{"title":"Intraneural lipoma of the median nerve: a case report.","authors":"Andrzej Zyluk","doi":"10.1055/a-2171-6956","DOIUrl":"10.1055/a-2171-6956","url":null,"abstract":"<p><p>Intraneural lipomas and lipofibromas (also called lipofibromatous hamartomas) are rare, benign tumours occurring in peripheral nerves in the forearm and wrist. They usually present as asymptomatic masses, but if they are large enough, they may cause symptoms of compression neuropathy. Intraneural lipomas and lipofibromas differ with regard to anatomy and clinical behaviour: the former tumour has a well-defined capsule and most commonly occurs within the median nerve in the forearm and wrist. It is diagnosed in the fourth and fifth decades of life and seen more frequently in women. The latter (lipofibroma) has no capsule, is infiltrative in nature, is composed of fatty and fibrous tissue and also most commonly seen in the median nerve. It occurs in a younger age group with no sexual predominance. Due to these differences, these lesions are managed differently 1 2.</p>","PeriodicalId":55075,"journal":{"name":"Handchirurgie Mikrochirurgie Plastische Chirurgie","volume":" ","pages":"261-263"},"PeriodicalIF":0.4,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50159374","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Simeon C Daeschler, Jan Sommer, Thomas Jing Zhi Tu, Sebastian Jaeger, Kevin Knappe, Leila Harhaus, Benjamin Panzram
{"title":"[Cup Placement in Thumb Carpometacarpal Joint Prostheses: The Role of the Guidewire].","authors":"Simeon C Daeschler, Jan Sommer, Thomas Jing Zhi Tu, Sebastian Jaeger, Kevin Knappe, Leila Harhaus, Benjamin Panzram","doi":"10.1055/a-2319-1157","DOIUrl":"https://doi.org/10.1055/a-2319-1157","url":null,"abstract":"<p><strong>Background: </strong>The increasing use of thumb carpometacarpal joint prostheses for advanced CMC 1 (carpometacarpal) joint arthritis reflects the success of the latest prosthesis generations, which has been achieved through their improved functional outcomes and lower complication rates. Precise alignment of the prosthesis cup parallel to the proximal joint surface of the trapezium is essential for stability and the prevention of dislocation. This is a challenging surgical step, particularly for surgeons new to this technique. Despite adequate positioning of the guidewire, misplacements of the cup may occur, necessitating intraoperative revision.</p><p><strong>Material and methods: </strong>This study examined the deviations in cup and guidewire positioning in thumb carpometacarpal joint prosthesis implantations by inexperienced and experienced surgeons through radiological analysis of 65 prostheses.</p><p><strong>Results: </strong>Both inexperienced and experienced surgeons achieved precise guidewire positioning with mean deviations of<2.2°. Inexperienced surgeons showed significantly larger cup deviations in the dorsopalmar and lateral view (7.6±6.1° and 7.3±5.9°) compared with experienced surgeons (3.6±2.7° and 3.6±2.5°; p=0.012, p=0.017). The deviation of the cup position exhibited by inexperienced surgeons tends to be in the direction opposite to the initial guidewire position (p<0.0038).</p><p><strong>Conclusion: </strong>The results highlight the current challenges in cup positioning depending on a surgeon's level of experience, questioning the reliability of the current guidewire placement.</p>","PeriodicalId":55075,"journal":{"name":"Handchirurgie Mikrochirurgie Plastische Chirurgie","volume":"56 3","pages":"212-218"},"PeriodicalIF":0.6,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141307475","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Daniel B Herren, Jean-Yves Beaulieu, Maurizio Calcagni, Christoph Erling, Martin Jung, Axel Kaulich, Marion Mühldorfer-Fodor, Michaël Papaloïzos, Anton Rosenkranz, Esther Vögelin, Miriam Marks
{"title":"[Current Trends in the Implantation of the Touch Prosthesis at the Thumb Carpometacarpal Joint: Results of the 1st German-Speaking User Meeting].","authors":"Daniel B Herren, Jean-Yves Beaulieu, Maurizio Calcagni, Christoph Erling, Martin Jung, Axel Kaulich, Marion Mühldorfer-Fodor, Michaël Papaloïzos, Anton Rosenkranz, Esther Vögelin, Miriam Marks","doi":"10.1055/a-2321-9426","DOIUrl":"10.1055/a-2321-9426","url":null,"abstract":"<p><p>The introduction of the new generation of thumb carpometacarpal (CMC I) joint implants for the treatment of CMC I osteoarthritis has significantly broadened the scope of hand surgery in recent years. However, the technical demands of the procedure and the many details that need to be considered require appropriate training and a learning curve. To share experiences with the Touch CMC I prosthesis, we held the first German-speaking CMC I joint prosthetics user meeting in Zurich. After some basic introductory lectures on biomechanics and the principles of prosthetic fitting of the CMC I joint, the various challenges associated with CMC I joint prosthetics were discussed in interactive expert panels. Subsequently, cases were discussed in small groups under expert guidance and the respective conclusions were discussed in plenary. The main results of this symposium are summarised in this manuscript.</p>","PeriodicalId":55075,"journal":{"name":"Handchirurgie Mikrochirurgie Plastische Chirurgie","volume":"56 3","pages":"201-211"},"PeriodicalIF":0.4,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11166473/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141307476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Martin Aman, Felix Struebing, Maximilian Mayrhofer-Schmid, Leila Harhaus, Ulrich Kneser, Arne Hendrik Böcker
{"title":"[Bionic Surgery Meets Bionic Reconstruction - First In-human use of Robotic Microsurgery in Targeted Muscle Reinnervation].","authors":"Martin Aman, Felix Struebing, Maximilian Mayrhofer-Schmid, Leila Harhaus, Ulrich Kneser, Arne Hendrik Böcker","doi":"10.1055/a-2241-5678","DOIUrl":"10.1055/a-2241-5678","url":null,"abstract":"<p><p>Robotic microsurgery is an emerging field in reconstructive surgery, which provides benefits such as improved precision, optimal ergonomics, and reduced tremors. However, only a few robotic platforms are available for performing microsurgical procedures, and successful nerve coaptation is still a challenge. Targeted muscle reinnervation (TMR) is an innovative reconstructive procedure that rewires multiple nerves to remnant stump muscles, thereby reducing neuroma and phantom limb pain and improving the control of bionic prostheses. The precision of surgical techniques is critical in reducing axonal sprouting around the coaptation site to minimise the potential for neuroma formation. This study reports the first use of a microsurgical robotic platform for multiple nerve transfers in a patient undergoing TMR for bionic extremity reconstruction. The Symani robotic platform, combined with external microscope magnification, was successfully used, and precise handling of nerve tissue and coaptation was easily feasible even in anatomically challenging environments. While the precision and stability offered by robotic assistance may be especially useful for nerve surgery, the high economic costs of robotic microsurgery remain a major challenge for current healthcare systems. In conclusion, this study demonstrated the feasibility of using a robotic microsurgical platform for nerve surgery and transfers, where precise handling of tissue is crucial and limited space is available. Future studies will explore the full potential of robotic microsurgery in the future.</p>","PeriodicalId":55075,"journal":{"name":"Handchirurgie Mikrochirurgie Plastische Chirurgie","volume":" ","pages":"257-260"},"PeriodicalIF":0.4,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140186378","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Wolfram Demmer, Emanuel Meyer, Elias Volkmer, Denis Ehrl, Elisabeth M Haas-Lützenberger, Constanze Kuhlmann, Riccardo E Giunta, Nikolaus Wachtel
{"title":"[Perioperative Use of Antibiotics as Infection Prophylaxis in Elective Wrist Arthroscopy: A Nationwide Survey].","authors":"Wolfram Demmer, Emanuel Meyer, Elias Volkmer, Denis Ehrl, Elisabeth M Haas-Lützenberger, Constanze Kuhlmann, Riccardo E Giunta, Nikolaus Wachtel","doi":"10.1055/a-2273-4864","DOIUrl":"10.1055/a-2273-4864","url":null,"abstract":"<p><strong>Background: </strong>Wrist arthroscopy is a standard procedure in hand surgery for the diagnosis and treatment of wrist conditions. While perioperative antibiotic prophylaxis (PAP) is not generally recommended for elective hand surgery, there is no official standard for elective wrist arthroscopy. This study aimed to determine the actual clinical use of PAP in elective wrist arthroscopy in Germany and relate it to the structural conditions of clinics performing this procedure.</p><p><strong>Material and methods: </strong>We conducted a systematic search of all facilities in Germany offering wrist arthroscopy. Among these, we performed an online survey using the SoSci Survey online tool via email.</p><p><strong>Results: </strong>PAP is more frequently administered in cases involving simultaneous bone procedures. Cephalosporins are the most commonly used antibiotics in cases of PAP administration. Hospitals administer PAP more frequently than outpatient settings, with most surveyed institutions following facility-specific internal standards for antibiotic administration. The number of arthroscopies performed in the surveyed centres does not influence antibiotic administration.</p><p><strong>Conclusions: </strong>The use of PAP in wrist arthroscopies in Germany is inconsistent. The increased use in arthroscopies with bone involvement corresponds to AWMF guidelines, but a general recommendation for wrist arthroscopies, including soft tissue arthroscopies, is necessary to provide physicians with medical and legal certainty.</p>","PeriodicalId":55075,"journal":{"name":"Handchirurgie Mikrochirurgie Plastische Chirurgie","volume":" ","pages":"250-256"},"PeriodicalIF":0.6,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140859162","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Christian Matthias Windhofer, Christoph Hirnsperger, Markus Lill
{"title":"[Base-of-thumb osteoarthritis: aspects to be considered with the indication of trapeziectomy and CMC I prosthesis].","authors":"Christian Matthias Windhofer, Christoph Hirnsperger, Markus Lill","doi":"10.1055/a-2316-8102","DOIUrl":"https://doi.org/10.1055/a-2316-8102","url":null,"abstract":"<p><p>Base-of-thumb osteoarthritis is the most frequent osteoarthritis of the hand requiring surgical treatment, although conservative treatment options should be exhausted before surgery. If the wear process progresses with continuing pain-related loss of thumb function, thus leading to a loss of function of the whole hand, surgical treatment is indicated. In 1947, Gervis published results after trapeziectomy and heralded the development of a multitude of different surgical procedures. The long time needed for rehabilitation is a major problem of trapeziectomy with or without tendon interposition and/or suspension. After the implementation of the first CMC I prosthesis by De la Caffiniere 50 years ago, a rapid development took place, leading to the current modular bipolar implants. Especially in the German-speaking world, there is still some scepticism regarding these prostheses, which is why this review aims to illuminate both surgical procedures with a special focus placed on the aspects of indication.</p>","PeriodicalId":55075,"journal":{"name":"Handchirurgie Mikrochirurgie Plastische Chirurgie","volume":"56 3","pages":"192-200"},"PeriodicalIF":0.6,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141307474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rok Kralj, Mario Kurtanjek, Ivan Silvije Gržan, Igor Bumči, Stjepan Višnjić, Rado Žic
{"title":"Flexed position of the wrist in the cast reliably prevents displacement after physeal Salter-Harris I and II distal radius fractures.","authors":"Rok Kralj, Mario Kurtanjek, Ivan Silvije Gržan, Igor Bumči, Stjepan Višnjić, Rado Žic","doi":"10.1055/a-2208-7909","DOIUrl":"10.1055/a-2208-7909","url":null,"abstract":"<p><strong>Background: </strong>Salter-Harris I and II fractures of the distal radius are common injuries. In our facility, immobilisation is performed in a way that counteracts angulation forces. The aim of our study was to determine whether there are significant differences between patients with and patients without a loss of reduction treated with this method and to determine what degree of flexion reliably prevents secondary displacement.</p><p><strong>Patients and methods: </strong>We conducted a retrospective study of 112 patients (mean age: 12 years) who had sustained a Salter-Harris type I or II fracture of the distal radius and were treated with reduction. Patients were grouped according to fracture type and whether they sustained a loss of reduction or not. Patients were compared for gender, age, initial angulation, angulation after reduction, degree of flexion/extension of the wrist in the cast, residual angulation, duration of immobilisation, and complication rate. We also analysed whether a 45-degree flexed position of the wrist in plaster provides reliable protection against secondary displacement.</p><p><strong>Results: </strong>In group I, patients with no loss of reduction had a significantly greater degree of wrist flexion in the cast, a significantly shorter duration of immobilisation and significantly less residual angulation. Patients with an apex-volar deformity with the wrist immobilised at more than 45 degrees of flexion had no loss of reduction at all and had significantly less residual angulation compared with patients with the wrist immobilised at less than 45 degrees of flexion. In this patient group, loss of reduction was noted in 28% of cases. The patients in group II with loss of reduction showed a significantly higher angulation after the reduction. During the follow-up examination, one patient experienced physeal arrest followed by an ulnar impaction syndrome. Other complications recorded were minor.</p><p><strong>Conclusions: </strong>In summary, based on our results, we recommend that all physeal fractures of the distal radius with an apex-volar angulation can be safely treated with reduction and immobilisation counteracting the forces of angulation. For apex-dorsal fractures, palmar flexion of 45° allows for reliable reduction.</p>","PeriodicalId":55075,"journal":{"name":"Handchirurgie Mikrochirurgie Plastische Chirurgie","volume":" ","pages":"242-247"},"PeriodicalIF":0.6,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140868978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Commentary on the Article of R. Kralj et al.: Flexed position of the wrist in the cast reliably prevents displacement after physeal Salter-Harris I and II distal radius fractures].","authors":"Kristofer Wintges","doi":"10.1055/a-2290-5752","DOIUrl":"10.1055/a-2290-5752","url":null,"abstract":"","PeriodicalId":55075,"journal":{"name":"Handchirurgie Mikrochirurgie Plastische Chirurgie","volume":" ","pages":"248-249"},"PeriodicalIF":0.6,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140870318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Alexander Reck, Thomas Pillukat, Jörg van Schoonhoven
{"title":"[Physiolysis with Resection of Vickers' Ligament in Adolescent Patients with Madelung's Deformity].","authors":"Alexander Reck, Thomas Pillukat, Jörg van Schoonhoven","doi":"10.1055/a-2262-0112","DOIUrl":"10.1055/a-2262-0112","url":null,"abstract":"<p><strong>Background: </strong>Madelung's deformity is a congenital or acquired growth disorder of the forearm that can lead to significant impairments in the quality of life of affected patients. Various surgical treatment options for the condition have been described in the literature. This study aimed to investigate whether physiolysis with resection of the Vickers ligament can successfully halt the progression of the disease in a cohort of young patients, as would be expected based on existing literature on this topic.</p><p><strong>Material and methods: </strong>An analysis was performed on the records of all patients with Madelung's deformity who were primarily treated with physiolysis with resection of the Vickers ligament between January 2001 and June 2017. Patients were invited for follow-up examinations, and surgical outcome was assessed. Parameters evaluated included pain at rest and under load, range of motion of the wrists, and activity level. Additionally, standard X-rays and radiological measurements were performed for each operated wrist. The collected data was compared with the preoperative data from patient records.</p><p><strong>Results: </strong>Nine wrists were included in the study. The average age at the time of surgery was 13.2 years, and the average follow-up period was five years. Extension and ulnar abduction showed a slight decrease from preoperative to follow-up, while flexion improved minimally, and radial abduction and forearm rotation showed noticeable improvement. The visual analogue scale score for pain at rest increased from preoperative 0.25 points to 1.88 points at follow-up. Under load, the average pain score increased from 2.00 to 4.25 points. The mean DASH score increased from 6.04 points before the surgical procedure to 12.20 points at follow-up. The average values of two out of the five measured McCarroll parameters increased, the increase being statistically significant for lunate subsidence. A follow-up procedure was required in one wrist.</p><p><strong>Conclusion: </strong>In our cohort, the progression of Madelung's deformity was only partially halted by physiolysis with resection of the Vickers ligament, and a significant increase in pain symptoms during the study period could not be avoided. Therefore, this procedure should be used cautiously in skeletally immature patients.</p>","PeriodicalId":55075,"journal":{"name":"Handchirurgie Mikrochirurgie Plastische Chirurgie","volume":" ","pages":"235-241"},"PeriodicalIF":0.6,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140873418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}