[Corrigendum: Meryem Lemsanni et al. Sub- and intercondylar fractures of the distal humerus in adults doi: 10.11604/pamj.2020.36.346.24516]. / Corrigendum: Meryem Lemsanni et al. Fractures sus et inter-condyliennes de l'humérus distal chez l'adulte doi: 10.11604/pamj.2020.36.346.24516.

[This corrects the article DOI: 10.11604/pamj.2020.36.346.24516.].

[Sub- and intercondylar fractures of the distal humerus in adults]. / Fractures sus et inter-condyliennes de l'humérus distal chez l'adulte.

INTRODUCTION: complete joint fractures of the lower end of the humerus are rare and severe injuries in adults, affecting the functional prognosis of a narrow and complex joint such as the elbow. Multiple therapeutic options are available, but osteosynthesis is widely used provided that it can recover stable, mobile, and painless joint. The purpose of our study was to describe the epidemiological, clinical, radiological and therapeutic features of these fractures, as well as to evaluate functional outcomes in our patients. METHODS: we conducted a 3-year prospective study (January 2014-December 2016) of 38 patients older than 16 years admitted with complete sub- and intercondylar joint fracture of the lower extremity of the humerus (classified as type C according to the AO classification). They underwent surgery via transolecranian posterior approach with fixation of one or two screw plates based on anatomopathological diagnosis. Patients were followed-up for a mean period of 34 months. RESULTS: these conditions had bimodal distribution, affecting young male subjects on the one hand and elderly female subjects on the other. The main cause of fractures was road accidents (78%). During the follow-up period, one case had superficial surgical site infection and there were no cases of dismantling of equipment or pseudarthrosis. No complications after osteosynthesis for olecranon fractures were recorded in our case series. Stiffness at the elbow-joint was defined as bending/extension arc less than 50°; elbow stiffness was found in 25% of patients. Functional results were assessed using the Mayo-Clinic or Mayo-Clinic Elbow Performance Score (MEPS) with an average score of 86. Conclusion: based on our results, transolecranon posterior approach is the best option for these fractures, since it allows good joint exposure. This is essential for perfect anatomical restitution and stable osteosynthesis in order to undertake early and adapted rehabilitation.

Primary hydatid cyst of the thigh: on seven cases.

We report on seven cases that presented a benign soft-tissue mass in the thigh muscles. Ultrasonography provided the diagnosis of hydatid cyst. Total pericystecomy was performed. We point out the importance of preoperative diagnosis and the need for radical excision to avoid recurrence.

Osteitis of the fourth metatarsal caused by a date palm thorn in a child: why the dorsum of the foot is the most commonly injured site.

The palms are frequent in the region of eastern Morocco. An insidious onset of a lytic lesion in the base of the fourth metatarsal caused by a date palm thorn in a 20-year-old patient is presented. An untreated embedded thorn can cause late complications, including periostitis or osteomyelitis. In most cases, removal of the foreign body is easy, and no surgical care is needed. If detected, these injuries can be treated without complications. In children, however, the diagnosis can be very easily missed, especially if the child has aphasia and deafness, which was present in our patient. These can influence communication between the child and family, such that the patient is unable to inform the family about what object pricked him (e.g., date palm thorn, toothpick, insect) and is unable to tell the family that the foreign object remains embedded. This major communication issue between the child and family can result in potentially avoidable complications such as osteitis. No other issues were present in our patient that could have caused a delay in diagnosis, such as fear of punishment or fear of medical treatment. We present a case of date palm thorn-induced periostitis of the base of the fourth metatarsal. Surgical exploration revealed a 2.5-cm palm tree thorn embedded in granulation tissue, forming an abscess. The lesion was successfully treated by curettage of the lesion and removal of the thorn embedded in the periosteum of the metatarsal base. The purpose of the present report was to explain the mechanism of this rare entity and the frequency of this lesion on the dorsal aspect of the foot rather than on the plantar. Despite the absence of a definite history of trauma, organic foreign material should be in the differential diagnosis of a lytic lesion of the bone, especially in patients who have a problem with deafness or aphasia.

Dorsal dislocation of the first metatarsophalangeal joint associated with fractured second metatarsal head.

Traumatic dislocations of the first metatarsophalangeal joint were first described by Mouchet in 1931. The anatomical complexity of the first metatarsophalangeal joint makes this injury one of a kind. There have been a limited number of case reports of this injury. The ability to reduce the dislocation by nonoperative measures depends largely on the type of dislocation and involvement of the sesamoid complex. We report a case of a 35-year-old male with complete dorsal dislocation of the first metatarsophalangeal joint with second metatarsal head fracture. On review at 12 months he was pain free, fully mobile and pleased with the result. The papers principle message is that significant injuries to the metatarsophalangeal joint may be associated with fractures of adjacent bone segments, which may change diagnostic and therapeutic approaches. Also, the evolution of patients with this kind of injury after reduction is not well know today, at short, medium and long term. Thus could be considered to be a further development of Jahss's classification.