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External rotator sparing with posterior acetabular fracture surgery: does it change outcome?

Ceylan H, Selek O, Inanir M, Yonga O, Odabas Ozgur B, Sarlak AY - Adv Orthop (2014)

Bottom Line: The radiographic results at the final followup were excellent in 9 hips (45%), good in 6 hips (30%), fair in 4 hips (20%), and poor in one hip (5%) according to the criteria developed by Matta.The greatest loss of strength was in internal rotation.Accurate initial reduction and longer postoperative muscle strengthening exercise programs seem critical to decrease postoperative hip muscle weakness after acetabular fractures.

View Article: PubMed Central - PubMed

Affiliation: Department of Orthopaedics and Traumatology, Akademi Hospital, 41300 Kocaeli, Turkey.

ABSTRACT
This study analyses the results of the treatment with external rotator sparing approach in acetabular fractures to determine whether muscle sparing has a positive impact on functional outcome. 20 patients with a mean age of 45.9 years (range: 26-64) that had been treated for displaced acetabular fractures were included in this series. Short Musculoskeletal Function Assessment (SMFA) questionnaire and hip muscle strength measurement were done at the 24-month of follow-up period. The radiographic results at the final followup were excellent in 9 hips (45%), good in 6 hips (30%), fair in 4 hips (20%), and poor in one hip (5%) according to the criteria developed by Matta. The average SMFA score for all of the patients was 18.3 (range: 0-55.4). The mean dysfunctional and bother indexes were 17.2 and 20.6, respectively. The overall muscle strength deficit was 11.8%. The greatest loss of strength was in internal rotation. In patients with better postoperative reduction quality of acetabular fracture, peak torque, and maximum work of hip flexion, extension and also internal rotation maximum work deficit were significantly lower (P < 0.05). Accurate initial reduction and longer postoperative muscle strengthening exercise programs seem critical to decrease postoperative hip muscle weakness after acetabular fractures.

No MeSH data available.


Related in: MedlinePlus

The hip muscle strength measurement by using Biodex System 3 Dynamometer. The flexion and extension muscle forces were measured at standing position.
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fig2: The hip muscle strength measurement by using Biodex System 3 Dynamometer. The flexion and extension muscle forces were measured at standing position.

Mentions: The strength of the hip muscle groups was measured at the 24 months after acetabular fracture surgery using a Biodex System 3 Dynamometer (Biodex Medical System, Shirley, NY, USA). Dynamometer axis was calibrated according to hip rotation center for all measurements. The flexion, extension, abduction, and adduction muscle forces were measured at standing position (Figure 2); internal and external rotators were tested with the patient sitting with 90° flexion of the hip and knee joints. Five trials were performed for each injured and uninjured hip [21]. Only the trial with the best performance of peak torque (Nm) and maximum work (Joule) was used in the statistical analysis.


External rotator sparing with posterior acetabular fracture surgery: does it change outcome?

Ceylan H, Selek O, Inanir M, Yonga O, Odabas Ozgur B, Sarlak AY - Adv Orthop (2014)

The hip muscle strength measurement by using Biodex System 3 Dynamometer. The flexion and extension muscle forces were measured at standing position.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4109071&req=5

fig2: The hip muscle strength measurement by using Biodex System 3 Dynamometer. The flexion and extension muscle forces were measured at standing position.
Mentions: The strength of the hip muscle groups was measured at the 24 months after acetabular fracture surgery using a Biodex System 3 Dynamometer (Biodex Medical System, Shirley, NY, USA). Dynamometer axis was calibrated according to hip rotation center for all measurements. The flexion, extension, abduction, and adduction muscle forces were measured at standing position (Figure 2); internal and external rotators were tested with the patient sitting with 90° flexion of the hip and knee joints. Five trials were performed for each injured and uninjured hip [21]. Only the trial with the best performance of peak torque (Nm) and maximum work (Joule) was used in the statistical analysis.

Bottom Line: The radiographic results at the final followup were excellent in 9 hips (45%), good in 6 hips (30%), fair in 4 hips (20%), and poor in one hip (5%) according to the criteria developed by Matta.The greatest loss of strength was in internal rotation.Accurate initial reduction and longer postoperative muscle strengthening exercise programs seem critical to decrease postoperative hip muscle weakness after acetabular fractures.

View Article: PubMed Central - PubMed

Affiliation: Department of Orthopaedics and Traumatology, Akademi Hospital, 41300 Kocaeli, Turkey.

ABSTRACT
This study analyses the results of the treatment with external rotator sparing approach in acetabular fractures to determine whether muscle sparing has a positive impact on functional outcome. 20 patients with a mean age of 45.9 years (range: 26-64) that had been treated for displaced acetabular fractures were included in this series. Short Musculoskeletal Function Assessment (SMFA) questionnaire and hip muscle strength measurement were done at the 24-month of follow-up period. The radiographic results at the final followup were excellent in 9 hips (45%), good in 6 hips (30%), fair in 4 hips (20%), and poor in one hip (5%) according to the criteria developed by Matta. The average SMFA score for all of the patients was 18.3 (range: 0-55.4). The mean dysfunctional and bother indexes were 17.2 and 20.6, respectively. The overall muscle strength deficit was 11.8%. The greatest loss of strength was in internal rotation. In patients with better postoperative reduction quality of acetabular fracture, peak torque, and maximum work of hip flexion, extension and also internal rotation maximum work deficit were significantly lower (P < 0.05). Accurate initial reduction and longer postoperative muscle strengthening exercise programs seem critical to decrease postoperative hip muscle weakness after acetabular fractures.

No MeSH data available.


Related in: MedlinePlus