Femoral Reconstruction Using External Fixation

Table 5

Subgroup Comparison table.

	Femoral lengthening	Femoral deformities	Nonunion correction/bone transport
Number of patients	21	12	10
Number of femora	23	14	10
Age	25.29	33.54	41.5
Follow-up time after surgery (months)	38.9	35.8	53.03
Pre-operative varus (mm medial MAD)	12.64	47.83	36.75
Post-operative varus (mm medial)	7.0	11.09	11.29
Pre-operative valgus (mm lateral MAD)	16.73	27.71	7.0
Post-operative valgus (mm lateral)	11.29	4.75	3.20
Pre-operative LDFA (deg.)	87.57	88.57	94.0
Post-operative LFDA (deg.)	88.77	91.14	85.9
Pre-operative knee ROM (deg.)	−0.24–131.82	0.71–120	0.0–71.43
Post-operative knee ROM (deg.)	0.22–123.04	−2.0–116.79	0.0–46.67
Total pre-operative LLD/bone loss (cm)	4.69	2.14	7.14
Post-operative total LLD (cm)	1.29	1.36	1.71
Total pre-operative femoral leg length discrepancy (cm)	2.98	1.46	5.70
Post-operative femoral length discrepancy (cm)	0.30	0.72	0.36
Distraction time (months)	1.92	0.46	4.27
Consolidation (months)	3.87	3.23	5.61
Total time in frame (months)	5.77	3.66	9.92
External fixation index (months/cm)	2.15		1.86
Complications	22	9	7

LLD: leg length discrepancy; ROM: range of motion; deg.: degrees; LDFA: lateral distal femoral angle; MAD: mechanical axis deviation; postoperative values in bold.