The American journal of sports medicine
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Some cross-sectional studies have suggested that the prevalence of low back pain (LBP) may be high among endurance athletes with repetitive back loading, but there are no large, prospective cohort studies addressing this issue. ⋯ Low back pain was not more common among former endurance athletes with specific back loading compared with non-athletes. The results indicate that years of prolonged and repetitive flexion or extension loading in endurance sports does not lead to more LBP. However, a large training volume in the past year and previous episodes with LBP are risk factors for LBP. Comparing the sports of rowing, cross-country skiing, and orienteering, it appears that whereas orienteering is protective, rowing can provoke LBP.
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Comparative Study
Arthroscopic rotator cuff repair using modified Mason-Allen medial row stitch: knotless versus knot-tying suture bridge technique.
When using a method of suture bridge technique, there may be a possibility of strangulation of the rotator cuff tendon at the medial row. The style of knots chosen to secure the medial row might conceivably be a factor to reduce this possibility. ⋯ In arthroscopic suture bridge repair of full-thickness rotator cuff tears, clinical results of both a knotless and a conventional knot-tying group showed improvement without significant difference between the 2 groups. However, the knotless group had a significantly lower retear rate compared with the conventional knot-tying group. A knotless suture bridge technique could be a new supplementary repair technique to conventional technique.
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Scapulothoracic dyskinesis is an important consequence of acromioclavicular joint dislocations. However, no reports have described changes in 3-dimensional motions of the scapula and clavicle with respect to the thorax caused by acromioclavicular joint dislocation. ⋯ The results of this cadaveric study revealed that AC and CC ligament disruption could cause dyskinesis of the scapula and clavicle. The kinematic changes could be a potential source of pain and dysfunction in the shoulder with AC joint dislocation, and therefore surgical reconstruction may be indicated in certain patients.
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The overhead-throwing athlete is a unique patient, requiring an elite, precise functional ability. Superior labral tears are quite common, and the percentage of athletes who return to play after superior labrum anterior-posterior (SLAP) repair has been variable. A tear of the infraspinatus caused by either internal impingement or tension overload may compromise this return. ⋯ A significant (>50%) tear of the infraspinatus in combination with glenohumeral internal rotation deficit (GIRD) and SLAP tears in the throwing athlete results in a guarded prognosis in return to play at the same level. While the rates of return to play in overhead-throwing athletes with an isolated SLAP tear have historically been encouraging, the prognosis for an athlete with both a SLAP and infraspinatus tear is more guarded. These patients are not likely to return to their preinjury level of play.
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Internal fixation is advocated as the primary treatment for fifth metatarsal Jones fractures in athletes; however, screw insertion site discomfort and refracture can occur especially in competitive athletes. The ideal implant has not been determined. ⋯ Headless compression screw fixation of fifth metatarsal Jones fractures provided excellent results, allowing athletes to return to full activity without both screw insertion site irritation and clinical refracture.