone healing and functional recovery after open wedge high tibial osteotomy.

Aims: To evaluate whether low-intensity pulsed ultrasound (LIPUS) accelerates bone healing at osteotomy sites and promotes functional recovery after open-wedge high tibial osteotomy (OWHTO).

Methods: Overall, 90 patients who underwent OWHTO without bone grafting were enrolled in this nonrandomized retrospective study, and 45 patients treated with LIPUS were compared with 45 patients without LIPUS treatment in terms of bone healing and functional recovery postoperatively. Clinical evaluations, including the pain visual analogue scale (VAS) and Japanese Orthopaedic Association (JOA) score, were performed preoperatively as well as six weeks and three, six, and 12 months postoperatively.

Postoperative Urinary Retention in Japanese Elderly Males with a Femoral Neck or Trochanteric Fracture.

We assessed risk factors for postoperative urinary retention (UR) in elderly males with femoral bone fractures: 169 Japanese males (mean age 81.95 ± 1.19 years) who had undergone hip surgery at a municipal hospital (Toyama, Japan).

Editorial Commentary: Early Postoperative Knee Joint Space Width Change Is Attributable to Change in the Joint Line Convergence Angle After High Tibial Osteotomy and May Not Reflect Cartilage Regeneration.

Realignment of the weightbearing axis by high tibial osteotomy (HTO) can alter the forces acting on the articular cartilage within the knee, reducing the load on the medial compartment. This unloading effect is thought to allow the repair of the articular cartilage of the affected compartment. It is important to evaluate the serial changes of joint space width (JSW) after HTO for assessing the state of the cartilage and the unloading effect by HTO.

Influence of lateral hinge fractures on biplanar medial closing-wedge distal femoral osteotomy for valgus knee: a new classification of lateral hinge fracture.

Background: The purpose of this study was to examine the influence of lateral hinge fractures in medial closing-wedge distal femoral osteotomy (MCWDFO) on bone union.

Methods: Twenty-one patients were followed-up for more than 1 year after MCWDFO. The incidence and type of hinge fracture, as well as the course of bone healing, were investigated.

Multidisciplinary care model for geriatric patients with hip fracture in Japan: 5-year experience.

Introduction: Japan is a super-aging society, the geriatric care system establishment for hip fractures is at an urgent task. This report described our concept of multidisciplinary care model for geriatric hip fractures and 5-year outcomes at the Toyama City Hospital, Japan.

Methods: In this retrospective cohort study, a multidisciplinary treatment approach was applied for elderly patients with hip fracture since 2014.

Change in leg length after open-wedge high tibial osteotomy can be predicted from the opening width: A three-dimensional analysis.

Background: The purpose of this study was to evaluate true change in leg length after open-wedge high tibial osteotomy (OWHTO) using three-dimensional (3D) assessments, examine the factors that influence leg lengthening and verify their validity in clinical practice.

Methods: Study 1: a retrospective case series simulation study, included 46 patients (55 knees) that underwent knee arthroplasty or HTO. OWHTO was simulated from preoperative computed tomography using 3D preoperative planning software.

Factors Associated With Patient Satisfaction After Opening-Wedge High Tibial Osteotomy.

Background: Opening-wedge high tibial osteotomy (OWHTO) is expected to result in higher patient satisfaction compared with knee arthroplasty due to joint preservation. However, patient satisfaction rates as well as factors associated with satisfaction after OWHTO remain unclear.

Purpose: To evaluate patient subjective satisfaction after OWHTO and determine factors associated with patient satisfaction after OWHTO.

Mortality and the Risk Factors in Elderly Female Patients With Femoral Neck and Trochanteric Fractures.

Background: The main purpose of this study is to exhaustively explore risk factors, including age, gender, and several clinical indices, for mortality in elderly patients with femoral neck fracture and to evaluate some of them using survival analyses.

Methods: This was a retrospective study tracking 1 year for vital prognosis. Data were collected at post-operation from medical records of the cases.

Open-wedge high tibial osteotomy for spontaneous osteonecrosis of the medial tibial plateau shows excellent clinical outcomes.

PurposeThere have been few reports on medial tibial plateau osteonecrosis, and treatment options remain controversial. This study aimed to evaluate the clinical outcomes of open-wedge high tibial osteotomy (OWHTO) for osteonecrosis of the medal tibial plateau.MethodsPatients who underwent OWHTO for spontaneous osteonecrosis of the medial tibial plateau from November 2013 to September 2017 at our institution and followed up for at least 2 years after surgery were included in this study.

Risk factors for the development of aspiration pneumonia in elderly patients with femoral neck and trochanteric fractures: A retrospective study of a patient cohort.

Aspiration pneumonia (AP) has been recognized as one of the most common postoperative complications after hip surgery in elderly. The objective of the present study was to evaluate risk for postoperative complications of AP in elderly patients with femoral neck fractures.We recruited 426 patients (age 84.

Comparison of Clinical and Radiologic Outcomes Between Normal and Overcorrected Medial Proximal Tibial Angle Groups After Open-Wedge High Tibial Osteotomy.

Purpose: To evaluate whether the overcorrected medial proximal tibial angle (MPTA) affects the clinical outcomes after open-wedge high tibial osteotomy (OWHTO) and to assess the correlation between knee joint line obliquity (KJLO) changes and the compensatory changes in the hip and ankle joints.

Methods: Consecutive patients who underwent OWHTO from July 2006 to August 2015 were included. Exclusion criteria were bilateral OWHTO and follow-up of <2 years.

Treatment of a sacral fracture associated with an intrasacral meningocele: A case report.

We report a case of sacral fracture complicated by an intrasacral meningocele in a 37-year-old male. The patient had a left sacral fracture with bilateral fractures of the superior and inferior pubic rami. The sacrum was fixed with a posterior plate and both superior pubic rami were fixed with an intramedullary screw.

Plate removal without loss of correction after open-wedge high tibial osteotomy is possible when posterior cortex bone union reaches osteotomy gap center even in incompletely filled gaps.

Purpose: The study aimed to evaluate the optimal timing for plate removal after open-wedge high tibial osteotomy (OWHTO) without loss of correction and to investigate risk factors for loss of correction after plate removal. The study presents the hypothesis that plate removal without loss of correction was possible when gap filling reached zone 2 (25-50%) on anteroposterior radiographs.

Methods: Ninety-one patients (101 knees) who underwent OWHTO using the TomoFix plate were enrolled.

Urinary retention as a postoperative complication associated with functional decline in elderly female patients with femoral neck and trochanteric fractures: A retrospective study of a patient cohort.

Urinary retention (UR) has been recognized as one of the most common postoperative complications after hip surgery in elderly. The objective of the present study was to evaluate risk for postoperative complications of UR in elderly female patients with femoral neck fractures.We recruited 221 female patients (age 85.

Editorial Commentary: Does Patellofemoral Degenerative Progression After Open-Wedge High Tibial Osteotomy Adversely Affect Clinical Outcomes?

Open-wedge high tibial osteotomy causes deterioration of the patellofemoral cartilage status. However, whether patellofemoral degenerative progression adversely affects clinical outcomes remains unclear, thereby necessitating a comprehensive long-term follow-up study.

Long-term clinical results of the crosse de hockey procedure for recurrent patellar dislocation.

Background: A gold standard procedure has not been established for recurrent patellar dislocation because of multifactorial etiologies. We have been performing crosse de hockey procedure, which is a combination of medial and anterior transfer of the tibial tuberosity, in our institution since 1993. This study aimed to investigate the long-term clinical results of this procedure.

The influence of pre-operative antiplatelet and anticoagulant agents on the outcomes in elderly patients undergoing early surgery for hip fracture.

Background: Early surgery improves the prognosis of elderly patients with hip fractures. However, many patients take antiplatelet and anticoagulant therapies for comorbidities. This study compared perioperative outcomes and 1-year mortality rates with early surgery in elderly patients with hip fractures taking or not taking these agents preoperatively.

Assessment of unloading effects after open wedge high tibial osteotomy using quantitative bone scintigraphy.

Introduction: We evaluated changes in bone tracer uptake (BTU) in open wedge high tibial osteotomy (OWHTO) and determined if BTU correlates with clinical symptoms, postoperative alignment, or cartilage regeneration after OWHTO.

Materials And Methods: Seventy-five knees in 64 patients who underwent OWHTO for medial compartment osteoarthritis were enrolled in this retrospective study. All cases were assessed preoperatively and at plate removal using bone scintigraphy.

Large opening gaps, unstable hinge fractures, and osteotomy line below the safe zone cause delayed bone healing after open-wedge high tibial osteotomy.

Purpose: To evaluate bone formation in the osteotomy gap after open-wedge high tibial osteotomy (OWHTO), including after plate removal, and to investigate risk factors for delayed bone healing.

Methods: Ninety-three patients (102 knees) who underwent OWHTO without bone grafting were enrolled. The osteotomy gap was divided into the lateral hinge and the four zones on anteroposterior radiographs, and we defined the zone in which trabecular bone continuity could be observed as gap filling.

The effect of a multidisciplinary approach on geriatric hip fractures in Japan.

Background: This study aimed to report results of the multidisciplinary treatment approach for geriatric hip fractures and evaluate its effectiveness compared with conventional treatment. Patients aged 65 years and older who presented with a hip fracture at our hospital on or after 2014 were treated according to a multidisciplinary approach.

Method: Two groups of patients with hip fracture were compared.