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1.
Am J Infect Control ; 48(2): 167-172, 2020 02.
Article in English | MEDLINE | ID: mdl-31604621

ABSTRACT

BACKGROUND: For the prevention of surgical wound infections (SSIs), local microorganism counts can be lowered by skin antisepsis prior to surgical incisions. Until now, it has been unclear which antiseptic is the most effective. METHODS: This prospective randomized trial analyzed the efficacy of 2 frequently used agents in the reduction of postoperative wound complication rates after aseptic trauma surgery on the lower leg and foot. In the study, 279 consecutive participants were randomized; 112 received surgical skin preparations using chlorhexidine (CHX) (ChloraPrep; Becton Dickinson, Franklin Lakes, NJ) and 167 received preparations with povidone-iodine (PVP-I) (Braunoderm; B. Braun Melsungen AG, Melsungen, Germany). Primary clinical endpoints were SSIs and wound healing disorders (WHDs) within 6 months after surgery. Secondary outcome variables included demographic and perioperative risk factors for SSIs. RESULTS: Rates of WHDs and SSIs were significantly higher in the PVP-I treatment group, which experienced 9 SSIs and 12 WHDs (n = 21; 12.6%), compared to the CHX treatment group, which had 2 SSIs and 3 WHDs (n = 5; 4.5%) (P = .022). Perioperative risk factors for WHDs were obesity and longer surgery time, whereas SSIs were increased in participants with cardiovascular diseases and suction drainage. Logistic regression analysis showed that the odds of complications of wound healing were 3.5 times higher for PVP-I than for CHX (odds ratio = 3.5; 95% confidence interval, 1.1-11.2; P = .032). CONCLUSIONS: Preoperative skin antisepsis for trauma surgery of the lower leg and foot using CHX led to significantly fewer complications of wound healing when compared to PVP-I.


Subject(s)
Anti-Infective Agents, Local/pharmacology , Antisepsis/methods , Chlorhexidine/pharmacology , Povidone-Iodine/pharmacology , Adult , Aged , Aged, 80 and over , Female , Humans , Lower Extremity , Male , Middle Aged , Odds Ratio , Preoperative Care , Prospective Studies , Risk Factors , Surgical Wound Infection/prevention & control , Young Adult
2.
Injury ; 50 Suppl 3: 63-68, 2019 Aug.
Article in English | MEDLINE | ID: mdl-31378540

ABSTRACT

INTRODUCTION: Surgical treatment of displaced intra-articular calcaneal fractures using a standard extended lateral approach for plate fixation is frequently associated with substantial wound healing complications and infections. This matched pairs analysis compares the new minimally-invasive calcaneal interlocking nailing technique to standard locking plate fixation in terms of reduction capacity, complication rates, and functional outcomes. METHODS: Forty feet in 38 patients (mean patient age 52.5 years, range 27-78) were treated with calcaneal locking nail (LN)(n=20) or locking plate (LP)(n=20) and followed clinically and radiologically for 20 months. Follow-up included radiological assessments and functional evaluations including the American Orthopaedic Foot and Ankle Society (AOFAS) Ankle-Hindfoot Score and the Foot Function Index (R-FFI). RESULTS: Times for surgery were similar for both techniques (LN 93min, range 34 to 175 vs. LP 101min, range 53 to 305). Length of hospital stay was significantly lower in the LN group (7.6 days, range 3 to 14 vs. LP 11 days, range 6 to 37). Time away from work was shorter by 3.5 days in LN group. LP group had superior range of motion in plantarflexion, eversion, and inversion at follow-up, while LP patients were superior in demonstrating a secure heelstrike (79% vs. LN 58%) and fewer needed permanent walking aids. AOFAS and FFI scores revealed no differences for both groups. Radiographs indicated an adequate reconstruction in both groups, followed by a slight loss of reduction at follow-up (LP 4.7° postoperative vs. follow-up; LN 5.1°). The overall complication rate between groups was significant with 5% complications in the LN group vs. 50% in the LP group (5% deep infection, 35% impaired wound healing, 5% hardware breakage, 5% superficial wound infection; LN: 5% superficial wound infection). CONCLUSIONS: The new calcaneal interlocking nail shows promising results in terms of reduction capacity and safety. Use of the minimally invasive locking nail technique minimized the risk of postoperative wound complications and achieved superior functional outcomes compared with standard locking plate fixation via the extended lateral approach.


Subject(s)
Calcaneus/surgery , Foot Injuries/surgery , Fracture Fixation, Internal/methods , Intra-Articular Fractures/surgery , Postoperative Complications/surgery , Adult , Aged , Bone Plates , Female , Foot Injuries/diagnostic imaging , Foot Injuries/physiopathology , Humans , Intra-Articular Fractures/diagnostic imaging , Intra-Articular Fractures/physiopathology , Male , Middle Aged , Postoperative Complications/diagnostic imaging , Postoperative Complications/physiopathology , Radiography , Range of Motion, Articular , Treatment Outcome
3.
J Diabetes Res ; 2018: 5910639, 2018.
Article in English | MEDLINE | ID: mdl-30525053

ABSTRACT

INTRODUCTION: Diabetic neuroosteoarthropathy (DNOAP) early symptoms are unspecific, mimicking general infectious symptoms and rendering a diagnosis challenging. Consequently, unfavourable outcomes occur frequently, with recurrent foot ulceration, infectious complications, and eventually amputation. Corneal confocal microscopy (CCM) of the subbasal nerve plexus (SNP) is used to detect early peripheral neuropathy in diabetic patients without diabetic retinopathy. This pilot study was designed to determine if specific SNP changes manifest in severe DNOAP in comparison to a healthy control group. METHODS: This pilot study utilized a matched-pair analysis to investigate SNP changes by in vivo CCM for 26 patients (mean patient age 63.7 years, range 27 to 78) with severe DNOAP defined by condition after the need for reconstructive foot surgery (n = 13) and a healthy control group (n = 13). Corneal nerve fibre length (CNFL), nerve fibre density (CNFD), nerve branch density (CNBD), average weighted corneal nerve fibre thickness (CNFTh), nerve connecting points (CNCP), and average weighted corneal nerve fibre tortuosity (CNFTo) were assessed as well as the general clinical status, diabetic status, and ophthalmologic basic criteria. RESULTS: In vivo CCM revealed significantly reduced SNP parameters in the DNOAP group for CNFL (p = 0.010), CNFD (p = 0.037), CNBD (p = 0.049), and CNCP (p = 0.012) when compared to the healthy control group. Six patients (46%) of the DNOAP group suffered from diabetic retinopathy and none of the control group. CONCLUSIONS: This pilot study revealed a rarefication of SNP in all measured parameters in patients with severe DNOAP. We see a potential value of CCM providing a SNP-based biomarker for early stages of DNOAP prior to the development of any foot deformities that needs to be evaluated in further studies. This trial is registered with German Clinical Trials Register (DKRS) DRKS00007537.


Subject(s)
Cornea/diagnostic imaging , Cornea/innervation , Diabetic Foot/diagnostic imaging , Diabetic Neuropathies/diagnostic imaging , Adult , Aged , Arthropathy, Neurogenic/diagnostic imaging , Case-Control Studies , Diabetic Retinopathy/diagnostic imaging , Female , Foot Deformities/diagnostic imaging , Humans , Male , Microscopy, Confocal , Middle Aged , Nerve Fibers/pathology , Pilot Projects
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