Archives of orthopaedic and trauma surgery
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Arch Orthop Trauma Surg · May 2008
Potential risk of cartilage damage in double bundle ACL reconstruction: impact of knee flexion angle and portal location on the femoral PL bundle tunnel.
The aim of this study was to compare the impact of knee flexion angle and the level of the medial drilling portal on a potential damage to the subchondral bone in double bundle ACL reconstruction, drilling the femoral PL tunnel through an accessory medial portal. We hypothesized that a knee flexion angle of 70 degrees and 90 degrees or a high accessory medial portal will result in a potential damage to the subchondral bone of the lateral femoral condyle. In a sawbone knee model, the medial portal location was standardized as 0 mm above the meniscus (low portal) and 10 mm above the meniscus (high portal). ⋯ Drilling of the femoral PL bundle tunnel through a high medial portal at low knee flexion angles may damage the subchondral bone of the lateral compartment. In ACL reconstruction restoring the AM and PL bundle separately, high medial portal drilling should be avoided. We recommend drilling of the femoral PL bundle tunnel through a low medial portal in high knee flexion.
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Arch Orthop Trauma Surg · May 2008
Randomized Controlled TrialEffect of compaction drilling during ACL reconstruction with hamstrings on postoperative tunnel widening.
This study investigates whether the amount of tibial and femoral bone tunnel enlargement following anterior cruciate ligament (ACL) reconstruction with hamstrings can be reduced by compaction bone tunnel drilling. ⋯ Level 4.
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Arch Orthop Trauma Surg · May 2008
The effect of irrigation fluid temperature on core body temperature in arthroscopic shoulder surgery.
The purpose of this study was to investigate the relationship between irrigation fluid temperature and core body temperature in patients undergoing arthroscopic shoulder surgery. ⋯ We thus conclude that core temperature may be influenced by irrigation fluid temperature and recommend that fluid be warmed to 36 degrees C.
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Arch Orthop Trauma Surg · May 2008
Relationship of the menstrual cycle phase to anterior cruciate ligament injuries in teenaged female athletes.
Anterior cruciate ligament (ACL) injuries are more common among female athletes compared to male athletes. Several studies have been reported to explain the gender difference in ACL injury rates and several risk factors underlying gender disparity are believed to exist. Hormonal effects are considered to be one of the etiological factors for female non-contact ACL injuries. The objectives of this study were to determine if ACL injuries occurred randomly or correlated with a specific phase of the female menstrual cycle in teenaged female athletes and then to determine if pre-menstrual and menstrual dysfunctions influenced these ACL injuries. ⋯ The results showed a significant increase in non-contact ACL injuries in teenage female athletes during the ovulatory phase of the menstrual cycle and the subjective activity level and the premenstrual and menstrual symptoms might not affect the likelihood of the injuries. These findings suggest that sex hormones might play a role in the incidence of female non-contact ACL injuries.
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Arch Orthop Trauma Surg · May 2008
Technical note: anatomical reconstruction of the medial patellofemoral ligament using a free gracilis autograft.
Since biomechanical studies have shown that the medial patellofemoral ligament (MPFL) is the main restraint against lateral patella displacement, reconstruction of the MPFL has become an accepted surgical technique to restore patellofemoral stability. Recently, various procedures have been described addressing the reconstruction of the medial patellofemoral complex. We present a technique where the MPFL is reconstructed anatomically to restore physiological kinematics and stability using a free gracilis tendon autograft.