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Functional outcome of knee arthrodesis with a monorail external fixator.

Roy AC, Albert S, Gouse M, Inja DB - Strategies Trauma Limb Reconstr (2016)

Bottom Line: We present salient advantages along with the radiological and functional outcome of twenty four patients treated with a single monorail external fixator.Improvements in functional outcome as assessed by the lower extremity functional score (LEFS), and the SF-36 was significant (p = 0.000).The outcome, though far from ideal, is definitely positive and predictable.

View Article: PubMed Central - PubMed

Affiliation: Department of Orthopedics Unit-1, CMC, Vellore, India.

ABSTRACT
Several methods for obtaining knee arthrodesis have been described in the literature and world; over, the commonest cause for arthrodesis is a failed arthroplasty. Less commonly, as in this series, post-infective or traumatic causes may also require a knee fusion wherein arthroplasty may not be indicated. We present salient advantages along with the radiological and functional outcome of twenty four patients treated with a single monorail external fixator. All patients went on develop fusion at an average of 5.4 months with an average limb length discrepancy of 3 cm (1.5-6 cm). Improvements in functional outcome as assessed by the lower extremity functional score (LEFS), and the SF-36 was significant (p = 0.000). Knee arthrodesis with a single monorail external fixator is a reasonable single-staged salvage option in patients wherein arthroplasty may not be the ideal choice. The outcome, though far from ideal, is definitely positive and predictable.

No MeSH data available.


Immediate post-operative lateral plain radiograph showing knee arthrodesis performed with an anterior monorail fixator
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Fig2: Immediate post-operative lateral plain radiograph showing knee arthrodesis performed with an anterior monorail fixator

Mentions: Since 1948 [1], external fixators have been utilized to achieve compression across the fusion site. The use of larger diameter radially preloaded half pins has improved fixation and stability. The technique of knee arthrodesis with a monolateral fixator has been described using dynamic axial fixator (DAF, Orthofix SRL, Verona, Italy). The same type of device has been used to bridge bone defects [2]. In this series, we used a monorail external fixator to achieve fixation and compression across the knee for arthrodesis in patients with either post-traumatic or post-septic sequelae (Figs. 1, 2).Fig. 1


Functional outcome of knee arthrodesis with a monorail external fixator.

Roy AC, Albert S, Gouse M, Inja DB - Strategies Trauma Limb Reconstr (2016)

Immediate post-operative lateral plain radiograph showing knee arthrodesis performed with an anterior monorail fixator
© Copyright Policy - OpenAccess
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4814381&req=5

Fig2: Immediate post-operative lateral plain radiograph showing knee arthrodesis performed with an anterior monorail fixator
Mentions: Since 1948 [1], external fixators have been utilized to achieve compression across the fusion site. The use of larger diameter radially preloaded half pins has improved fixation and stability. The technique of knee arthrodesis with a monolateral fixator has been described using dynamic axial fixator (DAF, Orthofix SRL, Verona, Italy). The same type of device has been used to bridge bone defects [2]. In this series, we used a monorail external fixator to achieve fixation and compression across the knee for arthrodesis in patients with either post-traumatic or post-septic sequelae (Figs. 1, 2).Fig. 1

Bottom Line: We present salient advantages along with the radiological and functional outcome of twenty four patients treated with a single monorail external fixator.Improvements in functional outcome as assessed by the lower extremity functional score (LEFS), and the SF-36 was significant (p = 0.000).The outcome, though far from ideal, is definitely positive and predictable.

View Article: PubMed Central - PubMed

Affiliation: Department of Orthopedics Unit-1, CMC, Vellore, India.

ABSTRACT
Several methods for obtaining knee arthrodesis have been described in the literature and world; over, the commonest cause for arthrodesis is a failed arthroplasty. Less commonly, as in this series, post-infective or traumatic causes may also require a knee fusion wherein arthroplasty may not be indicated. We present salient advantages along with the radiological and functional outcome of twenty four patients treated with a single monorail external fixator. All patients went on develop fusion at an average of 5.4 months with an average limb length discrepancy of 3 cm (1.5-6 cm). Improvements in functional outcome as assessed by the lower extremity functional score (LEFS), and the SF-36 was significant (p = 0.000). Knee arthrodesis with a single monorail external fixator is a reasonable single-staged salvage option in patients wherein arthroplasty may not be the ideal choice. The outcome, though far from ideal, is definitely positive and predictable.

No MeSH data available.