Archives of orthopaedic and trauma surgery
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Arch Orthop Trauma Surg · Jan 2012
Comparative Study Clinical TrialHook plate fixation for acromioclavicular joint separations restores coracoclavicular distance more accurately than PDS augmentation, however presents with a high rate of acromial osteolysis.
Hook plate fixation of acromioclavicular (AC) joint separations carries the disadvantage of compulsory implant removal, occasional implant fatigue and secondary loss of reduction. This study compares the clinical and radiological outcome of a new polyaxial angular stable hook plate (HP) with absorbable polydioxansulfate (PDS) sling. ⋯ Hook plate fixation employing a polyaxial angular stable plate finally restores the coracoclavicular distance more accurately than augmentation with a PDS sling. Although in HP group no implant failure occurred, major disadvantages are initial overcorrection and acromial osteolysis. Both have no influence on final functional results.
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Arch Orthop Trauma Surg · Jan 2012
Clinical TrialCombined tears of the subscapularis and supraspinatus tendon: clinical outcome, rotator cuff strength and structural integrity following open repair.
Anterosuperior rotator cuff tears involving the subscapularis and supraspinatus tendons are less common than other tears of the rotator cuff. The purpose of this study was to report the clinical outcome, rotator cuff strength and structural integrity of open repair of combined anterosuperior rotator cuff tears. ⋯ Open repair of combined anterosuperior rotator cuff tears achieved good postoperative results despite a residual rotator cuff strength deficit. Combined supraspinatus-/full-thickness subscapularis tears achieved equal clinical and radiographic results compared with supraspinatus-/partial-thickness subscapularis tears.
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Arch Orthop Trauma Surg · Jan 2012
Comparative StudyA novel computer-assisted drill guide template for thoracic pedicle screw placement: a cadaveric study.
The objective of this study was to develop a novel, patient-specific, navigational template for thoracic pedicle screw placement. ⋯ We have developed a novel, patient-specific, navigational template for thoracic pedicle screw placement with good applicability and high accuracy.
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Arch Orthop Trauma Surg · Jan 2012
Comparative StudyAngle stable locking nails versus conventionally locked intramedullary nails in proximal tibial shaft fractures: a biomechanical study.
A tibial nail with fixed-angle locking screws intends to combine the advantages of angular stability and intramedullary stabilization in extraarticular proximal tibial fractures. The goal of this study is to analyze if the angle stable tibial nail (ASN) is biomechanically more stable than an established conventional standard nail (CN). ⋯ No significant difference in stability between the two compared implants could be demonstrated. A trend could be shown indicating that the rate of nail loosening in the proximal osteotomized part of the bone was lower for the angle stable nail. This trend, however, could not be substantiated statistically.
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Arch Orthop Trauma Surg · Jan 2012
Randomized Controlled Trial Comparative StudyClinical outcome after Chevron-Akin double osteotomy versus isolated Chevron procedure: a prospective matched group analysis.
Hallux valgus is a frequent condition of the forefoot, resulting in cosmetic deformity and pain. Chevron osteotomy (CO) is widely employed for the treatment of hallux valgus. Chevron-Akin double osteotomy (CAO) was previously described and superiority over an isolated Chevron procedure was assumed. The objective of this study was to compare the short-to-middle term outcomes of CO and CAO. ⋯ These findings indicate that Chevron-Akin double osteotomy is a save and practicable procedure for the treatment of mild-to-moderate hallux valgus. Superiority of combined Chevron-Akin procedure over an isolated Chevron osteotomy might be limited to distinct clinical settings, but should not be generally assumed.