Abstract: An arthroscopic port introduction system includes an elongate hollow introducing needle and an elongate stylet sized and adapted to be disposed within the elongate hollow introducing needle together forming a single tissue-penetrating tip. The system also includes an elongate hollow enlarging shaft adapted to be disposed over the elongate hollow introducing needle. An operative tissue-penetrating length of the elongate hollow introducing needle is exposed beyond a distal end of the elongate hollow enlarging shaft. The elongate hollow introducing needle can be removed in a proximal direction from the elongate hollow enlarging shaft. An arthroscopic port sheath is disposed over the elongate hollow enlarging shaft and an operative tissue-penetrating length of the elongate hollow enlarging shaft is exposed beyond a distal end of the arthroscopic port sheath. The elongate hollow enlarging shaft can be removed in a proximal direction from the arthroscopic port sheath.