Spontaneous Osteonecrosis of the Tarsal Navicular: A Report of Two Cases

Table 1

Details of spontaneous osteonecrosis of tarsal navicular cases and operative methods.

Author	Case number	Average age (y)	Sex	Operation methods	Implant
Aktaş et al. [1]	1 case, 1 foot	50	Female	Talonavicular arthrodesis (single arthrodesis)	2 cannulated cancellous screws
Brian et al. [2]	1 case, 1 foot	25	Female	Talonavicular arthrodesis (single arthrodesis)	Cannulated cancellous screw
Cao et al. [3]	9 cases, 9 feet	48.2 (range 41 to 58)	4 male and 5 female	Talonavicular-cuneiform arthrodesis (double arthrodesis)	3 4.0 mm cannulated screws
Janositz et al. [5]	1 case, 1 foot	18	Female	Percutaneous drilling decompression	No use
Levinson et al. [6]	1 case, 1 foot	25	Male	Internal fixation with a free medial femoral condyle vascularized bone graft	No use
Lui [7]	6 cases, 6 feet	68 (range 47 to 76)	All female	Arthroscopic triple arthrodesis	3 4.0 mm cannulated screws
Tan et al. [9]	1 case, 1 foot	51	Female	Talonavicular-cuneiform arthrodesis (double arthrodesis)	An 8-hole AO low-contact plate with 3.5/4.0 mm screws
Tosun et al. [10]	1 case, 1 foot	43	Male	Internal fixation with an autologous bone graft	Not used
Wang et al. [11]	6 cases, 7 feet	54 (range 45 to 60)	1 male and 5 female	Talonavicular arthrodesis (single arthrodesis) in 5 feet and triple arthrodesis in 2 feet	Talonavicular arthrodesis with 2 compressive screws and triple arthrodesis with plate and screws
Yu et al. [12]	7 cases, 7 feet	55 (range 46 to 62)	1 male and 6 female	Talonavicular-cuneiform arthrodesis (double arthrodesis)	Screws and plate
Present cases	2 cases, 2 feet	69 (range 68 to 70)	2 female	Talonavicular-cuneiform arthrodesis (double arthrodesis)	LCP Distal Radius Plate (SYNTHES) with 6 2.4 mm locking screws and CSLP-VA (SYNTHES) with 4 4.0 mm locking screws