Abstract
Appropriate limb length (LL) and femoral offset (OS) after total hip arthroplasty (THA) are crucial for a successful and lasting outcome. However, intraoperative assessment is difficult. Computed navigation is effective but the use of radiation and of invasive bone references is cause of concern. Imageless, pinless navigation systems have been shown to be accurate in experimental studies. However, almost no clinical validation has been performed. We used a minimally-invasive computer-navigated system (MICNS) in conjunction with an imageless measurement technique for implanting 60 consecutive THAs. Head/neck trial components of different size were applied, and the differences in LL and femoral OS measurements were recorded and compared to the implant manufacturer's specifications, corrected for the anatomical variations of each patient. The imageless MICNS revealed a valid and accurate intra-operative tool for measuring LL and femoral OS in vivo.
| Original language | English |
|---|---|
| Pages (from-to) | 1026-1029 |
| Number of pages | 4 |
| Journal | Journal of Arthroplasty |
| Volume | 29 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2014 |
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Keywords
- Accuracy
- Computer navigation
- Hip arthroplasty
- Pinless femoral array
ASJC Scopus subject areas
- Orthopedics and Sports Medicine
Cite this
Intraoperative validation of navigated limb measurements in THA using a pinless femoral array. / Ulivi, Michele; Orlandini, Luca; Pascale, Walter; Consonni, Olmo; Sansone, Valerio.
In: Journal of Arthroplasty, Vol. 29, No. 5, 2014, p. 1026-1029.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Intraoperative validation of navigated limb measurements in THA using a pinless femoral array
AU - Ulivi, Michele
AU - Orlandini, Luca
AU - Pascale, Walter
AU - Consonni, Olmo
AU - Sansone, Valerio
PY - 2014
Y1 - 2014
N2 - Appropriate limb length (LL) and femoral offset (OS) after total hip arthroplasty (THA) are crucial for a successful and lasting outcome. However, intraoperative assessment is difficult. Computed navigation is effective but the use of radiation and of invasive bone references is cause of concern. Imageless, pinless navigation systems have been shown to be accurate in experimental studies. However, almost no clinical validation has been performed. We used a minimally-invasive computer-navigated system (MICNS) in conjunction with an imageless measurement technique for implanting 60 consecutive THAs. Head/neck trial components of different size were applied, and the differences in LL and femoral OS measurements were recorded and compared to the implant manufacturer's specifications, corrected for the anatomical variations of each patient. The imageless MICNS revealed a valid and accurate intra-operative tool for measuring LL and femoral OS in vivo.
AB - Appropriate limb length (LL) and femoral offset (OS) after total hip arthroplasty (THA) are crucial for a successful and lasting outcome. However, intraoperative assessment is difficult. Computed navigation is effective but the use of radiation and of invasive bone references is cause of concern. Imageless, pinless navigation systems have been shown to be accurate in experimental studies. However, almost no clinical validation has been performed. We used a minimally-invasive computer-navigated system (MICNS) in conjunction with an imageless measurement technique for implanting 60 consecutive THAs. Head/neck trial components of different size were applied, and the differences in LL and femoral OS measurements were recorded and compared to the implant manufacturer's specifications, corrected for the anatomical variations of each patient. The imageless MICNS revealed a valid and accurate intra-operative tool for measuring LL and femoral OS in vivo.
KW - Accuracy
KW - Computer navigation
KW - Hip arthroplasty
KW - Pinless femoral array
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U2 - 10.1016/j.arth.2013.09.038
DO - 10.1016/j.arth.2013.09.038
M3 - Article
VL - 29
SP - 1026
EP - 1029
JO - Journal of Arthroplasty
JF - Journal of Arthroplasty
SN - 0883-5403
IS - 5
ER -