The primary function of the femoral component is the replacement of the femoral head and neck after resection of the arthritic or necrotic segment. 股骨假體的主要功能是替換因關(guān)節炎或壞死而被切除的股骨頭和頸部。
The presence of a collar on cementless femoral components is more controersial because it may preent complete seating of the stem, thereby making it loose at implantation. 無(wú)骨水泥固定股骨假體的頸領(lǐng)仍有較大爭議，因其可能阻礙柄完全插入髓腔，從而在植入時(shí)就發(fā)生松動(dòng)。
