Does COVID-19 Infection within 1 Week after Total Knee Arthroplasty Affect Patients' Early Clinical Outcomes? A Matched Case-Control Study.

Recent studies have reported the impact of previous COVID-19 infection on the early clinical outcome after total knee arthroplasty (TKA). However, the timing of infection before the surgery was not constant and a study on patients with COVID-19 infection within 1 week after TKA is lacking. This study aimed to determine the effect of COVID-19 infection within one week after TKA on the postoperative outcomes and to compare the early clinical outcomes to those who were not infected with COVID-19 before and after surgery.

Local Infiltration Analgesia Versus Femoral Nerve Block for Pain Control in Anterior Cruciate Ligament Reconstruction: A Systematic Review With Meta-analysis.

Background: Anterior cruciate ligament reconstruction (ACLR) is often performed on an outpatient basis; thus, effective pain management is essential to improving patient satisfaction and function. Local infiltration analgesia (LIA) and femoral nerve block (FNB) have been commonly used for pain management in ACLR. However, the comparative efficacy and safety between the 2 techniques remains a topic of controversy.

Mini-Open Anterior Lumbar Interbody Fusion Combined with Lateral Lumbar Interbody Fusion in Corrective Surgery for Adult Spinal Deformity.

Study Design: Prospective observational study.

Purpose: To introduce the techniques and present the surgical outcomes of mini-open anterior lumbar interbody fusion (ALIF) at the most caudal segments of the spine combined with lateral lumbar interbody fusion (LLIF) for the correction of adult spinal deformity.

Overview Of Literature: Although LLIF is increasingly used to correct adult spinal deformity, the correction of sagittal plane deformity with LLIF alone is reportedly suboptimal.

Incidence of microbiological contamination of local bone autograft used in posterior lumbar interbody fusion and its association with postoperative spinal infection.

Objective: The aim of this study was to examine the results of microbiological cultures from local bone autografts used in posterior lumbar interbody fusion (PLIF) and to identify their association with postoperative spinal infection.

Methods: The authors retrospectively evaluated cases involving 328 patients who had no previous spinal surgeries and underwent PLIF for degenerative diseases with a minimum 1-year follow-up. Local bone was obtained during laminectomy, and microbiological culture was performed immediately prior to bone grafting.

The Early Result of Cementless Arthroplasty for Femur Neck Fracture in Elderly Patients with Severe Osteoporosis.

Purpose: The purposes of the current study were to assess the early results of cementless hip arthroplasty (HA) for femoral neck fractures in elderly patients with severe osteoporosis and to compare the clinical outcomes between those who underwent total HA (THA) or bipolar hemiarthroplasty (BHA).

Materials And Methods: From April 2011 to May 2012, we performed 87 cementless HAs for displaced femoral neck fractures in elderly patients (≥65 years) with severe osteoporosis. Among them, we studied 70 hips that were able to be followed-up for >24 months.

Simple prediction method of lumbar lordosis for planning of lumbar corrective surgery: radiological analysis in a Korean population.

Purpose: This study aimed at deriving a lordosis predictive equation using the pelvic incidence and to establish a simple prediction method of lumbar lordosis for planning lumbar corrective surgery in Asians.

Methods: Eighty-six asymptomatic volunteers were enrolled in the study. The maximal lumbar lordosis (MLL), lower lumbar lordosis (LLL), pelvic incidence (PI), and sacral slope (SS) were measured.

A Broken Drill-bit Fragment Causing Severe Radiating Pain after Cervical Total Disc Replacement: A Case Report.

This is a case report of a 38-year-old man with severe radiating pain on upper extremity after cervical total disc replacement (TDR). We faced an unusual complication that has not been reported yet. He underwent cervical TDR for left central disc protrusion on C5-6.

Normal patterns of sagittal alignment of the spine in young adults radiological analysis in a Korean population.

Study Design: Radiological analysis and classification of normal patterns of sagittal alignment of the spine.

Objective: To classify the patterns of sagittal alignment of the spine in young asymptomatic adults and analyze the differences in the various spinal and pelvic parameters according to these patterns.

Summary Of Background Data: Previous studies reported that the overall sagittal pattern and balance were more important than the normative values.

Postoperative changes in pelvic parameters and sagittal balance in adult isthmic spondylolisthesis.

Background: Correction of deformity in adult isthmic spondylolisthesis can affect the pelvic parameters and sagittal balance.

Objective: To evaluate the correlation with the amount of deformity correction and the subsequent change in pelvic parameters after surgical correction of adult isthmic spondylolisthesis and to determine which deformity parameter most affects the postoperative restoration of spinopelvic sagittal alignment.

Methods: Fifty-eight patients with 1-level isthmic spondylolisthesis were included.

Changes of upper thoracic curve and shoulder balance in thoracic adolescent idiopathic scoliosis treated by anterior selective thoracic fusion using VATS.

Study Design: A retrospective radiographic analysis.

Objectives: To evaluate changes of upper thoracic curve and shoulder balance in thoracic adolescent idiopathic scoliosis patients treated by anterior selective thoracic fusion using video-assisted thoracoscopic surgery and to identify adequacy of earlier criteria of double thoracic (DT) curve for anterior correction.

Summary Of Background Data: Although anterior and posterior scoliosis correction show many differences in correction mechanisms, fusion levels, loss of correction etc.

Heterotopic ossification following lumbar total disc replacement.

The main goal of total disc replacement (TDR) is to preserve motion. Despite reports of good clinical outcomes, various degrees of heterotopic ossification after TDR have been reported. The purpose of this study was to investigate the prevalence and its clinical relevance of heterotopic ossification.

Intra-articular repair of an isolated partial articular-surface tear of the subscapularis tendon.

Background: Partial-thickness tear of the subscapularis tendon in the articular surface is common.

Hypothesis: Intra-articular repair of a partial articular-surface tear of the subscapularis tendon will provide a successful outcome.

Study Design: Case series; Level of evidence, 4.

The Kim test: a novel test for posteroinferior labral lesion of the shoulder--a comparison to the jerk test.

Background: Detection of a posteroinferior labral lesion by physical examination is often difficult.

Purpose: To introduce a novel diagnostic test for detecting a posteroinferior labral lesion of the shoulder.

Hypothesis: The Kim test can detect a posteroinferior labral lesion of the shoulder.