Oblique Osteotomy Stabilized with a Type II External Fixator

Author(s):  
A JOHNSON
2016 ◽  
Vol 23 (03) ◽  
pp. 279-283
Author(s):  
Dr. Ashfaque Hussain Mirjat ◽  
Dr. Irshad Ahmed Bhutto ◽  
Dr. Shakeel Ahmed Memon

2006 ◽  
Vol 19 (01) ◽  
pp. 61-63 ◽  
Author(s):  
Y. Yeshurun ◽  
R. Shahar ◽  
J. Shani

SummaryHyperextension injury of the tarsometatarsal joint (TMTJ) is a debilitating injury and arthrodesis of this joint is often the only procedure that can result in full return to function. Most surgical procedures described for arthrodesis of the tarsometatarsal joint necessitate the use of external, splint or cast, to protect the implants used from fatigue failure. This report describes the successful use of type II external fixator that spans the tarsometatarsal joint in four dogs with hyperextension injury of the tarsometatarsal joint. This technique enables the patient to bear weight on the limb immediately after surgery until bony fusion is achieved, without the need for an additional protecting splint.


1999 ◽  
Vol 12 (04) ◽  
pp. 178-182 ◽  
Author(s):  
H. M. Wotton ◽  
K. H. Kraus

SummaryIn order to investigate the effects of two clamp types on type II external fixator stiffness, models using wooden dowels were constructed and mechanically tested. Kirschner-Ehmer clamps were compared to Securos clamps in four-pin type II external fixator configurations. Increasing axial loads were applied and displacement at a gap in the centre of the model measured. Linear regression and comparison of the slope of the regression lines before yield, after yield, and throughout 700N assessed model performance. The resulting load displacement curves were linear. There was no difference in model stiffness before yield, but was greater with models constructed with Securos clamps after yield and overall. The mean relative stiffness of the models constructed with the Kirschner-Ehmer type clamps were 320 ± 53.8 Newtons/mm, and with models constructed with Securos type clamps were 425 ± 74.8 Newtons/mm. Utilizing Securos clamps resulted in significantly (p<0.05) greater frame stiffness that is attributable to higher load at yield and greater stiffness after yield. Increasing resistance to rotational moments at the clamp/connecting bar junction should result in less stress imparted to the bone/pin interface, decreasing strain and decreasing pin loosening.Axial stiffness in models of bilateral external fixators using Kirschner-Ehmer type clamps versus Securos clamps were compared. The stiffness of fixators constructed with Securos clamps was greater overall and at high loads due to a more secure fixation pin/connecting bar junction. Increased fixator stiffness would result in less stress at the bone/pin interface and may contribute to less pin loosening.


2001 ◽  
Vol 14 (01) ◽  
pp. 25-31 ◽  
Author(s):  
A. M. Marchevsky ◽  
R. A. Read ◽  
C. Eger ◽  
R. K. Sivacolundhu

SummaryChronic Achilles mechanism injuries require aggressive treatment with excision of degenerate tissue. Following excision of degenerate tendon, the defect created may be too large to allow simple apposition of tendon to bone. Use of peroneus brevis and peroneus longus tendon transpositions (passing through bone tunnels drilled in the calcaneus), +/− lengthening of the gastrocnemius tendon, and reinforcement with a free fascial strip graft allows reconstruction of the area. Postoperative support should be provided using a type II transarticular external fixator for four weeks, followed by a splint or Robert Jones bandage for three weeks. Treatment, in all four of the dogs in this report, resulted in a good to excellent outcome. Based on the favourable results in this series, resection of all grossly abnormal tendon should be considered in cases of Achilles mechanism rupture, even though reconstruction of the area is more complex.Five Achilles mechanism reconstructions were performed in four dogs with chronic injury to the tendon. Following excision of degenerate tendon the area was reconstructed, in each case using peroneus brevis and peroneus longus tendon transpositions, lengthening of the gastrocnemius tendon and reinforcement with a free fascial strip graft. Post-operative support was provided in the form of a type II trans-articular external fixator for four to five weeks, followed by a splint or Robert Jones bandage for two to three weeks. The results in all of the dogs were good to excellent. One dog returned to full working capacity. Two dogs returned to unrestricted exercise without any observable lameness. One dog (bilateral injury) is sound but the owners have decided to limit the dog’s access to unrestricted activity.


2013 ◽  
Vol 20 (04) ◽  
pp. 600-605
Author(s):  
ROOHULLAH JAN ◽  
ZAHID ASKAR ◽  
JAVED IQBAL

Introduction: Open Tibial shaft fractures are one of the most common fractures of long bones. External fixation is methodof choice for the treatment of open tibial shaft fractures. The subcutaneous location of tibia makes it suitable for the application of externalfixator. Patients and Methods: This study was done on 50 patients at Orthopaedics and Trauma unit “B” at Khyber Teaching Hospital,Peshawar, from Jan 2008 to Feb. 2009 to determine functional outcome of A.O. external fixator in open tibial fractures in terms of knee andankle mobility, pain and gait on full body weight bearing. The data of all patients was entered in standardized proforma and analyzed onSPSS 10. Results: There were 43 (86%) males and 7 (14%) females. There were 17 (34%) type-II and 20 (40%) type IIIA and 13 (26%)type III B fractures. Knee mobility was full (100%) in 49 (98%) cases, 75% in 1(2%). 43 (86%) cases retained 100% ankle joint mobilitywhile it was 75% in 4 (8%), 50 % in 2 (4%) cases and 25 % in 1(2%) cases. On full body weight bearing, 42(84%) patients were pain free,and moderate pain was in 4(8%) cases. In 42(84%) cases the gait was completely normal on full body weight bearing while 3(6%) casesshowed significant limping. Conclusion: The excellent functional results in our series show that external fixation of tibia is safe andeffective in terms of restoring functions of tibia.


Cureus ◽  
2021 ◽  
Author(s):  
Stamatios A Papadakis ◽  
Dimitrios Pallis ◽  
Margarita-Michaela Ampadiotaki ◽  
Georgios Gourtzelidis ◽  
Konstantinos Kateros ◽  
...  

2013 ◽  
Vol 26 (03) ◽  
pp. 238-241 ◽  
Author(s):  
M. Pèlach ◽  
C. Font ◽  
J. Cairó ◽  
J. Font

SummaryA case of bilateral calcaneal epiphysiolysis in a six-month-old female Dobermann Pinscher is described in this report. The absence of a traumatic event and the clinical, radiographic and histopathological abnormalities led us to the diagnosis of simultaneous bilateral epiphysiolysis of the calcaneus. A tension band and a type II transarticular external fixator were placed. The clinical signs were resolved only temporarily because of the gravity of the bone changes.


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