Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA
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Knee Surg Sports Traumatol Arthrosc · Sep 2015
Clinical TrialForeseeing the danger in the beach chair position: Are standard measurement methods reliable?
The aim of this study is to show whether peripheral perfusion monitoring methods reflect central perfusion during shoulder arthroscopy at beach chair position. We hypothesized that mean arterial pressure (MAP), central heart rate (CHR) and peripheral oxygenation (SaO2) measurements individually will not parallel cerebral oximetry measurements by near-infrared spectroscopy (NIRS). ⋯ Cerebral oximetry by NIRS may prove useful as a monitor for cerebral ischaemia. In the absence of NIRS, CHR can partially detect abnormalities but not trustable, and MAP is the most reliable method for monitoring.
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Knee Surg Sports Traumatol Arthrosc · Sep 2015
Opioids as an alternative to amide-type local anaesthetics for intra-articular application.
Recently, the safety profile of local anaesthetics in intra-articular use became into focus of investigation. Opioid drugs have a different mode of action and may be a safe and potent alternative for intra-articular application. The purpose of this in vitro study is to provide evidence for significant chondrotoxicity of amide-type local anaesthetics even after short-term application on human chondrocytes and to demonstrate the absence of such negative effects for opioids [morphine, morphine-6-glucuronide (M6G)]. ⋯ The results confirm dose- and time-dependent cytotoxic effects on human chondrocytes for amide-type local anaesthetics. This study confirms the safety of morphine and M6G in terms of an absence of cytotoxic effects after intra-articular application, making them safe potential alternatives in clinical practice.
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Knee Surg Sports Traumatol Arthrosc · Sep 2015
Distribution of the axillary nerve to the subacromial bursa and the area around the long head of the biceps tendon.
Patients with a shoulder disorder often complain of pain on the anterior or lateral aspect of the shoulder. Such pain has been thought to originate from the suprascapular nerve. However, taking into consideration the distinctive course of the axillary nerve, the axillary nerve is likely to supply branches to the structure around the shoulder joint. This study was conducted to clarify the division, course, and distribution of the branches which originate from the axillary nerve and innervate structures around the shoulder joint. ⋯ These results would be useful to consider the cause of the shoulder pain or to prevent the residual pain after the biceps tenodesis.
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Knee Surg Sports Traumatol Arthrosc · Sep 2015
The influence of sex hormones on anterior cruciate ligament rupture: female study.
The purpose of this study was to determine the difference in the concentrations of testosterone, 17-β estradiol and progesterone between female patients with and without ACL rupture and the possible effect of these hormones on generalised joint laxity. ⋯ Decreased concentrations of testosterone, 17-β estradiol or progesterone may be a risk factor leading to ACL rupture. The concentrations of these hormones do not affect generalised joint laxity. Additional research on a larger group of patients is necessary to further determine the effects of these hormones on generalised joint laxity and ACL ruptures. Young female athletes with lower concentrations of sex hormones are more prone to anterior cruciate ligament rupture which is why they need to reduce their sports activities during the pre-ovulatory phase of the menstrual cycle, when these concentrations are additionally reduced.
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Knee Surg Sports Traumatol Arthrosc · Sep 2015
Randomized Controlled TrialEfficacy of intraarticular application of ketamine or ketamine-levobupivacaine combination on post-operative pain after arthroscopic meniscectomy.
To evaluate the efficacy of intraarticular injection of ketamine or ketamine plus levobupivacaine on post-operative analgesia in patients undergoing arthroscopic meniscectomy. ⋯ Intraarticular ketamine provides effective post-operative analgesia. Addition of intraarticular levobupivacaine to ketamine may provide better amelioration of pain after outpatient arthroscopic meniscectomy.