Results of Hip Arthroplasty Using a COREN Stem at a Minimum of Ten Years.

Purpose: We report on the 10-year clinical hip function and radiologic outcomes of patients who underwent hip arthroplasty using a COREN stem.

Materials And Methods: A consecutive series of 224 primary cementless hip arthroplasty implantations were performed using a COREN stem between 2009 and 2011; among these, evaluation of 128 hips was performed during a minimum follow-up period of 10 years. The mean age of patients was 65.

Palliative arthroscopic debridement with continuous irrigation for infected total knee arthroplasty in high mortality risk patients.

Purpose: This study aimed to evaluate the infection control rate of palliative arthroscopic debridement, antibiotics, and implant retention (DAIR) for the high mortality risk or terminal cancer stage patients.

Methods: From March 2018 to August 2021, 21 patients met the following inclusion criteria: old age of more than 80, diagnosed as a terminal stage of cancer, high risk of mortality and morbidity representing as Charlson comorbidity index (CCI) ≥ 5, low daily activity with disabled extremity, and re-infection after two-stage revision. Each patient underwent arthroscopic DAIR and additional continuous irrigation for 48 hours.

Optimal Release Timing of Drain Clamping to Reduce Postoperative Bleeding after Total Knee Arthroplasty with Intraarticular Injection of Tranexamic Acid.

: Intraarticular injection of tranexamic acid (IA-TXA) plus drain-clamping is a preferred method of reducing bleeding after total knee arthroplasty (TKA). However, no consensus has been reached regarding the timing of the clamping. The purpose of this study was to determine the optimum duration of drain-clamping after TKA with IA-TXA.

Treatment of Vancouver Type B Periprosthetic Femoral Fractures Using Cortical Strut Allografts.

Introduction: The optimal surgical treatment for Vancouver B2 and B3 fractures has not been determined, and bone defects and delays in fracture healing significantly affect treatment outcomes. Some authors have argued that when a serious bone defect is present, the use of cortical strut allografts for the treatment of type B2 and B3 periprosthetic femoral fractures (PFFs) after hip joint replacement may be beneficial. This study aimed to determine the usefulness of cortical strut allografts based on mid-to long-term clinical radiologic results after surgical treatment of Vancouver B-type PFFs.

Effectiveness of continuous femoral nerve block for pain relief after total knee arthroplasty: comparison with epidural patient-controlled analgesia and periarticular injection.

Objective: To compare the clinical outcomes among three analgesic techniques, continuous femoral nerve block (CFNB), epidural patient-controlled analgesia (EPCA) and periarticular injection (PAI), in patients undergoing total knee arthroplasty (TKA).

Methods: This retrospective case-control study enrolled patients that underwent TKA. Visual analogue scale (VAS) pain scores, sleep disturbance, additional opioid consumption and incidence of opioid-related side-effects were assessed.

State of the Art: The Immunomodulatory Role of MSCs for Osteoarthritis.

Osteoarthritis (OA) has generally been introduced as a degenerative disease; however, it has recently been understood as a low-grade chronic inflammatory process that could promote symptoms and accelerate the progression of OA. Current treatment strategies, including corticosteroid injections, have no impact on the OA disease progression. Mesenchymal stem cells (MSCs) based therapy seem to be in the spotlight as a disease-modifying treatment because this strategy provides enlarged anti-inflammatory and chondroprotective effects.

Metallosis after using distal fibular locking plate for lateral malleolar fractures: a retrospective study.

Introduction: Studies regarding the development of metallosis following open reduction and internal fixation (ORIF) of fractures are rarely found in orthopedic literature. The aim of the current study was to assess metallosis following ORIF using distal fibular locking plates to treat distal fibular fractures.

Materials And Methods: 69 patients who underwent surgery using locking compression plates to treat lateral malleolar fractures, with a minimum 1-year follow-up period and subsequent hardware removal were enrolled in our study.

Two Novel Mutations of Gene and Wide Clinical Spectrum in KBG Syndrome: Case Reports and Literature Review.

Background: KBG syndrome (OMIM #148050) is a rare, autosomal dominant inherited genetic disorder caused by heterozygous mutations in the ankyrin repeat domain-containing protein 11 (ANKRD11) gene or by microdeletion of chromosome 16q24.3. It is characterized by macrodontia of the upper central incisors, distinctive facial dysmorphism, short stature, vertebral abnormalities, hand anomaly including clinodactyly, and various degrees of developmental delay.

Plate fixation versus titanium elastic nailing in midshaft clavicle fractures based on fracture classifications.

Background: The best strategy for implant selection in midshaft clavicular fractures (MCF) remains controversial. The present study aims to determine the optimal strategy for implant selection by comparing plate and Titanium Elastic Nail (TEN) with respect to outcomes and related complications and analyze the results based on fracture patterns.

Methods: A total of 97 patients with MCF who underwent plate (48 patients) or TEN (49 patients) fixation were retrospectively reviewed.

Long-term follow-up on MURCS (Müllerian duct, renal, cervical somite dysplasia) association and a review of the literature.

Müllerian duct aplasia-renal aplasia-cervicothoracic somite dysplasia (MURCS) association is a unique development disorder with four common types of malformations that include uterine aplasia or hypoplasia, renal ectopy or agenesis, vertebral anomalies, and short stature. The majority of MURCS patients are diagnosed with primary amenorrhea from late-adolescence. However, a few cases with MURCS association are not well diagnosed during childhood and long-term outcomes are not well reported.

Clinical Characteristics of Methicillin-resistant Staphylococcus aureus Infection for Chronic Periprosthetic Hip and Knee Infection.

Purpose: Deep infection after hip and knee arthroplasty is a serious complication and is difficult to treat due to its toxicity. The aims of our study were to find out the differences of methicillin-resistant Staphylococcus aureus (MRSA) and methicillin-sensitive Staphylococcus aureus (MSSA) infection after hip and knee arthroplasty focusing on clinical course and laboratory findings.

Materials And Methods: We retrospectively reviewed 61 staphylococcal infection cases after hip and knee arthroplasty (MSSA in 25 patients, MRSA in 36 patients).

Incidental findings on knee radiographs in children and adolescents.

Background: Despite the wide use of knee radiography in children and adolescent patients visiting the outpatient clinic, there has been no analysis about the prevalence and type of incidental findings yet. This study was performed to investigate the incidental findings on knee radiographs in children and adolescents according to age.

Methods: A total of 1,562 consecutive patients younger than 18 years of age were included.

Associations between MRI findings and symptoms in patients with chronic ankle sprain.

Magnetic resonance imaging (MRI) provides an accurate method of observing and diagnosing injuries of the ligament complex of the ankle. However, the association between ankle symptoms and MRI findings has been unclear. The purpose of the present study was to evaluate the relationship between ankle pain and MRI findings.

Buddy taping: is it a safe method for treatment of finger and toe injuries?

Background: Buddy taping is a well known and useful method for treating sprains, dislocations, and other injuries of the fingers or toes. However, the authors have often seen complications associated with buddy taping such as necrosis of the skin, infections, loss of fixation, and limited joint motion. To our knowledge, there are no studies regarding the complications of buddy taping.

Preliminary findings of morphometric analysis of ankle joint in Korean population.

The clinical success of ankle joint arthroplasty depends on the availability of information on the morphology of the relevant bones. Thus, the implant design and surgical technique should be adjusted to the ankle morphology. However, few reports have described the characteristics of ankle morphometry in Korean populations.

Modified combined approach for distal humerus shaft fracture: anterolateral and lateral bimodal approach.

Background: Due to the anatomical nature of the radial nerve, dissection and attainment of an adequate operative field in mid to distal humerus fracture is dangerous and limited. We devised a combined anterolateral and lateral approach that ensures protection of the radial nerve. This is achieved by performing bimodal dissection of the proximal humerus anteriorly and the distal humerus laterally.

Incidence patterns of pediatric and adolescent orthopaedic fractures according to age groups and seasons in South Korea: a population-based study.

Background: Fractures which need urgent or emergency treatment are common in children and adolescents. This study investigated the incidence patterns of pediatric and adolescent orthopaedic fractures according to age groups and seasons in South Korea based on population data.

Methods: Data on the number of pediatric and adolescent patients under the age of 18 years who utilized medical services due to fractures were retrieved from the Health Insurance Review and Assessment service in South Korea.

Correlation between stress shielding and clinical outcomes after total hip arthroplasty with extensively porous coated stems.

Relations between stress shielding and the clinical outcomes of total hip arthroplasty(THA) remain topics of debate. This study was performed on 51 patients that underwent unilateral primary THA with an extensively porous coated stem. Contralateral normal femurs were used as controls.

Short-term effects of proximal femoral derotation osteotomy on kinematics in ambulatory patients with spastic diplegia.

The aim of this retrospective study was to determine the short-term effects of proximal femoral derotation osteotomy (FDO) on gait in 53 ambulatory patients with spastic diplegia controlling all confounding procedures. All patients showed a jump gait pattern and had undergone bilateral rectus femoris transfer, distal hamstring lengthening, and tendo-Achilles lengthening as a single-event multilevel surgery. Of these, additional bilateral proximal FDOs were included in 25 patients, defined as the FDO group; the other 28 patients were defined as the no-FDO group.

Clinical results of auto-iliac cancellous bone grafts combined with implantation of autologous bone marrow cells for osteonecrosis of the femoral head: a minimum 5-year follow-up.

Purpose: There are no reports about bone graft and cell therapy for the osteonecrosis of femoral head (ONFH). We prospectively evaluated the clinical results of auto-iliac cancellous bone grafts combined with implantation of autologous bone marrow cells for ONFH.

Materials And Methods: Sixty-one hips in 52 patients with ONFH treated with bone graft and cell therapy were enrolled, and the average follow-up of the patients was 68 (60-88) months.

The natural history of asymptomatic osteonecrosis of the femoral head.

Purpose: To observe the natural history of asymptomatic osteonecrosis of the femoral head, and to analyse the associations between the subsequent development of symptoms, epidemiological risk factors and the character of the lesions.

Methods: Sixty-eight patients were diagnosed with asymptomatic osteonecrosis of the femoral head. The patients were classified based on the development of symptoms.

Revisit of Broden's view for intraarticular calcaneal fracture.

Background: This study was performed to investigate the relationship between coronal computed tomography (CT) and Broden's view in terms of location of the fracture line and fracture pattern.

Methods: Forty-five feet of 45 patients with intraarticular calcaneal fractures were evaluated. The mean age of the patients was 46.

Rasch analysis of the pediatric outcomes data collection instrument in 720 patients with cerebral palsy.

Background: The pediatric outcomes data collection instrument (PODCI) was originally developed to carry out a functional assessment of children and adolescents (including patients with cerebral palsy), focusing on musculoskeletal health. Validated questionnaires are important for assessing the functional outcome of cerebral palsy, and are meant to have unidimensionality, proper item gap, no ceiling and floor effects, and no item redundancy. The advances in health measurements have led to the application of Rasch analysis to assess questionnaires.