Table 2.

Risk of bias assessment according to “The Joanna Briggs Institute (2017)” critical appraisal checklist for case reports [58]

Author	1 Were patient’s demographic characteristics clearly described?	2 Was the patient’s history clearly described and presented as a timeline?	3 Was the current clinical condition of the patient on presentation clearly described?	4 Were diagnostic tests or methods and the results clearly described?	5 Was the intervention(s) or treatment procedure(s) clearly described?	6 Was the post-intervention clinical condition clearly described?	7 Were the adverse events or unanticipated events identified and described?	8 Does the case report provide takeaway lessons
Hanisch et al. [1]	Yes	Yes	Yes	Yes	Yes	Yes	NA	Yes
Jiang et al. [2]	Yes	Yes	Yes	Yes	Yes	Yes	NA	Yes
Jayade et al. [3]	Yes	Yes	Yes	Yes	Yes	Yes	NA	Yes
Ratansi et al. [4]	Yes	Yes	Yes	Yes	No	No	NA	Yes
Reddy et al. [5]	Yes	Yes	Yes	Yes	Yes	Yes	NA	Yes
Nemoto et al. [6]	Yes	Yes	Yes	Yes	Yes	Yes	NA	Yes
Godhi et al. [7]	Yes	Yes	Yes	Yes	Yes	Yes	NA	Yes
Conner and Duffy. [8]	Yes	Yes	Yes	Yes	Yes	Yes	NA	Yes
Yano et al. [9]	Yes	Yes	Yes	Yes	Yes	Yes	NA	Yes
St-Hilarie et al. [10]	Yes	Yes	Yes	Yes	Yes	Yes	NA	Yes
Spinazze et al. [11]	Yes	Yes	Yes	Yes	Yes	Yes	NA	Yes
Myoken et al. [12]	Yes	Yes	Yes	Yes	Yes	No	NA	Yes
Guarda-Nardini et al. [16]	Yes	Yes	Yes	Yes	Yes	Yes	NA	Yes
Manzano et al. [18]	Yes	Yes	Yes	Yes	Yes	Yes	NA	Yes
Uematsu et al. [19]	Yes	Yes	Yes	Yes	No	No	NA	No
Saka et al. [20]	Yes	Yes	Yes	Yes	Yes	Yes	NA	Yes
Mevio et al. [21]	Yes	Yes	Yes	Yes	Yes	Yes	NA	Yes
Lello and Makek [22]	Yes	Yes	Yes	Yes	Yes	Yes	NA	Yes
Wiesenfeld et al. [23]	Yes	Yes	Yes	Yes	Yes	Yes	NA	Yes
Fité-Trepat et al, [24]	Yes	Yes	Yes	Yes	Yes	Yes	NA	Yes
Cavalheiro et al. [25]	Yes	Yes	Yes	Yes	Yes	Yes	NA	Yes
Karaali and Emeki. [26]	Yes	Yes	Yes	Yes	Yes	Yes	NA	Yes
Onishi et al. [27]	Yes	Yes	Yes	Yes	Yes	Yes	NA	Yes
Becker et al. [28]	Yes	Yes	Yes	Yes	Yes	Yes	NA	Yes
Damian et al. [29]	Yes	Yes	Yes	Noa	Yes	Yes	NA	Yes
Wang et al. [30]	Yes	Yes	Yes	Yes	Yes	Yes	NA	Yes
Dermirkol et al. [31]	Yes	Yes	Yes	Yes	Yes	Yes	NA	Yes
Ferra et al. [32]	Yes	Yes	Yes	Yes	Yes	Nob	NA	Yes
Kang et al[33]	Yes	Yes	Yes	Yes	Yes	Yes	NA	Yes
Mashiko et al. [34]	Yes	Yes	Yes	Yes	Yes	Yes	NA	Yes
Torres et al. [35]	Yes	Yes	Yes	Yes	Yes	Yes	NA	Yes
Ahmad et al. [36]	Yes	Yes	Yes	Yes	Yes	No	NA	Yes
Almeida et al. [37]	Yes	Yes	Yes	Yes	Yes	Yes	NA	Yes
Boffano et al. [38]	Yes	Yes	Yes	Yes	Yes	Yes	NA	Yes
Kamalapur et al. [39]	Yes	Yes	Yes	Yes	Yes	Yes	NA	Yes
Spinzia et al. [40]	Yes	Yes	Yes	Yes	Yes	Yes	NA	Yes
Piombino et al. [41]	Yes	Yes	Yes	Yes	Yes	Yes	NA	Yes
Choudhary et al. [42]	Yes	Yes	Yes	Yes	Yes	Yes	NA	Yes
Thangavelu et al. [43]	Yes	Yes	Yes	Yes	Yes	Yes	NA	Yes
Ramieri et al. [44]	Yes	Yes	Yes	Yes	Yes	No	NA	Yes
Trautmann et al. [45]	Yes	Yes	Yes	Yes	Yes	Yes	NA	Yes
Bansal et al. [46]	Yes	Yes	Yes	Yes	Yes	Yes	NA	Yes
Kruse et al. [47]	Yes	Yes	Yes	Yes	Yes	Yes	NA	Yes
Rattan et al. [48]	Yes	Yes	Yes	Yes	Yes	Yes	NA	Yes
Aoki et al. [49]	Yes	Yes	Yes	Yes	Yes	Yes	NA	Yes
Kim et al. [50]	Yes	Yes	Yes	Yes	Yes	Yes	NA	Yes
Takahashi and Sato [51]	Yes	Yes	Yes	Yes	Yes	No	NA	Yes
Geist et al. [52]	Yes	Yes	Yes	Yes	Yes	No	NA	Yes
Steiner et al. [53]	Yes	Yes	Yes	Yes	Yes	Yes	NA	Yes
Naumann et al. [54]	Yes	Yes	Yes	Yes	Yes	Yes	NA	Yes
Parkash et al. [55]	Yes	Yes	Yes	Yes	Yes	Yes	NA	Yes
Fujiwara et al. [56]	Yes	Yes	Yes	Yes	Yes	Yes	NA	Yes
Arima et al. [57]	Yes	Yes	Yes	Yes	Yes	Yes	NA	Yes

^aThe focus of this article was ultrasound examination only.

^bThe myositis ossificans case was reported as a clinical challenge.

NA = not applicable.