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1.

Background

Percutaneous Achilles tendon repair has been developed to minimise soft tissue complications following treatment of tendon ruptures. However, there are concerns because of the risk of sural nerve injury. Few studies have investigated the relationship between the Achilles tendon, the sural nerve and its several anatomical course variants.

Methods

We studied 7 cadaveric limbs (7 Achilles tendons) in which a percutaneous repair of the Achilles tendon was performed. On each tendon, high resolution real time ultrasonography examination was performed by an experienced musculoskeletal radiologist before and after the procedure, with the surgeons blind to the results of the scan both before and after surgery.

Results

In two instances, high resolution real time ultrasonography examination revealed nerve entrapment at the level of most proximal lateral suture.

Conclusions

Since the sural nerve can be easily visualised using high-frequency high resolution real time ultrasonography, intraoperative ultrasound can be of assistance during percutaneous repair of Achilles tendon rupture.

Clinical relevance

The sural nerve can be readily visualised by high-frequency high resolution real time ultrasonography probes. It could be beneficial to use high resolution real time ultrasonography intraoperatively or perioperatively to minimise the risks of sural nerve injury when undertaking percutaneous repair of Achilles tendon tears.  相似文献   

2.

Background

Subtalar arthrodesis through an open approach carries significant risk of complications. An arthroscopic approach aims to minimise damage to the soft tissue envelope to improve recovery, union and complication rates. A two portal approach through the sinus tarsi was used.

Methods

A retrospective review of all patients undergoing isolated arthroscopic arthrodesis was performed.

Results

Seventy-seven procedures were performed. Successful arthrodesis was achieved in 75 (97.4%). Two patients underwent successful revision arthrodesis for aseptic nonunion. There was one (1.3%) superficial infection and one (1.3%) partial sural nerve injury.

Conclusions

Two-portal sinus tarsi arthroscopic subtalar arthrodesis is safe and effective. Advantages over other arthroscopic approaches are the access to all three facets of the joint, avoidance of a posterolateral portal in order to minimise risk to the sural nerve, and the ability to use the same approach to arthrodese the entire triple hindfoot joint complex. Technical tips and pitfalls are discussed.  相似文献   

3.

Background

This research studied the safety and efficacy of a new portal to the spring ligament. This portal is located just plantar to the insertion of the posterior tibial tendon and above the fibrous septum between the posterior tibial and the flexor digitorum longus tendons.

Methods

Twelve fresh frozen foot and ankle specimens were used. The distance between the accessory medial portal and the medial plantar nerve was measured. The relation between the medial plantar nerve and the spring ligament was studied. The depth that can be reached through the portal was also assessed.

Results

The average distance between the insertion point of the 3 mm diameter metal rod and the medial plantar nerve was 20(6–27) mm. The medial plantar nerve located at lateral third of the ligament in 8 specimens (67%), middle third in 2 specimens (17%) and medial third in 2 specimens (17%). The tip of rod can reach Zone A in all specimens.

Conclusion

This study demonstrated that arthroscopic approach and repair of the spring ligament can injure the medial plantar nerve.

Clinical relevance

The clinical relevance of this cadaver study is that it confirmed the feasibility of arthroscopic approach to the whole span of the spring ligament and alerted the potential risk of injury to the medial plantar nerve during arthroscopic assisted repair of the ligament.  相似文献   

4.

Background

Open Achilles tendon repairs (OATR) are associated with high complication rates. Minimally invasive surgery (MIS) techniques like the Achillon Achilles tendon repair (AATR) were developed to reduce this. We performed a systematic review and meta-analysis to compare OATR with AATR.

Methods

We performed an extensive literature search including all studies that compared the two techniques. Outcomes assessed included overall complication rate, re-rupture rate, sural nerve injury, wound length, The American Orthopaedic Foot and Ankle Scores (AOFAS) scores and return to sports.

Results

Eight studies were suitable for inclusion totalling 210 patients in the AATR group vs 233 patients in the OATR group. Total complication rates were significantly reduced in the Achillon patients with odd ratio of 0.14 (CI 95%, 0.08–0.27, P < 0.00001) in favour. There were no significant differences in re-rupture rate, sural nerve injury, return to sports and AOFAS scores following repair between the two groups.

Conclusions

AATR has fewer overall complications compared with OATR. It should be considered as an alternative to open surgical repair.  相似文献   

5.

Background

A number of studies report on limitations of the screw arthrodesis in severe malalignment of the hindfoot, neuropathic deformity, poor bone quality and osteoporosis.

Methods

Fourteen anatomically correct polyurethane foam models of the right leg (Sawbones Europe, Malmö, Sweden) and eighteen fresh-frozen human lower leg specimens (9 pairs) were used for the comparative biomechanical testing.

Results

The statistical analysis of the stiffness of the fixation developed a significant difference in favor of the plate in all test directions.

Conclusions

The excellent biomechanical results are very promising and we hope for a reduction of the pseudarthrosis rate and shorten the postoperative treatment phase.  相似文献   

6.

Introduction

Pudendal nerve entrapment syndrome (PNE) is characterised by the presence of neuropathic pain in the pudendal nerve (PN) territory, associated or not with urinary, defecatory and sexual disorders. Surgical PN decompression is an effective and safe alternative for cases when conservative treatment fails. The aim of this study is to describe the first robot-assisted pudendal neurolysis procedure performed in our country.

Material and methods

We describe step by step the technique of robot-assisted laparoscopic neurolysis of the left PN performed with intraoperative neurophysiological monitoring on a 60-year-old patient diagnosed with left PNE.

Results

The procedure was performed satisfactorily without complications. After 24 h, the patient was discharged from the hospital. We observed a 50% reduction in pain measured using the visual analogue scale 2 weeks after the procedure, which remained after 10 weeks of the neurolysis.

Conclusions

Robot-assisted neurolysis of the PN constitutes a feasible and safe approach, enabling better visualisation and accuracy in the dissection of the PN. Intraoperative neurophysiological monitoring is useful for locating the PN and for detecting intraoperative changes after the release of the nerve.  相似文献   

7.

Purpose

To perform a synthesis of articles addressing the role of stretching on roots in the pathophysiology of radiculopathy.

Methods

Review of relevant articles on this topic available in the PubMed database.

Results

An intraoperative microscopy study of patients with sciatica showed that in all patients the hernia was adherent to the dura mater of nerve roots. During the SLR (Lasègue's) test, the limitation of nerve root movement occurs by periradicular adhesive tissue, and temporary ischemic changes in the nerve root induced by the root stretching cause transient conduction disturbances. Spinal roots are more frail than peripheral nerves, and other mechanical stresses than root compression can also induce radiculopathy, especially if they also impair intraradicular blood flow, or the function of the arachnoid villi intimately related to radicular veins. For instance arachnoiditis, the lack of peridural fat around the thecal sac, and epidural fibrosis following surgery, can all promote sciatica, especially in patients whose sciatic trunks also stick to piriformis or internus obturator muscles. Indeed, stretching of roots is greatly increased by adherence at two levels.

Conclusions

As excessive traction of nerve roots is not shown by imaging, many physicians have unlearned to think in terms of microscopic and physiologic changes, although nerve root compression in the lumbar MRI is lacking in more than 10% of patients with sciatica. It should be reminded that, while compression of a spinal nerve root implies stretching of this root, the reverse is not true: stretching of some roots can occur without any visible compression.  相似文献   

8.

Introduction

A lateral ankle sprain is one of the most frequent reasons for consultation at the emergency trauma unit. Numerous surgical procedures have been described with long-term outcomes that differ.

Hypothesis

The long-term results of anatomical repair of the anterior talofibular ligament (ATFL) and the calcaneofibular (CFL) ligament are better, with less secondary radiological osteoarthritis than non-anatomical repair.

Materials and methods

A review of the literature after a minimum follow-up of 10 years was performed to analyze the clinical and radiological results of direct anatomical repair (Broström, Duquennoy) and non-anatomical repair (Watson Jones, Evans, Castaing). Thirteen articles were selected.

Results

Eight hundred and one ankles were evaluated after a mean follow-up of 15.3 years. The functional outcome was better after anatomical repair but with recurrent instability. Loss of range of motion and secondary osteoarthritis was more frequent after non-anatomical repair.

Conclusion

Anatomical repair of the lateral collateral ligament of the ankle resulted in a better functional outcome and less secondary osteoarthritis than non-anatomical repair.

Study design

Review of the literature; level of proof IV.  相似文献   

9.

Background

The purpose of this study is to describe a simple and reproducible method to localize the neurological structures at risk and to describe a safe zone for hallux minimally invasive surgery (MIS) procedures.

Methods

Ten fresh-frozen cadaveric feet were dissected to identify the dorsomedial digital nerve (DMDN) and the dorsolateral digital nerve (DLDN) of the first toe. Axial sections were performed at the sites of metatarsal osteotomies. We documented the position of the nerves with respect to the extensor hallucis longus (EHL) tendon using a clock method superimposed on the axial section

Results

The DMDN was found at an average of 26.2° medial to the medial border of the EHL tendon. (SD 11.26, range 14.5–45.5), whereas the average distance of the DLDN was 32.3° lateral to the medial border of the EHL tendon. (SD 6.29, range 13.5–40).

Conclusions

Using the clock method the DMDN and DLDN were found consistently between 10 o’clock and 2 o’clock in either right and left feet. The clock method may facilitate avoiding the area where these nerves are located serving as a valuable tool in minimally invasive foot surgery.  相似文献   

10.

Introduction

Bladder paragangliomas (BP) are rare tumors, with clinical manifestations ranging from hypertension to hematuria to being asymptomatic. Histologically, they can mimic urothelial carcinomas. Around 200 cases of paragangliomas arising in the urinary bladder have been described in the world literature.

Observation

We report 2 new cases of BPs presenting with subtle clinical symptoms like increased urinary frequency. On routine cystoscopic examination of the bladder, bladder tumors were detected.

Conclusion

We would like to stress on the histomorphology and immunohistochemistry findings of this rare condition and its diagnosis on transurethral resection specimens.  相似文献   

11.

Background

We performed a prospective study to evaluate and compare the effectiveness of postoperative pain control methods after bone surgery in the foot and ankle.

Methods

Among the patients who underwent foot and ankle surgery from June 2014 to September 2015 with an ultrasound-guided nerve block, 84 patients who fully completed a postoperative pain survey were enrolled. An opioid patch (fentanyl patch, 25 mg) was applied in group A (30 patients). Diluted anesthetic (0.2% ropivacaine, 30 ml) was injected into the sciatic nerve once, about 12 h after the preoperative nerve block, in group B (27 patients). Periodic intramuscular injection of an analgesic (ketorolac [Tarasyn], 30 mg) was performed in group C (27 patients). The visual analogue scale (VAS) pain scores at 6, 12, 18, 24, and 48 h after surgery were checked, and the complications of all methods were monitored.

Results

The mean VAS pain score was lower in group B, with a statistically significant difference (P < .05) between groups A, B, and C at 12 and 18 h after surgery. Four patients in group A experienced nausea and vomiting; however, no other patients complained of any complications or adverse effects.

Conclusion

The ultrasound-guided injection of a diluted anesthetic into the sciatic nerve seemed to be the most useful method for controlling pain in the acute phase after bone surgery in the foot and ankle. The injection of the diluted anesthetic once on the evening of the day of surgery resulted in less postoperative pain in the patients.

Level of evidence

II.  相似文献   

12.

Background

The current recommendation of using transrectal ultrasound-guided biopsy (TRUSB) to diagnose prostate cancer misses clinically significant (CS) cancers. More sensitive biopsies (eg, template prostate mapping biopsy [TPMB]) are too resource intensive for routine use, and there is little evidence on multiparametric magnetic resonance imaging (MPMRI).

Objective

To identify the most effective and cost-effective way of using these tests to detect CS prostate cancer.

Design, setting, and participants

Cost-effectiveness modelling of health outcomes and costs of men referred to secondary care with a suspicion of prostate cancer prior to any biopsy in the UK National Health Service using information from the diagnostic Prostate MR Imaging Study (PROMIS).

Intervention

Combinations of MPMRI, TRUSB, and TPMB, using different definitions and diagnostic cut-offs for CS cancer.

Outcome measurements and statistical analysis

Strategies that detect the most CS cancers given testing costs, and incremental cost-effectiveness ratios (ICERs) in quality-adjusted life years (QALYs) given long-term costs.

Results and limitations

The use of MPMRI first and then up to two MRI-targeted TRUSBs detects more CS cancers per pound spent than a strategy using TRUSB first (sensitivity = 0.95 [95% confidence interval {CI} 0.92–0.98] vs 0.91 [95% CI 0.86–0.94]) and is cost effective (ICER = £7,076 [€8350/QALY gained]). The limitations stem from the evidence base in the accuracy of MRI-targeted biopsy and the long-term outcomes of men with CS prostate cancer.

Conclusions

An MPMRI-first strategy is effective and cost effective for the diagnosis of CS prostate cancer. These findings are sensitive to the test costs, sensitivity of MRI-targeted TRUSB, and long-term outcomes of men with cancer, which warrant more empirical research. This analysis can inform the development of clinical guidelines.

Patient summary

We found that, under certain assumptions, the use of multiparametric magnetic resonance imaging first and then up to two transrectal ultrasound-guided biopsy is better than the current clinical standard and is good value for money.  相似文献   

13.

Background and objectives

Nerve injury following mask ventilation is a rare but serious anesthetic complication. The majority of reported cases are associated with excessive pressure applied to the face mask, long duration of mask ventilation, excessive digital pressure behind the mandible to relieve airway obstruction and pressure exerted by the plastic oropharyngeal airway.

Case report

We present a case of bilateral mandibular nerve injury following mask ventilation with short duration, most likely due to a semi‐silicone facemask with an over‐inflated cushion.

Conclusion

An over‐inflated sealing cushion of a facemask may trigger difficult mask ventilation leading to mandibular nerve injury following mask ventilation. Alternative airway management techniques such as laryngeal mask airway should be considered when airway maintenance can only be achieved with strong pressure applied to the facemask and/or mandible.  相似文献   

14.

Background

There are little data regarding the morbidity of lymph node dissection (LND) for renal cell carcinoma (RCC) to assess its risk–benefit ratio.

Objective

To evaluate the association of LND with 30-d complications among patients undergoing radical nephrectomy (RN) for RCC.

Design, setting, and participants

A total of 2066 patients underwent RN for M0 or M1 RCC between 1990 and 2010, of whom 774 (37%) underwent LND.

Intervention

RN with or without LND.

Outcome measurements and statistical analysis

Associations of LND with 30-d complications were examined using logistic regression with several propensity score techniques. Extended LND, defined as removal of ≥13 lymph nodes, was examined in a sensitivity analysis.

Results and limitations

A total of 184 (9%) patients were pN1 and 302 (15%) were M1. Thirty-day complications occurred in 194 (9%) patients, including Clavien grade ≥3 complications in 81 (4%) patients. Clinicopathologic features were well balanced after propensity score adjustment. In the overall cohort, LND was not statistically significantly associated with Clavien grade ≥3 complications, although there was an approximately 40% increased risk of any Clavien grade complication that did not reach statistical significance. Likewise, LND was not significantly associated with any Clavien grade or Clavien grade ≥3 complications when separately evaluated among M0 or M1 patients. Extended LND was not significantly associated with any Clavien grade or Clavien grade ≥3 complications. LND was not associated with length of stay or estimated blood loss. Limitations include a retrospective design.

Conclusions

LND is not significantly associated with an increased risk of Clavien grade ≥3 complications, although it may be associated with a modestly increased risk of minor complications. In the absence of increased morbidity, LND may be justified in a predominantly staging role in the management of RCC.

Patient summary

Lymph node dissection for renal cell carcinoma is not associated with increased rates of major complications.  相似文献   

15.
16.

Background

Androgen receptor splice variant 7 (AR-V7) has been implicated in resistance to abiraterone and enzalutamide treatment in men with metastatic castration-resistant prostate cancer (mCRPC). Tissue- or cell-based in situ detection of AR-V7, however, has been limited by lack of specificity.

Objective

To address current limitations in precision measurement of AR-V7 by developing a novel junction-specific AR-V7 RNA in situ hybridization (RISH) assay compatible with automated quantification.

Design, setting, and participants

We designed a RISH method to visualize single splice junctions in cells and tissue. Using the validated assay for junction-specific detection of the full-length AR (AR-FL) and AR-V7, we generated quantitative data, blinded to clinical data, for 63 prostate tumor biopsies.

Outcome measurements and statistical analysis

We evaluated clinical correlates of AR-FL/AR-V7 measurements, including association with prostate-specific antigen progression-free survival (PSA-PFS) and clinical and radiographic progression-free survival (PFS), in a subset of patients starting treatment with abiraterone or enzalutamide following biopsy.

Results and limitations

Quantitative AR-FL/AR-V7 data were generated from 56 of the 63 (88.9%) biopsy specimens examined, of which 44 were mCRPC biopsies. Positive AR-V7 signals were detected in 34.1% (15/44) mCRPC specimens, all of which also co-expressed AR-FL. The median AR-V7/AR-FL ratio was 11.9% (range 2.7–30.3%). Positive detection of AR-V7 was correlated with indicators of high disease burden at baseline. Among the 25 CRPC biopsies collected before treatment with abiraterone or enzalutamide, positive AR-V7 detection, but not higher AR-FL, was significantly associated with shorter PSA-PFS (hazard ratio 2.789, 95% confidence interval 1.12–6.95; p = 0.0081).

Conclusions

We report for the first time a RISH method for highly specific and quantifiable detection of splice junctions, allowing further characterization of AR-V7 and its clinical significance.

Patient summary

Higher AR-V7 levels detected and quantified using a novel method were associated with poorer response to abiraterone or enzalutamide in prostate cancer.  相似文献   

17.

Introduction

Premature growth arrest can pose a challenge to the orthopedic surgeon. Various options for treating physeal arrest exist.

Methods

Systematic searches were conducted on PubMed/Medline, ScienceDirect, OVID, and Cochrane Library. Secondary searching was performed, where certain articles from reference lists of the selected studies were reviewed that were not found in the primary search.

Results

This review article discusses the different methods of management for premature growth arrest.

Conclusions

The use of mesenchymal stem cells provides a promising alternative treatment modality.  相似文献   

18.

Background

Reconstruction of extensive penoscrotal defects is a surgical challenge. Resurfacing defects in highly complex three-dimensional structures and restoring their function are an essential part of the reconstruction of penoscrotal regions.

Objective

We describe a technique using internal pudendal artery perforator (IPAP) pedicled propeller flaps created from the gluteal fold. This could be a reliable surgical option that maintains a natural looking scrotal pouch with minimal donor site morbidity and optimal sexual activity.

Design, setting, and participants

We retrospectively reviewed data for 10 consecutive patients who had undergone penoscrotal reconstruction using IPAP pedicled propeller flaps between January 2011 and March 2015.

Surgical procedure

The IPAP was identified using a hand-held Doppler ultrasound device. This was the pivot around which the flap was internally rotated more than 90° in a tension-free manner. The long axis of the flap was centred on the gluteal fold to provide a better-orientated donor site scar.

Measurements

Complications and patient satisfaction with respect to size, colour match, scar appearance, and sexual activity were evaluated.

Results and limitations

Anatomic and aesthetic penoscrotal reconstruction was performed without any major complications in the follow-up period (mean, 19.7 mo). The mean width of the IPAP pedicled propeller flaps was 6.7 cm, and the mean length was 11.7 cm. Partial distal flap necrosis occurred in only one case, and healed spontaneously. All of the patients were satisfied with the cosmetic and functional results.

Conclusions

On the basis of reliable perforators, donor site morbidity, flap thickness, and a better orientated scar, our technique using IPAP pedicled propeller flaps created from the gluteal fold could be a reasonable surgical option for extensive penoscrotal reconstruction.

Patient summary

The creation of pedicled propeller flaps using an internal pudendal artery perforator could be a reliable surgical option for reconstruction of extensive penoscrotal defects. The approach yields functional and aesthetically acceptable surgical results.  相似文献   

19.

Background

Randomized controlled clinical trials (CTs) are gold standard tools for assessing interventions. Although burn CTs have improved care, their status, publication frequency, and publication quality are not known.

Objectives

(1) Characterize burn CTs by analyzing location, completion status, temporal trend, and funding sources. (2) Assess quality of trial reporting.

Data sources

CT records were obtained from ClinicalTrials.gov and WHO’s CT Registry (searched May 2017). Publications were obtained from PubMed, Google Scholar, OVID MEDLINE, and ClinicalTrials.gov (searched June 2017).

Publication appraisal

23-item rubric adapted from CONSORT and ICH E3 guidelines.

Results

738 burn CTs were identified globally, of which majority were publically-funded (77%), ongoing (52%), and assessed behavioral, pharmacological, device-based, dietary-based, and biological/procedural interventions. Amongst the ended trials, 69 (28%) published their findings. Significantly fewer industry-funded trials published findings (14% vs 33% publically-funded). Quality of reporting was suboptimal, and most underreported categories were trial phase, severity, and sample size estimation.

Limitations

Incomplete, outdated, and non-registered CTs which are difficult to track.

Conclusions

Burn trials are proliferating in number, location, and interventions assessed. Only a small proportion are published and quality of reporting is suboptimal.

Implications of key findings

Burn researchers should aim to register and report on all clinical trials regardless of outcome. Superior a priori design can reduce precocious termination and mandatory reporting of data fields can improve quality of reporting.Systematic review registration number: CRD42017068549.  相似文献   

20.

Background

The purpose of this anatomical study to was to determine the relationship of the structures involved in the arthroscopic repair of the anterior talofibular ligament.

Methods

Dissection of fifteen lower leg cadaveric specimens was made and distances in the anterior direction from the reference-point at the lateral malleolus origin of the anterior talofibular ligament were measured, to the talar insertion of the ligament, to the superficial peroneal nerve at 60° and 90° in relation to the lateral malleolus axis in the sagittal plane, and to the inferior extensor retinaculum.

Results

The mean ± SD distance to superficial peroneal nerve from the reference-point was 25 ± 6 (range 17–35) mm at 60°, and 32 ± 9 (range 24–48) mm at 90° in relation to the lateral malleolus axis. The mean ± SD distance to the inferior extensor retinaculum was 20 ± 5 (range 14–29) mm. The mean ± SD length of the anterior talofibular ligament was 21 ± 4 (range 13–29) mm.

Conclusions

The superficial peroneal nerve demonstrated the greatest variance in its anatomy. An accessory incision to include the inferior extensor retinaculum in the repair should not surpass the 22 mm distance from the lateral malleolus in the anterior direction, due to the risk of damaging the nerve.  相似文献   

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