Miller (1978) observed 12 persons with recurrent dislocation of the patella in 3 generations of a family with no male-to-male transmission. Six of those affected had genu valgum. Miller (1978) noted that Carter and Sweetnam (1960) had reported ... Miller (1978) observed 12 persons with recurrent dislocation of the patella in 3 generations of a family with no male-to-male transmission. Six of those affected had genu valgum. Miller (1978) noted that Carter and Sweetnam (1960) had reported 10 patients in a series of 97 in whom a family history of recurrent dislocation of the patella and of the shoulder was established; 2 of the affected families also had generalized joint laxity (see 147900), whereas the remaining 7 showed a variety of local predisposing causes. None of the patients had a valgus deformity. Borochowitz et al. (1988) described a family in which multiple members had recurrent dislocation of the patella, with several instances of male-to-male transmission. The proband also had hypertelorism and bilateral short fourth and fifth metatarsus. None of the affected individuals showed joint laxity.