Relationship between histological findings of vastus lateralis muscle and function after total hip arthroplasty in patients with hip fracture: a prospective cohort study.

Background And Purpose:  We aimed to examine the histological characteristics of vastus lateralis muscles in patients undergoing total hip arthroplasty (THA) following femoral neck fractures and to explore the correlation between muscle fiber types and postoperative functional recovery.

Methods:  34 patients undergoing THA for femoral neck fractures were included. A biopsy of the vastus lateralis muscle was performed during surgery, followed by immunohistochemical staining.

Effects of body mass index on mortality in elderly patients with hip fractures.

Hip fractures remain a substantial health concern, particularly among elderly individuals with osteoporosis, leading to high global mortality rates. This study aimed to analyze the association between body mass index (BMI) and postoperative mortality in patients who underwent surgery for hip fractures. A total of 680 patients treated at a single institution between January 2018 and December 2022 were included.

Percutaneous screw fixation and external stabilization as definitive surgical intervention for a pelvic ring injury combined with an acetabular fracture in the acute phase of polytrauma in Korea: a case report.

Unstable pelvic ring injuries are potentially life-threatening and associated with high mortality and complication rates in polytrauma patients. The most common cause of death in patients with pelvic ring injuries is massive bleeding. With resuscitation, external fixation can be performed as a temporary stabilization procedure for hemostasis in unstable pelvic fractures.

Risk factors affecting hip fracture patterns in an elderly Korean patient population.

Hip fracture in the elderly patient population, particularly the Korean patient cohort, is one of the most serious complications of osteoporosis and currently increasing alongside age. In this study, we attempted to identify various factors that could either indicate the risk for an intertrochanteric or femoral neck fracture in an osteoporotic Korean hip fracture patient cohort ≥ 65 years old. A retrospective analysis of 168 patients was performed for those who underwent surgical treatment for either an intertrochanteric or femoral neck fracture at Daegu Catholic University Medical Center from January 2013 to December 2015.

Acute respiratory distress syndrome after treating ipsilateral femoral shaft and neck fracture with reamed intramedullary nailing in an asymptomatic COVID-19 patient.

Currently, it is quite difficult to determine the best timeframe of operative treatment, as well as conduct surgery on asymptomatic COVID-19 patients due to misunderstandings and unawareness of the patient's inflammation state. Caution needs to be taken in specific patient cohorts, particularly those with femoral shaft fractures, who are more likely to develop diseases like acute respiratory distress syndrome after a procedure like intramedullary nailing. In this case report, a 36-year-old patient suffered a motorcycle accident in which he suffered an ipsilateral femoral shaft and neck fracture of the hip.

Efficacy of skin preparation solutions in patients with total knee replacement: A randomized controlled trial.

Purpose: Surgical site infection following total knee replacement is considered as one of the most severe postoperative complications. The presence of bacteria at the surgical site is the most important risk factor and therefore it is essential to prevent infection through appropriate preoperative skin preparation. The purpose of this study was to examine the presence and type of native bacteria on the incision site and to assess which skin preparation is most effective to sterilize those native bacteria.

A fatal retroperitoneal bleeding from iliolumbar artery following open reduction and internal fixation of an unstable pelvic ring injury: A case report.

Rationale: Retroperitoneal bleedings are the result of injury to parenchymal tissue or vascular structures within retroperitoneal cavity. This may arise spontaneously, as a result of trauma or iatrogenically. Patients usually do not manifest clinically apparent signs and symptoms until a substantial amount of blood loss has occurred.

Factors affecting the need of postoperative blood transfusion in elderly patients with intertrochanteric hip fracture.

Introduction: We investigated the risk factors that increased the frequency of blood transfusions in elderly patients with intertrochanteric hip fractures to determine blood transfusion risk before surgery and to take selective precautionary measures in the group at high risk for transfusion to ensure safe surgery.

Materials And Methods: We retrospectively reviewed the electronic medical records of 203 patients who underwent surgical fixation of intertrochanteric hip fractures from January 2015 to December 2020. We hypothesized that patient sex, age, body mass index, preoperative hemoglobin, preoperative platelet count, glomerular filtration rate (GFR), preoperative albumin level, American Society of Anesthesiologist score, intraoperative blood loss, duration of surgery, method of anesthesia, and time from injury to surgery would affect the need for blood transfusion.

Prolonged ileus in traumatic pelvic ring injury patients who underwent arterial angio-embolization: A retrospective study.

Paralytic ileus occurs in up to 18% of the patients with pelvic bone fractures. The aim of this study is to determine if massive bleeding requiring arterial angio-embolization is related with the duration of ileus in patients with traumatic pelvic ring injuries. This retrospective study included 25 patients who underwent arterial angio-embolization for traumatic pelvic ring injuries.

A Review of Sarcopenia Pathophysiology, Diagnosis, Treatment and Future Direction.

Sarcopenia is a progressive and generalized loss of skeletal muscle mass and function. The prevalence of sarcopenia was reported to be up to 29% in older persons in the community healthcare setting. Sarcopenia diagnosis is confirmed by the presence of low muscle mass plus low muscle strength or low physical performance.

The natural trends of C-reactive protein after hip arthroplasty for femoral neck fracture without infection.

The aim of this study was to estimate the degree of normalization of C-reactive protein (CRP) at 2-weeks and 4-weeks after hip arthroplasty after femoral neck fracture. We also wished to determine whether the degree of CRP normalization differs after total hip arthroplasty (THA) compared to bipolar hemiarthroplasty (BH). We also wanted to analyze the patient factors that may influence CRP normalization.

Natural course of hemoglobin level after total knee arthroplasty and the benefit of tranexamic acid injection in the joint.

We retrospectively investigated the natural course of hemoglobin (Hb) level after total knee arthroplasty (TKA) and identified the benefit of tranexamic acid injection at the operation field for unilateral TKA patients who have not received blood transfusions.There were 115 cases conducted by a surgeon who performed TKA without injecting tranexamic acid and 62 cases by another surgeon with injection. During 2-weeks of hospitalization, Hb level was checked on the day of surgery and 1, 2, 3, 5, 7, 11 days after surgery.

The advantage of navigation for knee with lateral femoral bowing in total knee arthroplasty.

Purpose: We have analyzed the surgical outcomes of primary total knee arthroplasty (TKA) using computer-assisted (CA) navigation in terms of postoperative coronal alignment depending on preoperative lateral femoral bowing.

Methods: We conducted a retrospective study of patients who have undergone navigated primary TKA from January 2016 through January 2020. Two hundred and ninety-nine cases with lateral femoral bowing of 3° or less were assigned to group 1, 95 cases of lateral femoral bowing between 3° and 5° were assigned to group 2, and 89 cases with lateral femoral bowing of more than 5° were assigned to group 3.

C-reactive protein course after classical complication free total knee arthroplasty using navigation.

Purpose: The purpose is to estimate the degree of normalization of C-reactive protein (CRP) at 2 weeks and 4 weeks after uncomplicated total knee arthroplasty (TKA) using computer navigation. We also wish to determine whether the degree of normalization of CRP at 2 and 4 weeks differs after TKA performed in one knee and after TKA performed sequentially in both knees. We also want to analyze the patient factors that may influence the normalization of CRP.

Appropriateness of the Use of Navigation System in Total Knee Arthroplasty.

Backgroud: The aim of this study was to evaluate the difference between the planned and verified actual values in total knee arthroplasty (TKA) performed using a navigation system.

Methods: Sixty patients who underwent primary TKA for knee pain from March 2018 to July 2018 were included in this study. All patients underwent TKA using the latest version of a computer navigation system (Kick ver.

IgG Seroprevalence of COVID-19 among Individuals without a History of the Coronavirus Disease Infection in Daegu, Korea.

Background: Seroprevalence studies of coronavirus disease 2019 (COVID-19) from many countries have shown that the number of undiagnosed missing cases is much larger than that of confirmed cases, irrespective of seroprevalence levels. Considering the strategy of Korea entailing massive testing and contact tracing from the beginning of epidemic, the number of undiagnosed missing cases in Korea may be negligible. This study was conducted to estimate the seroprevalence of COVID-19 among individuals who were never diagnosed with COVID-19 in Daegu, the epicenter of COVID-19 epidemic in Korea.

Changes of acetabular anteversion according to pelvic tilt on sagittal plane under various acetabular inclinations.

Improper functional orientation of the acetabular cup can result in improper positions when dynamic pelvic positions are not considered. The purpose of this study was to evaluate changes on acetabular anteversion according to pelvic tilt under various acetabular inclinations. Two artificial pelvic models were selected for this study.

Sleep Disturbance Strongly Related to the Development of Postoperative Delirium in Proximal Femoral Fracture Patients Aged 60 or Older.

Purpose: Post-fracture sleeping disorders can lead to a deterioration of mental and physical health and delay recovery to pre-fracture status. Here, an analysis was conducted to determine if sleep disturbance is a risk factor for delirium in patients older than 60 years of age with surgically treated proximal femoral fractures.

Materials And Methods: This retrospective study included 316 patients with surgically treated proximal femoral fractures between January 2014 and December 2016; 33 patients were removed from analysis due to exclusion criteria.

Embolization for intractable spontaneous hemarthrosis of the knee joint in the elderly patient: Case report.

Rationale: Several case reports about the diagnostic and therapeutic approaches of hemarthrosis after total knee arthroplasty using angiogram have been reported, owing to the probability of bleeding caused by vascular injuries. However, there were only few cases of spontaneous hemarthrosis of the knee joint in the elderly patient that have not undergone total knee arthroplasty that have been previously reported.

Patients Concerns: An 82-year-old male presented to our outpatient department with acute left knee pain.

Acquisition of coronal alignment according to the degree of varus deformity in total knee arthroplasty using computer-assisted navigation.

Purpose: We have analyzed the surgical outcomes of primary total knee arthroplasty (TKA) using computer-assisted navigation that were performed by a single surgeon in terms of postoperative coronal alignment depending on preoperative varus deformity.

Methods: We conducted a retrospective study of patients who have undergone navigated primary TKA from January 2016 through December 2019. Two hundred and fifty-six cases with varus deformity of 10° or less were assigned to group 1, and 216 cases with varus deformity of more than 10° were assigned to group 2.

Advantages of the experience of navigation when starting manual total knee arthroplasty.

Purpose: To evaluate how the accuracy of coronal-plane bone cutting and operative time may be affected by the experience of navigated total knee replacement (TKR) in starters of manual TKR.

Methods: We analyzed 30 cases of navigated TKR performed in the early years (group 1), 30 consecutive cases of navigated TKR performed after experiencing more than 100 cases of navigated TKR (group 2), and the initial 30 consecutive cases of manual TKR (group 3). Postoperative mechanical hip-knee-ankle (mHKA) angle, mechanical medial proximal tibial angle (mMPTA), and mechanical lateral distal femoral angle (mLDFA) were measured.