The complication rate of ankle arthroscopy (AA) ranges from 3.5% to 14%. To avoid such complications, it is essential to have a thorough understanding of the anatomy of the ankle, to perform the procedure very carefully and with appropriate instrumentation, and to use a non-invasive distraction technique. The most frequent complications are neurological (cutaneous nerve injuries), which are usually caused by direct injury during arthroscopic portals or by a distracting pin when using an invasive distraction technique. They usually resolve spontaneously within a few months. The iatrogenic formation of a pseudoaneurysm is a severe but extremely rare complication (an incidence of 0.008%). There are several treatments for pseudoaneurysms: external compression; direct thrombin injection, surgical intervention (resection of the damaged segment of the artery and reconstruction with a reversed long saphenous vein interposition graft), and endovascular embolisation. Other rare complications include wound infections (localised superficial infection), problems at the portal incisions (prolonged portal drainage, residual pain in the portal, portal scar dehiscence, cyst at the portal site), type I complex regional pain syndrome, instrument breakage, painful scars and nodules, and a number of other rarer complications. In conclusion, when performing AA, it is important to remember the potential complications and try to avoid them. When they do occur, it is essential to diagnose and treat them appropriately.

Complications of ankle arthroscopy: frequency, prevention, and treatment.

INTRODUCTION
People with haemophilia (PWH) not administered primary haematological prophylaxis since childhood, that is, those treated haematologically on demand or not treated at all, often experience the degeneration of the ankles, leading to pain and functional impairment.


AIM
To analyse the outcomes and complications of arthroscopic ankle surgery performed on PWH.


METHODS
For this narrative review of the literature, a search was conducted in PubMed on 2, December 2023, using the keywords "haemophilia", "ankle" and "arthroscopy". Of the 29 articles identified, 15 specifically related to ankle arthroscopy in PWH were selected (inclusion criterion). The remaining articles did not meet this requirement (exclusion criterion) and were therefore eliminated.


RESULTS
Arthroscopic procedures (arthroscopic synovectomy, debridement and arthrodesis of the ankle) are increasingly used in the surgical treatment of haemophilic ankle arthropathy. Although arthroscopic ankle surgery offers good outcomes in patients with haemophilia, the procedure is not free of complications, which range from 7.9% for arthroscopic ankle debridement to 13.1% in arthroscopic ankle synovectomy and 17.8% in arthroscopic ankle arthrodesis, respectively. The non-union rate of arthroscopic ankle arthrodesis is 7.1% (2/28).


CONCLUSION
Although arthroscopic interventions in the haemophilic ankle (synovectomy, debridement, arthrodesis) offer good functional outcomes, they are associated with a non-negligible rate of complications. Arthroscopic ankle surgery in PWH is major surgery and should be treated as such.

Arthroscopic ankle surgery in people with haemophilia.

Complex regional pain syndrome (CRPS) is a challenging disorder occurring in patients most often after trauma or surgery. Its treatment is very complex, and even then, no treatment is fully effective. Capsaicin is a well-accepted treatment for neuropathic pain. However, its use in CRPS is controversial, with few studies having been published on it. In this case report, we describe the case of a female patient with CPRS type II, whose treatment with topical capsaicin resulted in great functional improvement. The patient was referred to the Pain Medicine Unit due to a CRPS type II due to trauma in her right wrist. She complained of severe pain in the median nerve territory of her dominant hand, associated with hyperalgesia, allodynia, burning, and electric shock sensation, resulting in functional disability. Electromyography was compatible with severe axonal injury of the right median nerve of the wrist. After conventional therapies were tried with no improvement, treatment with a capsaicin 8% patch was proposed. A functional improvement was observed after two applications of the capsaicin treatment, allowing the patient to regain activity in her hand. This shows that although evidence for capsaicin use in CRPS treatment is scarce, it can be a viable alternative for some patients.

/pdf/complex-regional-pain-syndrome-is-there-a-role-for-capsaicin-3u54761q.pdf

Complex Regional Pain Syndrome: Is There a Role for Capsaicin?

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Complex Regional Pain Syndrome: Is There a Role for Capsaicin?