. 2019 Mar 5;31(1):33–39. doi: 10.5371/hp.2019.31.1.33

Table 1. Anatomical Description and Patients Position of the Approaches.

Approach	ALS	DAA	DLA	PA	SA
Original articles	Modified Watson-Jones¹⁶,¹³⁾	Distal part of Smith-Peterson¹⁴,¹⁵⁾	Modified Harding¹⁶,¹⁷⁾	Moore¹⁸,¹⁹⁾	Superior capsulotomy²⁰⁾
Anatomical description	Between gluteus medius and tensor fascia latae	Between tensor fascia latae and sartorius	Between fascia latae and gluteus maximus	Splitting of gluteus maximus	Splitting of gluteus maximus
Anatomical description	Between gluteus medius and tensor fascia latae	Between tensor fascia latae and sartorius	Dissection of anterior third of gluteus medius and minimus	Incision of piriformis, conjoined tendon and the obturator externus	Between piriformis and gluteus medius
Patients position	Supine	Supine	Lateral	Lateral	Lateral
Femoral preparation position	Extended 20°	Extended 30°	Flexed 70°	Flexed 70°	Flexed 70°
	adducted 30°	adducted 15°	adducted 20°	adducted 20°	adducted 30°
	ER 90°	ER 90°	ER 90°	IR 90°	IR 20°

ALS: anterolateral supine approach, DAA: direct anterior approach, DLA: direct lateral approach, PA: posterior approach, SA: superior approach, ER: external rotation, IR: internal rotation.