Early motor function after local treatment of brain metastases in the motor cortex region with stereotactic radiotherapy/radiosurgery or microsurgical resection: a retrospective study of two consecutive cohorts

Table 1 Overview of published results of functional outcome of different treatment modalities (MRS vs. SRS/SRT) of brain metastases in the motor cortex region

	Patients	Tumor volume	Preoperative hemiparesis	RPA Score mean	Motoric improvement	Motoric deterioration
Weil RJ et Louser RR ^a	17	10.2 cm³ (mean)	100%	1,92	88%	12%
Obermueller T et al. ^a	56	–	57%	2	31%	21%
present series MRS ^a	27	10.5 cm³ (mean)	89%	1.85	54%	11%
present series SRT/SRS ^b	41	4.9 cm³ (mean)	20%	1.81	17%	5%
Luther N. et al. ^b	96	27 pat. >9 cm³	51%	–	31%	37%
Luther N. et al. ^b	96	69 pat. <9 cm³	51%	–	31%	12%

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