buttonhole

BACKGROUND: Footdrop, or the inability to actively dorsiflex the foot, may result from numerous pathologic conditions, including poliomyelitis and cerebral palsy. Although the gait of patients with footdrop can be improved by performing an extensor hallucis longus (EHL) to tibialis anterior (TA) tendon transfer, the success rate of this procedure is relatively low. METHODS: Seven paralytic patients with footdrop were surgically treated using a new buttonhole-type technique that involves passing a loop of the EHL through a TA split using umbilical tape and suturing at the four corners of the EHL attaching to the TA while the foot is dorsiflexed...

Rectal laceration in the absence of concurrent anal sphincter injury at the time of parturition is not a frequently reported finding. This rarely encountered injury is also referred to as a buttonhole injury. It is a disruption of the vaginal and rectal tissue with resultant disruption of the anal epithelium in the setting of an intact external anal sphincter. A 30-year-old gravida 1 para 0 at 39 weeks presented for induction of labour due to chronic hypertension. During her labour course, she developed with superimposed preeclampsia with severe features and magnesium sulfate was initiated...

BACKGROUND: The four cannulation techniques, rope ladder (RL), area puncture (AP), buttonhole with blunt needles (BHb), and buttonhole with sharp needles (BHs), affects the arteriovenous fistula (AVF) in different ways. The aim of this study was to describe the relationship between the different cannulation techniques and the occurrence of AVF complications. METHODS: The study was performed as a national registry-based cohort study using data from the Swedish Renal Registry (SRR)...

INTRODUCTION: Despite the impact needling has had on vascular access survival and patient outcome, there is no universal or standardized method proposed for proper cannulation. Rigorous studies are needed, examining cannulation practices, and challenges to achieving complication-free cannulation. METHODS: This randomized, open-label trial was conducted at 18 dialysis units owned by a large private dialysis provider operating in Portugal. Eligible patients were adults on chronic hemodialysis, with a new arteriovenous fistula (AVF); cannulated for at least 4 weeks complication-free...

Laser-assisted in situ keratomileusis (LASIK) is one of the most commonly performed kerato-refractive surgery globally. Since its introduction in 1990, there has been a constant evolution in its technology to improve the visual outcome. The safety, efficacy, and predictability of LASIK are well known, but complications with this procedure, although rare, are not unknown. Literature review suggests that intraoperative complications include suction loss, free cap, flap tear, buttonhole flap, decentered ablation, central island, interface debris, femtosecond laser-related complications, and others...

BACKGROUND: Studies regarding hemodialysis (HD) arteriovenous fistula (AVF) cannulation in adults indicate a higher risk of infection with the buttonhole (BH) technique compared to the rope-ladder (RL) technique. Pediatric data on this issue is sparse. METHODS: We compared infection rates within the Standardizing Care to Improve Outcomes in Pediatric End stage kidney disease (SCOPE) centers performing BH cannulation versus RL cannulation of AVF. Generalized linear mixed modeling was used to assess differences in access-related blood stream infection (BSI) and access site infection (ASI) rates between the centers...

BACKGROUD: The rupture of the central slip of an extensor tendon of a finger causes a boutonniere (or buttonhole) deformity, characterized by pathologic flexion at the proximal interphalangeal (PIP) joint and hyperextension at the distal interphalangeal (DIP) joint. Currently, there are no standard treatment guidelines for this deformity. This study aimed to report clinical results of surgery to correct chronic boutonniere deformity. METHODS: This retrospective case series was conducted between January 2010 and December 2018 and only 13 patients with trauma-induced chronic deformity were included...

Although buttonhole cannulation has some benefits compared to rope-ladder cannulation, the increase of infection rates represents a major obstacle to patient safety, and its use is questionable in routine clinic practice. On the other hand, rope-ladder cannulation is difficult to implement even with a prescribed protocol, leading the cannulator in daily practice to a possible use of the area technique. This article provides a reflection on the impact of cannulation technique on the safety of patients on regular hemodialysis treatment and describes a new approach for arteriovenous fistula cannulation, the Multiple Single Cannulation Technique (MuST)...

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Background: We report the results of an observational study of arteriovenous fistula (AVF) cannulation and haemostasis practices in France. Methods: The study (sponsored by Brothier Pharmaceutical Inc.) was conducted in 150 dialysis units. Data obtained from 150 supervisory nurses, 1538 nurses and 3588 patients with an AVF were analysed. Results: The nurses reported using rope-ladder, area or buttonhole cannulation techniques in 68, 26 and 6% of cases, respectively...

MJ0366 from Methanocaldococcus jannaschii is the smallest topologically knotted protein known to date. With 92 residues in length, MJ0366 ties a trefoil (31 ) knot by threading its C-terminal helix through a buttonhole formed by the remainder of the secondary structure elements. By generating a library of point mutations at positions pertinent to the knot formation, we systematically evaluated the contributions of individual residues to the folding stability and kinetics of MJ0366. The experimental Φ-values were used as restrains to computationally generate an ensemble of conformations that correspond to the transition state of MJ0366, which revealed several non-native contacts...

No abstract text is available yet for this article.

This study aimed to evaluate the intra- and postoperative complications of intraocular lens (IOL) implantation with posterior optic buttonholing (POBH) in children that had undergone phacoemulsification irrigation/aspiration for congenital/developmental cataract and experienced complication of anterior capsulorrhexis extension (ACE). A total of 25 eyes of 21 patients were included in the study. A foldable three-piece IOL was implanted into the bag/ciliary sulcus with primary posterior capsulorrhexis and POBH...

Gaining an esthetical skin coverage can be challenging in some hypospadias repair cases, especially in those with significant ventral skin paucity. A local institutional technique used to correct ventral skin paucity in hypospadias is described. It consists of a redistribution of the abundant dorsal skin and its hooded prepuce to the ventral side of the penis where skin shortage is observed. Reallocation of the skin is performed by buttonholing the dorsal skin to the ventral side. This versatile technique can be adapted to most penile surgeries where some ventral skin paucity is observed...

CASE: Pediatric femoral neck fractures are rare injuries usually associated with high-energy trauma. We present a grossly displaced femoral neck fracture in a 7-year-old girl due to a high violence road traffic accident, in which the femoral neck had buttonholed medially into the adductors. The management and clinical and radiological outcomes are discussed with relevant literature. CONCLUSION: This case is reported for its atypical presentation, in which the metaphysis of the proximal femur completely separated from the capital epiphysis and the greater trochanteric apophysis leaving the posterior periosteal flap intact mimicking the retinacular flap technique for capital realignment procedure...

Closed and open injuries of the extensor mechanism at the proximal interphalangeal (PIP) joint can involve the central slip, the lateral slips or both. They are classified as zone III injuries. All open injuries on the dorsal side of the PIP joint should raise suspicion of an extensor tendon injury that is frequently overlooked. The operative strategy consists of wound revision with extensor tendon suture or refixation of the central slip. Acute closed central slip injuries are clinically diagnosed (Elson test) after ruling out bony injuries to the joint...

Addition to Orthopedic Literature: Posterolateral knee dislocations are extremely rare and generally require open reduction; however, we were able to provide closed reduction by reproducing mechanism of injury with a technique described in the literature. This is the second reported case of such accomplishment. Introduction: Posterolateral knee dislocation is the most common form of "irreducible" knee dislocations. Buttonholing of the medial femoral condyle through medial soft tissues of the knee results in entrapment...

Purpose: To assess the efficacy and safety of transepithelial photorefractive keratectomy (TPRK) without mitomycin C as treatment for femtosecond laser in situ keratomileusis (FS-LASIK) corneal flap complications. Methods: Eight patients with corneal flap complications that occurred after FS-LASIK (five with eccentric flaps, two with buttonhole flaps, and one with a thick flap) were included in the study. Patients were treated with TPRK without mitomycin C between two weeks and twelve months after surgery...

AIMS: To evaluate the effects of no-suction femtosecond laser (FSL) stability on conjunctival autograft (CAG) dissection in pterygium surgery. METHODS: Prospective analysis of 35 eyes from 34 subjects who underwent femtosecond laser-assisted pterygium surgery with the Ziemer Z8 laser (Ophthalmic Systems AG, Switzerland). Intraoperative absolute FSL displacements were measured and correlated with the duration and ease of CAG peel, CAG thickness, measured with intraoperative optical coherence tomography, and deviation from intended graft thickness...

BACKGROUND: Cannulation of arteriovenous access for haemodialysis affects longevity of the access, associates with complications and affects patients' experiences of haemodialysis. Buttonhole and rope ladder techniques were developed to reduce complications. However, studies that compare these two techniques report disparate results. This systematic review performs an in-depth exploration of RCTs, with a specific focus on cannulation as a complex intervention. METHODS: A PICO question and protocol was developed as per PRISMA-P guidance and registered on PROSPERO (CRD42018094656 https://www...