Notes

Chemical substance Prioritization through Meta-Analysis Raises the Breakthrough discovery involving Antimicrobial Visits versus Microbe Pathogens.
This issue of What Is in the Literature focuses on articles on amyotrophic lateral sclerosis over the past year. Amyotrophic lateral sclerosis remains a challenging disorder with progression to death. Within the past year, a phase 2 trial of a drug combination showed slowing in the rate of progression. While awaiting a phase 3 trial or approval by the Food and Drug Administration, selected articles that aid the diagnosis, contribute to care, or add to general knowledge about the disease are reviewed.
This issue of What Is in the Literature focuses on articles on amyotrophic lateral sclerosis over the past year. Amyotrophic lateral sclerosis remains a challenging disorder with progression to death. Within the past year, a phase 2 trial of a drug combination showed slowing in the rate of progression. While awaiting a phase 3 trial or approval by the Food and Drug Administration, selected articles that aid the diagnosis, contribute to care, or add to general knowledge about the disease are reviewed.
Respiratory failure in Guillain-Barre syndrome (GBS) is common. Forced vital capacity (FVC) is the gold standard for monitoring respiratory muscle strength in GBS. In some clinical situations, FVC testing could be delayed or unavailable, thus there is a need for accurate, fast, and device-free bedside respiratory evaluation.

We examined neck flexion strength in 23 GBS patients as a possible predictor of the need for subsequent intubation and as a predictor of FVC change.

Intubation was required by 100% of patients with neck flexion strength of Medical Research Council grade ≤3. A correlation between neck flexion strength and FVC could not be determined.

Significant weakness of neck flexion (Medical Research Council grade ≤3) at the time of admission correlates with poor respiratory status as measured by the need for intubation in patients with GBS.
Significant weakness of neck flexion (Medical Research Council grade ≤3) at the time of admission correlates with poor respiratory status as measured by the need for intubation in patients with GBS.
Total talar replacement has been reported to have favorable short-term and intermediate-term results for the treatment of osteonecrosis of the talus. The purpose of this study was to evaluate the long-term clinical results of total talar replacement for a minimum of 10 years after the surgical procedure.

From October 2005 to April 2011, 19 ankles in 18 patients (1 male and 17 female) were treated using a total talar prosthesis for osteonecrosis of the talus. The median follow-up period was 152 months (interquartile range [IQR], 138, 160 months). The Ankle Osteoarthritis Scale (AOS) score, the Japanese Society for Surgery of the Foot (JSSF) Ankle-Hindfoot Scale score, and the presence of osteophytes and degenerative changes in the adjacent joints were assessed preoperatively and at the final follow-up. check details Subsidence of the prosthesis was also assessed at the earliest opportunity for full weight-bearing and the final follow-up. The postoperative range of motion of the ankle was assessed at the final follow-up. for a complete description of levels of evidence.
Repeated ventral hernia repair is associated with increased risk of complications and recurrence. The authors present the first study looking at how repeated ventral hernia repair affects quality of life, and whether there is a relationship between the number of prior repairs and quality-of-life improvement after surgery.

A retrospective chart review was conducted of patients undergoing ventral hernia repair between August of 2017 and August of 2019, who completed at least one preoperative and postoperative Abdominal Hernia-Q. Patients were split into four cohorts based on number of prior repairs (zero, one, two, or three or more). Categorical data were compared using chi-square and Fisher's exact tests, and continuous data were analyzed using Kruskal-Wallis tests.

Ninety-three patients met inclusion criteria, with 19 (20 percent), 45 (48 percent), 15 (16 percent), and 14 patients (15 percent) in each cohort, ranging from zero to three or more prior repairs. Patients with more prior repairs were significantly more likely to be readmitted and undergo reoperation (p = 0.04 and p = 0.01, respectively), in addition to significantly higher cost of care (p = 0.004). Patients with three or more prior repairs had significantly lower preoperative quality of life when compared to patients with two or fewer prior repairs (p = 0.04). However, all patients reported a similar absolute level of quality of life postoperatively, irrespective of prior repairs (p = 0.34).

Treatment of recurrent hernia remains a challenge because of poor clinical outcomes and higher risk of recurrence. This study shows that patients with multiple prior ventral hernia repairs report similar postoperative quality of life as patients undergoing primary repair. This information is valuable in determining appropriate surgical candidates and improving preoperative counseling.

Risk, II.
Risk, II.
Of the primary procedures associated with facial gender confirmation surgery, those involving the mentomandibular complex have received the least attention in the literature.

The authors present their experience with 837 trans feminine patients operated on for facial gender confirmation surgery who underwent mandibular bone contouring procedures, including bone contouring, chin and mandibular body and angle ostectomies, and osteotomies to reposition the chin. The authors describe the surgical techniques and materials used, and present a customized lower border-supported cutting guide designed by their team and used with 205 patients. A femininity perception score was calculated preoperatively and 12 months postoperatively, and satisfaction with the results was measured 12 months postoperatively.

The postoperative follow-up ranged from 12 to 110 months. The mean femininity perception score increased from 47.86 preoperatively to 76.41 at 12 months postoperatively (p < 0.001). No emergency surgical operntire mandibular line. The facial feminization achieved high satisfaction scores regarding the results and feminine gender appearance 12 months after surgery. The future of mandibular bone contouring techniques includes planning with virtual software and surgical support with patient-specific cutting guides.
Many patients with constriction band syndrome will seek treatment to improve limb function and cosmesis. Although several techniques for excision are reported, cosmetic and functional deficits can persist, including hourglass deformity, lymphedema, and inadequate band excision with resultant neurovascular compromise, which may lead to revision surgery, including amputation. The authors present a novel technique that uses multiple continuous opposing Y-to-V-plasties in a single or staged manner to correct extremity constriction bands.

Seven patients with 10 involved extremities were included in this retrospective case series. Patient demographics, associated abnormalities, and operative indications were collected from medical records. The primary outcome measures were primary wound healing and release of the constriction band. Secondary outcomes measures were perioperative complications and the need for revision surgery.

All patients achieved primary closure with excellent healing in one or two stages. No infections or scar complications occurred, and no revision surgery of the band was required. One patient had mild indentation of scar tissue after their second stage, which improved with scar massage. One patient who had preoperative sciatic compression neuropathy and an insensate foot secondary to band constriction developed chronic calcaneal osteomyelitis requiring a subsequent Syme amputation. Postoperative lymphedema occurred in two patients, which resolved with the use of compression bandages over several weeks.

Use of multiple continuous opposing Y-to-V-plasties is a safe and effective technique for adequate constriction band excision without residual hourglass deformity and good functional outcomes for patients with partial or circumferential constriction bands.

Therapeutic, IV.
Therapeutic, IV.
Although prophylactic antibiotics are considered the standard of care, data with regard to the comparative efficacy of specific antibiotics in the prevention of periprosthetic joint infection (PJI) have remained limited. This study evaluated whether perioperative antibiotic choice affects rates of PJI development in shoulder arthroplasty.

From 2000 to 2019, all primary shoulder arthroplasty types (hemiarthroplasty, anatomic total shoulder arthroplasty, reverse shoulder arthroplasty) performed for elective and trauma indications with perioperative antibiotic data and a minimum follow-up of 2 years were identified from a single institution. Demographic characteristics, PJI risk factors, and PJI-free survivorship data were retrieved. Multivariable analyses were conducted to determine the association between the antibiotic administered and the development of PJI.

Of 7,713 shoulder arthroplasties, cefazolin was administered in 6,879 procedures (89.2%) and non-cefazolin antibiotics consisting of vancomycin (4th groups for clindamycin; the HR was 5.07 (95% CI, 2.83 to 9.05; p < 0.001) for all-cause PJI and 8.01 (95% CI, 3.63 to 17.42; p < 0.001) for C. acnes PJI.

In primary shoulder arthroplasty, cefazolin administration was associated with a significantly lower rate of PJI compared with non-cefazolin alternatives, including both vancomycin and clindamycin. These risk discrepancies were observed across all infectious pathogens and may be considered even greater when C. acnes was the infecting bacterium.

Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence.
Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence.
The Accolade TMZF is a tapered-wedge cementless metaphyseal-coated femoral stem that was widely utilized from 2002 to 2012. In recent years, there have been reports of early catastrophic failure of this implant. The purposes of the present study were to establish the long-term survival of this stem and to analyze patients who underwent aseptic revision to understand the causes and risk factors for failure.

We retrospectively reviewed the records of all patients who had undergone primary total hip arthroplasty with use of an Accolade TMZF stem at a high-volume arthroplasty center. The causes and timing of revision surgery were documented. Survivorship analysis was performed with use of Kaplan-Meier curves to determine the overall and aseptic survival rates at the time of the latest follow-up. Patient and implant factors commonly associated with aseptic failure were extracted, and a Cox proportional hazards model was used.

A consecutive series of 2,609 patients who had undergone unilateral primary total hip arthroplasty with use of an Accolade TMZF femoral stem were included. The mean time from the primary procedure was 11.3 years (range, 0 days to 19.4 years). The cumulative survival rate was 95.5% ± 0.1% at the time of the latest follow-up. One hundred and seven patients underwent revision surgery, with aseptic loosening of the femoral component being the most common cause of aseptic failure in this cohort (33 of 2,609; 1.3%). Smaller femoral size and larger femoral head offset were independent risk factors for aseptic failure.

To our knowledge, this is the largest series representing the longest follow-up of this tapered-wedge cementless femoral implant. Despite early concerns, the Accolade TMZF stem had excellent survivorship in this cohort. Trunnionosis as the cause for revision surgery was rare.

Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.
Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.
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