Rib Composite Flap With Intercostal Nerve and Internal Thoracic Vessels for Mandibular Reconstruction

Summary Aim: Determination of the range of regional blood flow and fluoride influx during normal incorporation of revascularized fibula grafts used for mandibular reconstruction. Evaluation, if healing complications are preceded by typical deviations of these parameters from the normal range. Assessment of the potential influence of using “scaled population-derived” instead of “individually measured” input functions in quantitative analysis. Methods: Dynamic F-l 8-PET images and arterialized venous blood samples were obtained in 11 patients early and late after surgery. Based on kinetic modeling regional blood flow (K1) and fluoride influx (Kmlf) were determined. Results: In uncomplicated cases, early postoperative graft K1 - but not Kmlf -exceeded that of vertebrae as reference region. Kmn values obtained in graft necrosis (n = 2) were below the ranges of values observed in uncomplicated healing (0.01 13-0.0745 ml/min/ml) as well as that of the reference region (0.0154-0.0748). Knf values in mobile non-union were in the lower range - and those in rigid non-union in the upper range of values obtained in stable union (0.021 1-0.0694). If scaled population-derived instead of measured input functions were used for quantification, mean deviations of 23 ± 17% in K1 and 12 ± 16% in Kmlf were observed. Conclusions: Normal healing of predominantly cortical bone transplants is characterized by relatively low osteoblastic activity together with increased perfusion. It may be anticipated that transplant necrosis can be identified by showing markedly reduced F− influx. In case that measured input functions are not available, quantification with scaled population-derived input functions is appropriate if expected differences in quantitative parameters exceed 70%.

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Serratus Anterior Plane Block Versus Intercostal Nerve Block for Postoperative Analgesia

Case Medical Research ◽

10.31525/ct1-nct04250272 ◽

2020 ◽

Author(s):

Keyword(s):

Nerve Block ◽

Postoperative Analgesia ◽

Intercostal Nerve ◽

Serratus Anterior ◽

Intercostal Nerve Block ◽

Anterior Plane

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Prospective case series on the use of peripheral nerve stimulation for focal mononeuropathy treatment

Pain Management ◽

10.2217/pmt-2019-0028 ◽

2019 ◽

Vol 9 (6) ◽

pp. 551-558 ◽

Cited By ~ 2

Author(s):

Jessica Oswald ◽

Varun Shahi ◽

Krishnan V Chakravarthy

Keyword(s):

Peripheral Nerve ◽

Case Series ◽

Suprascapular Nerve ◽

Intercostal Nerve ◽

Nerve Stimulator ◽

Patient Case ◽

Peripheral Nerve Stimulator ◽

Pain Scores ◽

Early Results ◽

Prospective Case Series

Aim: This case series looks at outcomes in 39 patients implanted using the Bioness Stimrouter system on various isolated mononeuropathies. Patients & methods: A case series of 39 patients with a total of 42 implants were enrolled starting August 2017 at various pain management centers. Results: Of 39 patients studied, 78% of the participants noticed an improvement in their pain. There was a 71% reduction in pain scores with the average preprocedure score of 8 improving to 2 post-implant. Participants noted on average a 72% improvement in activity with the greatest observed in the brachial plexus (80%) and suprascapular nerve (80%) and smallest in the intercostal nerve (40%). Approximately 89% of those implanted with a peripheral nerve stimulator experienced a greater than 50% reduction in opioid consumption. Conclusion: Peripheral nerve stimulators are a new, minimally invasive neuromodulation modality that shows promising early results in our 39-patient case series.

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Investigation Into the Optimal Number of Intercostal Nerve Transfers for Musculocutaneous Nerve Reinnervation: A Systematic Review

Hand ◽

10.1177/1558944717744280 ◽

2017 ◽

Vol 13 (6) ◽

pp. 621-626 ◽

Cited By ~ 2

Author(s):

Hyuma A. Leland ◽

Beina Azadgoli ◽

Daniel J. Gould ◽

Mitchel Seruya

Keyword(s):

Systematic Review ◽

Brachial Plexus ◽

Donor Site ◽

Elbow Flexion ◽

Donor Site Morbidity ◽

Intercostal Nerve ◽

Optimal Number ◽

Musculocutaneous Nerve ◽

Nerve Transfers ◽

Meta Analyses

Background: The purpose of this study was to systematically review outcomes following intercostal nerve (ICN) transfer for restoration of elbow flexion, with a focus on identifying the optimal number of nerve transfers. Methods: A systematic review was performed following Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines to identify studies describing ICN transfers to the musculocutaneous nerve (MCN) for traumatic brachial plexus injuries in patients 16 years or older. Demographics were recorded, including age, time to operation, and level of brachial plexus injury. Muscle strength was scored based upon the British Medical Research Council scale. Results: Twelve studies met inclusion criteria for a total of 196 patients. Either 2 (n = 113), 3 (n = 69), or 4 (n = 11) ICNs were transferred to the MCN in each patient. The groups were similar with regard to patient demographics. Elbow flexion ≥M3 was achieved in 71.3% (95% confidence interval [CI], 61.1%-79.7%) of patients with 2 ICNs, 67.7% (95% CI, 55.3%-78.0%) of patients with 3 ICNs, and 77.0% (95% CI, 44.9%-93.2%) of patients with 4 ICNs ( P = .79). Elbow flexion ≥M4 was achieved in 51.1% (95% CI, 37.4%-64.6%) of patients with 2 ICNs, 42.1% (95% CI, 29.5%-55.9%) of patients with 3 ICNs, and 48.4% (95% CI, 19.2%-78.8%) of patients with 4 ICNs ( P = .66). Conclusions: Previous reports have described 2.5 times increased morbidity with each additional ICN harvest. Based on the equivalent strength of elbow flexion irrespective of the number of nerves transferred, 2 ICNs are recommended to the MCN to avoid further donor-site morbidity.

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