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27 mm, 144.8 degrees and 163.1 degrees, respectively. The mean volar curvatures of the radial and intermediate columns were 156.5 and 151.4 degrees, respectively and distances of their vertices from the pronator-quadratus line were 10.96 mm and 14.13 mm, respectively. Conclusions Considerable variations occur in curvature morphology of distal radial volar surface. A best fit rather than an anatomical fit can be considered during implant selection owing to these variations. Besides volar curvature of radial and ulnar columns, location of their vertices, mediolateral angulation and surface curvature between these columns at the level of watershed line should also be considered in plate selection. A combination of a few serial increments of the described parameters in the designs of volar fixation plates would be helpful for surgeons in the best implant selection.Background The evaluation of pain catastrophizing, which is a negative emotion associated with pain, is useful for predicting pain after surgery and is also associated with upper extremity disability. Therefore, it is important to evaluate pain catastrophizing after surgery for upper limb musculoskeletal disorders. This study examined the appropriate time to evaluate pain catastrophizing after surgery for upper extremity motor disorders. Methods A total of 32 patients underwent surgery. Pain catastrophizing (Pain Catastrophizing Scale PCS) and pain intensity (Numerical Rating Scale NRS) were measured at the start of rehabilitation and 2, 4, and 8 weeks postoperatively. The subjective ability of the upper extremity was measured 8 weeks postoperatively using the Hand20 questionnaire. The variation in the postoperative PCS and NRS were investigated. Results The PCS and NRS values were significantly lower 2 weeks postoperatively than at the time rehabilitation started. VX-478 Pain catastrophizing was a significant predictor of pain, with the greatest degree of prediction at 2 weeks. Pain catastrophizing was also a significant predictor of the Hand20 result at 8 weeks postoperatively. VX-478 Conclusions Our data shows that pain catastrophizing should be evaluated 2 weeks postoperatively for the prediction of continuing pain.Most procedures that require exposure of the wrist joint requires us to go through the third and fourth compartment. VX-478 This is followed by dividing the septum between the 3rd and 4th compartments and retracting the EDC tendons ulnarwards. This can be done by various techniques. Using a form of self-retaining retractor is cumbersome and has to be repeatedly repositioned as the tendons keep slipping out. We describe a novel method to maintain this retraction throughout any wrist procedure.Background Locking plate fixation is widely used in large long bone fixation and is now available for small "long" bones in the hand. Potential advantages of unicortical locked fixation are reduced risk of over-drilling and therefore reduced risk of damage to surrounding structures and reduced risk of irritation from proud screws. Furthermore, unicortical fixation may be used where bicortical fixation is technically impossible. Our aim was to compare fixation strength of unicortical locked plate fixation with bicortical non-locked fixation in a human cadaveric model, by assessing strength under cyclical loading conditions and load to failure (LTF). Methods 16 matched pairs of embalmed and refrigerated human cadaveric metacarpals were randomly allocated to either unicortical locked or bicortical non-locked plate and screw fixation. link2 A transverse osteotomy was made. Fractures were stabilized with 2.0 mm self-tapping locking or cortical screws. Each metacarpal was then loaded with a 3-point cantilever testing using a 100 N cell on an Instron materials testing device, cyclically loading them at 1,000 repetitions of 30 N and 50 N. If there was no visible failure of the fixation from cyclical loading they were then loaded to failure with a 1 kN cell. Results There was a significant difference of average LTF between the bicortical non-locking and unicortical locking of 38.07-59.95 N (p less then 0.01). link2 However, both groups showed no statistically significant difference when comparing their performance under cyclical loading. Conclusions The authors regard unicortical locked fixation as a useful adjunct to standard plating technique.Coronavirus disease-19 has affected million of people worldwide, constituting the biggest social, economic, and health crisis since World War 2. During this pandemic, the hospitals have become hot zones for the treatment of patients. Therefore, it is important to take the appropriate protective measures and ensure the physician's health and, especially, those who work in the intensive care units and in operating rooms. In this letter, we are trying to make a discussion regarding the measures that should be considered by the healthcare workers who are facing this invisible enemy during their effort to provide their services in the surgery rooms.Background Congenital hand differences (CHD) exhibit enormous diversity and heterogeneity. Surgeons and parents often have different concepts of severity, making things difficult during parental consultation. This study aims to align surgeon/parental views on the severity of the child's CHD using a novel severity classification. Methods Parents of affected children were asked to score the severity of their child's abnormality pre- and post-consultation using a subjective scale (1-4) without any explanation. Furthermore, parents were asked to rate their concerns about the future function and appearance of their child's hand condition using a similar scale of 1-4. They were then asked to rate the severity of the CHD post-consultation and three months post-operatively following explanation of the 4-point scale, as follows 1 = treatment possible to normal; 2 = treatment possible to near normal; 3 = treatment possible but always some hand differences; 4 = treatment not possible. The surgeon also independently scored all children using his perception of the scale. Results Forty-three children with a range of CHD were recruited into the sample. Linear weighted kappa analyses comparing inter-rater agreement showed no agreement between surgeon and parents during the initial scoring without any explanations. However, with explanations added, agreement rose significantly (kappa = 0.437 post-consultation and kappa = 0.706 three months post-op). No correlation was found between severity with both appearance and function (r = 0.277 and r = -0.184, respectively). Conclusions This study demonstrated that the use of a simple scoring system was able to improve parental understanding of the severity and prognosis of CHD. The system demonstrated a good correlation between surgeon and parents. Such a scoring system can be easily utilised in the outpatient department to manage expectations and reduce anxiety.Carpal tunnel syndrome (CTS) is the most common type of entrapment neuropathy. link3 The majority of CTS cases are idiopathic and affect females between 40 and 60 years old. Conversely, this report describes two female patients in their mid-30's diagnosed with CTS caused by a median artery in the carpal tunnel using ultrasonography. We visualized the median artery which emerged from the radial artery and common interosseous artery in the proximal forearm of each patient by magnetic resonance angiography (MRA) before surgery. After the vertical incision of the transverse carpal ligament, the anomalous vessel was encountered, which ran over the median nerve at the radial aspect, and a simple mini-open procedure was performed for carpal tunnel release. Postoperatively, the CTS symptoms were relieved in both patients. link3 The purpose of this report is to describe the persistent median artery using MRA in two patients and to report on their postoperative mini-open carpal tunnel release outcomes.Although distal radius fractures are common, wrist contracture caused by an extra-articular lesion after a distal radius fracture is seldom reported. We report a rare case of wrist contracture caused by adhesion of extensor carpi radialis brevis (ECRB) tendon after distal radius fracture. link2 The patient was successfully treated with tenolysis of the ECRB tendon.A new nerve transfer option of using viable fascicle of the ipsilateral middle trunk for suprascapular nerve reconstruction is presented. The procedure was used in two patients with upper brachial plexus injury involving loss of shoulder abduction and external rotation. Clinical evaluation and nerve conduction studies in both patients confirmed axonopathy of C5, C6 roots and C5 root, respectively. The proximal root stumps were unavailable for nerve grafting due to a very proximal root level scarring. The middle trunk fascicle was dissected on its superior surface and transferred to the non-functional suprascapular nerve. After 24 months follow up full abduction and external rotation could be achieved in both the patients. link3 It is a simple and easy option for transfer to a suprascapular nerve in upper brachial plexus injuries. It lies next only to the upper trunk and does not require any additional dissection time. Donor deficit was not observed in our two patients.Chronic embedded-ring injury is a rare and uncommon presentation. This is also known as "chronic ring erosion" or "embedded ring syndrome" in the literature. Injury of this type has been associated with psychological impairment causing neglect of such injury. We herein describe a case of double embedded rings on the right ring finger in a 30-year-old healthy construction worker. A primary amputation at the metacarpophalangeal joint was performed in view of the chronicity of his condition and associated neurovascular damage. Early removal of ring is of paramount importance in any ring-associated injuries. However, fear of losing a digit has been the reason of delay in seeking medical treatment, which in turn ended up in dire consequences.Background Although postoperative outcomes of olecranon fractures are relatively favorable, postoperative stiffness of the elbow joint occurs occasionally. We aimed to identify negative prognostic factors for unfavorable outcomes following olecranon fractures. Methods We retrospectively reviewed the records of 100 patients with olecranon fractures and collected data on the conducted procedures, age, fracture condition, postoperative reduced position, and postoperative active range of motion (AROM) of the elbow joint. The primary outcome was the regaining of an AROM of > 130° flexion and less then -30° extension of the elbow joint at the final follow-up. We performed multivariate logistic regression analysis to identify the negative prognostic factors. Results The mean follow-up period was 11 months. All patients regained an average AROM of 121 degrees. Eighty-one patients regained a favorable AROM of the elbow joint. On univariate logistic regression analysis, diabetes mellitus (OR, 8.2; 95%CI, 1.6-41.7), cn the postoperative AROM of the elbow joint, at least not in the early postoperative period.Background Despite the movement of the thumb carpometacarpal joint has been studied, many unclarified points remain regarding the movement of this joint. The purpose of this study was to evaluate the in vivo kinematics of the thumb carpometacarpal joint during flexion and abduction using computed tomography images. Methods The subjects were 9 healthy males. Computed tomography images were obtained in 4 equally-divided positions from maximum extension to maximum flexion, and maximum adduction to maximum abduction of the thumb. A three-dimensional model was constructed from these images, and the models of each position were superimposed with reference to the trapezium. The amount of angular change around the bone axes of first metacarpal bone and rotation axes were evaluated. Results We found that the first metacarpal bone showed relatively simple behavior during abduction. However, during flexion, it exhibited a particular movement in which the amount of angular change of the metacarpal bone with respect to the trapezium rapidly increased with deep flexion.
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