Penetrating cervical hip fracture screws: Report of 4 cases

Laparoscopic extraction of a displaced LIH pin: A case report

“…In our case, as in cases from the literature (Cohen et al 1977), the pin or screw might be situated close to the iliac vessels and the threads of a screw or the sharp hook of a LIH pin may injure the viscera or the iliac vessels. Thus there is a risk of vascular injury, either spontaneously (Posman andMorawa 1985, Sundgren andPersson 1994) or during efforts to remove the osteosynthesis material through the hip (Johnson et al 1990). If the pin has penetrated significantly into the pelvis, it is probably safer to remove it through the abdomen.…”

Intrapelvic penetration of Olmed cervical hip fracture screws:A report of 7 cases

“…It is a major complication with risks of injury to the retro-and intrapelvic organs. Sundgren and Persson (1994) presented 4 cases of pelvic penetration of Olmed screws, 1 fatal case due to injury to the iliac artery. To avoid this hazard, a retroperitoneal approach may be indicated.…”

“…The mechanism of the proximal migration is not known. Sundgren and Persson (1994) proposed a twisting movement, especially with non-union. Another contributory factor could be the sharpcutting end of the screw, facilitating perforation of the acetabulum (Figure 4).…”

“…Recently, Sundgren and Persson (1994) reported of 4 cases (1 with a fatal outcome) after osteosynthesis with Olmed screws. I report the 7 cases we observed in our hospital from 1990 until 1994.…”

Fractures of the Femoral Neck and Proximal Femur

“…Some screws are self-tapping. Rarely, these have been shown to migrate into the pelvis [158]. In a consecutive prospective series of more than 600 cervical fractures operated on using hook pin osteosynthesis and followed for 2 years clinically and radiographically, a total of 23 % of the patients showed healing complication [156].…”